{"id":19559,"date":"2026-08-17T13:22:37","date_gmt":"2026-08-17T13:22:37","guid":{"rendered":"https:\/\/navia.co.in\/blog\/?p=19559"},"modified":"2026-08-17T13:22:37","modified_gmt":"2026-08-17T13:22:37","slug":"statistical-arbitrage-pair-trading","status":"publish","type":"post","link":"https:\/\/navia.co.in\/blog\/statistical-arbitrage-pair-trading\/","title":{"rendered":"Statistical Arbitrage: The Complete Guide to Pair Trading"},"content":{"rendered":"<ul><li><a class=\"aioseo-toc-item\" href=\"#aioseo-what-is-statistical-arbitrage-2\">What is statistical arbitrage?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-how-does-pair-trading-identify-market-opportunities-4\">How Does Pair Trading Identify Market Opportunities?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-mean-reversion-and-cointegration-6\">Mean Reversion and Cointegration<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-how-are-stock-pairs-identified-8\">How Are Stock Pairs Identified?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-how-does-a-pair-trading-strategy-work-10\">How Does a Pair Trading Strategy Work?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-backtesting-before-live-trading-12\">Backtesting Before Live Trading<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-what-rules-apply-to-pair-trading-14\">What Rules Apply to Pair Trading?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-getting-started-with-pair-trading-16\">Getting Started With Pair Trading<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-common-mistakes-in-pair-trading-18\">Common Mistakes in Pair Trading<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-conclusion-20\">Conclusion<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-frequently-asked-questions-22\">Frequently Asked Questions<\/a><\/li><\/ul>\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Statistical arbitrage<\/strong> looks for <strong>stock pairs<\/strong> that have historically shown related price movements. Traders monitor these relationships for periods when prices diverge. They may then use trading strategies based on an expected convergence. <strong>Retail traders<\/strong> can study such strategies using <strong>NSE trading<\/strong> data, <a href=\"https:\/\/navia.co.in\/blog\/algo-trading-explained-sebi-rules-india\/?utm_source=blog&#038;utm_medium=internal_link&#038;utm_campaign=statistical_arbitrage\">statistical tools<\/a>, and suitable risk controls.<\/p>\n\n\n\n<blockquote style=\"border-left:4px solid #e8622f;background:#fdf1ec;padding:18px 22px;margin:1.5em 0;line-height:1.8\"><strong>&#128161; Quick Answer<\/strong><br>Statistical arbitrage looks for stock pairs whose prices have historically moved together, then studies periods when they diverge. Pair trading takes opposite positions in the two securities on an expected convergence. Neither correlation nor cointegration guarantees prices will converge, so relationships can widen further and produce losses.<\/blockquote>\n\n\n\n<h2 id=\"aioseo-what-is-statistical-arbitrage-2\" class=\"wp-block-heading has-text-color has-link-color wp-elements-ca057b6e759069f13c6f04d7336a8958\" style=\"color:#023368\"><strong>What is statistical arbitrage?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Statistical arbitrage<\/strong> uses relative price relationships between <strong>correlated securities<\/strong> rather than relying only on market direction. Traders look for <strong>stock pairs<\/strong> whose prices move apart from their historical relationship. They may take positions based on an expected relationship between the securities.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">For example, ITC and HUL may show related price movements over a period. If their relationship changes, traders may study the <strong>price divergence<\/strong> before taking positions. However, the relationship may not return to its earlier pattern, creating a risk of losses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Statistical arbitrage<\/strong> often uses <a href=\"https:\/\/navia.co.in\/blog\/trading-strategies\/?utm_source=blog&#038;utm_medium=internal_link&#038;utm_campaign=statistical_arbitrage\"><strong>mean reversion<\/strong><\/a> as part of its analysis. However, historical relationships may change due to company, sector, or market factors. <strong>Retail traders<\/strong> should understand these risks before using such strategies.<\/p>\n\n\n\n<h2 id=\"aioseo-how-does-pair-trading-identify-market-opportunities-4\" class=\"wp-block-heading has-text-color has-link-color wp-elements-a72e3c3192355ab0dc4d3a330410e803\" style=\"color:#023368\"><strong>How Does Pair Trading Identify Market Opportunities?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Pair trading<\/strong> can help identify <strong>market opportunities<\/strong> by comparing <strong>stock pairs<\/strong> with historically related price movements. Traders may assess <strong>historical correlation<\/strong> and look for <strong>price divergence<\/strong> between the securities. However, a correlation above 0.7 does not guarantee that prices will converge again.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Traders may take opposite positions by buying one security and shorting the other. They may then monitor the spread and close positions if the relationship changes as expected. However, the spread can widen further, resulting in losses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Pair trading<\/strong> may involve <strong>NSE trading<\/strong>, short selling, and margin requirements. Traders should understand the applicable rules and risks before using such strategies. The <strong>Navia All-in-One App<\/strong> provides market data and trading tools for analyzing securities.<\/p>\n\n\n\n<h2 id=\"aioseo-mean-reversion-and-cointegration-6\" class=\"wp-block-heading has-text-color has-link-color wp-elements-084aad57144152adfec1caa5ea3969b1\" style=\"color:#023368\"><strong>Mean Reversion and Cointegration<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Mean reversion<\/strong> describes a tendency for a <strong>stock pair&#8217;s<\/strong> price relationship to move back toward its historical range. However, <strong>cointegration<\/strong> does not prove that prices will always converge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">For example, two securities may show a stable long-term relationship based on historical data. Traders can test this relationship using statistical methods before considering a <strong>spread trading<\/strong> strategy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">The <strong>Z-score<\/strong> measures how far a spread has moved from its historical mean. Traders may use a chosen Z-score level as part of their strategy, but it does not guarantee a profitable trade.<\/p>\n\n\n\n<h2 id=\"aioseo-how-are-stock-pairs-identified-8\" class=\"wp-block-heading has-text-color has-link-color wp-elements-5858c657d1f017ca33cda60ded1dbdbc\" style=\"color:#023368\"><strong>How Are Stock Pairs Identified?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Pair trading<\/strong> analysis can compare two securities with similar historical price movements. Analysts may study their <strong>historical correlation<\/strong> and price relationship over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">However, correlation alone does not show that two securities will continue moving together. Market conditions and company-specific factors can change these relationships.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Therefore, correlation should serve as one analytical measure rather than a standalone basis for trading decisions. <strong>NSE trading<\/strong> data can support this type of historical analysis.<\/p>\n\n\n\n<h2 id=\"aioseo-how-does-a-pair-trading-strategy-work-10\" class=\"wp-block-heading has-text-color has-link-color wp-elements-030e0e3c82dc85923f00831317596035\" style=\"color:#023368\"><strong>How Does a Pair Trading Strategy Work?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Pair trading<\/strong> typically involves analyzing <strong>stock pairs<\/strong> with historically related price movements. Traders may <strong>back test<\/strong> these relationships and use statistical methods, such as the Engle-Granger test, to assess <strong>cointegration<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">A <strong>Z-score<\/strong> can help measure how far a spread has moved from its historical mean. Traders may use predefined thresholds when designing a <strong>spread trading<\/strong> strategy. However, these thresholds do not guarantee that prices will converge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Pair trading may involve taking opposite positions in two securities. Traders should consider position sizing, margin requirements, <a href=\"https:\/\/navia.co.in\/blog\/zero-brokerage-on-fo-charges-you-still-pay\/?utm_source=blog&#038;utm_medium=internal_link&#038;utm_campaign=statistical_arbitrage\">transaction costs<\/a>, and potential losses. A <strong>market neutral<\/strong> structure does not eliminate market or strategy-specific risks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Back testing can help assess how a strategy performed on historical data. However, historical results do not guarantee similar outcomes in live trading.<\/p>\n\n\n\n<h2 id=\"aioseo-backtesting-before-live-trading-12\" class=\"wp-block-heading has-text-color has-link-color wp-elements-0ee37a1bf80a18d53d576a86eaa1efd8\" style=\"color:#023368\"><strong>Backtesting Before Live Trading<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Backtesting<\/strong> can help evaluate a <strong>pair trading<\/strong> strategy using historical <strong>NSE trading<\/strong> data. Analysts may review factors such as win rate, returns, drawdowns, and profit factor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">However, fixed thresholds such as a 1.5 profit factor or 45% win rate do not suit every strategy. Historical results also cannot guarantee similar outcomes in live markets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Therefore, use backtesting as one part of strategy evaluation. Also consider transaction costs, liquidity, execution conditions, and market changes before using any strategy.<\/p>\n\n\n\n<h2 id=\"aioseo-what-rules-apply-to-pair-trading-14\" class=\"wp-block-heading has-text-color has-link-color wp-elements-3ff7cd19189958b160a108137f57831a\" style=\"color:#023368\"><strong>What Rules Apply to Pair Trading?<\/strong><\/h2>\n\n\n\n<ul style=\"margin:1em 0;line-height:1.9\">\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Statistical arbitrage<\/strong> and <strong>pair trading<\/strong> are subject to applicable securities market rules. Traders must follow the requirements for short selling, margins, position limits, and order execution.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Short selling:<\/strong> Short selling is permitted subject to applicable <a href=\"https:\/\/www.nseindia.com\" target=\"_blank\" rel=\"noopener\"><strong>NSE<\/strong><\/a> and regulatory requirements. Traders should check the latest eligible securities and applicable conditions before placing orders.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Margin requirements:<\/strong> Margin requirements depend on the security, position, market conditions, and applicable exchange rules. Therefore, avoid using a fixed percentage for every pair.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Position limits:<\/strong> Traders must follow applicable position limits and other restrictions for the securities they trade.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Intraday trading:<\/strong> Choosing an intraday structure does not remove applicable trading risks or regulatory requirements. Traders should understand settlement, margin, and position rules before trading.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\">For any specific platform, verify the applicable trading rules and margin requirements before placing orders.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"aioseo-getting-started-with-pair-trading-16\" class=\"wp-block-heading has-text-color has-link-color wp-elements-6b76c0425906d8d8f52c3abeaf5cd61c\" style=\"color:#023368\"><strong>Getting Started With Pair Trading<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Start by learning how <strong>pair trading<\/strong> works before considering live trades. Paper trading can help you understand how <strong>stock pairs<\/strong> and <strong>correlated securities<\/strong> behave over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">You can study historical price relationships and calculate a <strong>Z-score<\/strong> to assess how far a spread has moved from its historical range. However, no fixed Z-score guarantees a valid <strong>trading signal<\/strong> or profitable outcome.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Keep a record of your analysis and review the strategy&#8217;s results, costs, and risks. If you later consider live trading, understand the applicable margin, settlement, and market requirements first.<\/p>\n\n\n\n<a href=\"https:\/\/open.navia.co.in\/index-navia.php?utm_source=Organic&#038;utm_medium=blog&#038;utm_campaign=blog&#038;utm_content=statistical_arbitrage_CTA\" title=\"Analyse stock pairs on the Navia All in One App\"><img decoding=\"async\" src=\"https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-Aug-17-2026-06_03_47-P-100kb.jpg.jpeg\" alt=\"Analyse NSE stock pairs and market data on the Navia All in One App\" style=\"width:100%;max-width:700px;height:auto;display:block;margin:1.5em auto\"><\/a>\n\n\n\n<h2 id=\"aioseo-common-mistakes-in-pair-trading-18\" class=\"wp-block-heading has-text-color has-link-color wp-elements-c3331e49993d2e5d104b2aa70e32b4be\" style=\"color:#023368\"><strong>Common Mistakes in Pair Trading<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Do not skip <strong>backtesting<\/strong> when evaluating a <strong>pair trading<\/strong> strategy. Historical relationships can change, and <strong>correlated securities<\/strong> may move apart for extended periods.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Cointegration<\/strong> can also weaken or break over time. Therefore, traders should regularly review their assumptions and strategy performance. Trading costs, including <strong>NSE trading<\/strong> charges, can also affect overall results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Keep detailed records of each trade and account for applicable costs. This can help <strong>retail traders<\/strong> evaluate strategy performance more realistically without assuming that past relationships will continue.<\/p>\n\n\n\n<h2 id=\"aioseo-conclusion-20\" class=\"wp-block-heading has-text-color has-link-color wp-elements-0cf6bad6ea43fec2bf64a802690cb30b\" style=\"color:#023368\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Statistical arbitrage<\/strong> and <strong>pair trading<\/strong> involve strategies that use relationships between <strong>stock pairs<\/strong> and <strong>mean reversion<\/strong>. However, these strategies carry risks, and historical relationships may change over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\">Traders can use <strong>cointegration<\/strong>, <strong>backtesting<\/strong>, and <strong>trading signals<\/strong> to evaluate potential strategies. They should also consider transaction costs, margin requirements, liquidity, and applicable <a href=\"https:\/\/www.sebi.gov.in\" target=\"_blank\" rel=\"noopener\"><strong>SEBI rules<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"line-height:1.8;text-align:justify\"><strong>Market opportunities<\/strong> may arise when <strong>price divergence<\/strong> occurs between related securities. However, no strategy guarantees profits. The <strong>Navia All-in-One App<\/strong> provides market data and trading tools that can support analysis of <strong>NSE trading<\/strong> activity.<\/p>\n\n\n\n<h3 style=\"color:#ec4d37\">Key Takeaways<\/h3>\n<ul style=\"margin:1em 0;line-height:1.9\">\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Statistical arbitrage<\/strong> looks at relative price relationships between <strong>correlated securities<\/strong> rather than market direction, but historical relationships may change due to company, sector, or market factors.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\">A correlation above 0.7 does not guarantee that prices will converge again, and correlation alone does not show that two securities will continue moving together.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Cointegration<\/strong> does not prove that prices will always converge, and a chosen <strong>Z-score<\/strong> level does not guarantee a profitable trade.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\">Fixed thresholds such as a 1.5 profit factor or 45% win rate do not suit every strategy, and historical results cannot guarantee similar outcomes in live markets.<\/li>\n<li style=\"margin-bottom:0.8em;line-height:1.8\"><strong>Pair trading<\/strong> is subject to applicable requirements for short selling, margins, position limits and order execution, and a <strong>market neutral<\/strong> structure does not eliminate market or strategy-specific risks.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>DID YOU FIND THIS INTERESTING?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-8f761849 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\"><strong>We&#8217;d love to hear from you &#8211;<\/strong> <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/form.typeform.com\/to\/bpQ8ZlDc?typeform-source=navia.co.in\"><img decoding=\"async\" width=\"300\" height=\"64\" src=\"https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2025\/01\/Yes-No-Button.png\" alt=\"yes or no feedback form\" class=\"wp-image-8335\" style=\"max-width:100%;height:auto\" srcset=\"https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2025\/01\/Yes-No-Button.png 300w, https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2025\/01\/Yes-No-Button-150x32.png 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<h2 id=\"aioseo-frequently-asked-questions-22\" class=\"wp-block-heading has-text-color has-link-color wp-elements-c1a8858af3849ec3bf6296bae8ecd179\" style=\"color:#023368\"><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">How much capital is required to start pair trading?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">There is no universal capital requirement for pair trading. The amount required depends on factors such as the securities selected, position sizes, applicable margin requirements, transaction costs and the trading approach used. Investors should understand the applicable risks and costs before considering the strategy.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">How long is a pair trade typically held?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">The holding period can vary depending on the strategy, securities selected, market conditions and the behavior of the price spread. There is no fixed timeframe within which a price divergence will necessarily reverse.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">When is a pair trade considered?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Statistical arbitrage strategies may use statistical measures such as Z-scores to identify deviations in a spread. The interpretation and thresholds used can vary by methodology. A statistical signal does not guarantee that the spread will revert.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">What is the biggest risk in pair trading?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Mean reversion may not occur as expected, and relationships between securities can change over time. Factors such as corporate events, changes in fundamentals and market conditions can affect the relationship between a pair.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">Can I backtest a pair trading strategy?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Yes. Backtesting can be used to study how a strategy would have behaved using historical data. However, historical results do not guarantee future performance, and statistical relationships identified in historical data may change.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">What correlation is required for pair trading?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">There is no single correlation threshold that is appropriate for every pair trading strategy. Correlation measures how securities have moved together historically, while cointegration examines a different statistical relationship. Both should be evaluated in the context of the strategy and data used.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">How do I identify potentially cointegrated stock pairs?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Statistical tests such as the Engle-Granger methodology can be used to examine whether a long-term statistical relationship exists between securities. Results depend on the data, methodology and period analysed.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">Is pair trading legal in India?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Pair trading and statistical arbitrage are strategies that involve buying and selling securities, subject to applicable market rules, exchange regulations, SEBI requirements, margin requirements and restrictions on short selling. Investors should be aware of the rules applicable before trading.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">What is a good profit factor for pair trading?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">There is no universally applicable profit-factor or win-rate threshold that guarantees a successful strategy. Historical performance metrics should be evaluated alongside drawdowns, transaction costs, market conditions and other risk measures.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">How often should stock pairs be re-evaluated?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">The statistical relationship between securities can change over time. The appropriate review frequency depends on the methodology, securities and timeframe being analysed. Historical relationships should be periodically reassessed rather than assumed to remain constant.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">Can leverage be used in pair trading?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">The availability and amount of margin depend on the securities, trading segment, applicable exchange and regulatory requirements. Leverage can increase both potential gains and losses, so investors should understand applicable margin requirements and risks before using it.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\" style=\"background:#f1f1f1;border-radius:4px;margin-bottom:10px\">\n<summary style=\"font-weight:600;font-size:17px;color:#1a2332;cursor:pointer;padding:16px 20px\">How is trading signal strength measured?<\/summary>\n\n<p class=\"wp-block-paragraph\" style=\"padding:0 20px 18px 20px;line-height:1.8;color:#333;margin:0\">Z-score is one statistical measure that can be used to assess how far an observation is from its historical mean. Different strategies may use different thresholds and methodologies. A higher Z-score does not by itself guarantee that a price spread will revert.<\/p>\n\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:13px;line-height:1.6;color:#777\"><strong>DISCLAIMER:<\/strong> This article is for educational purposes only. It does not constitute investment or trading advice. Navia Markets Ltd does not recommend <strong>statistical arbitrage<\/strong> or <strong>pair trading<\/strong> strategies and does not guarantee profits. <strong>Statistical arbitrage<\/strong> and <strong>pair trading<\/strong> involve substantial risk, including potential losses exceeding capital deployed. <strong>Market opportunities<\/strong> may not persist. <strong>Backtesting<\/strong> results may not replicate live performance. <strong>Retail traders<\/strong> must understand the risks, test thoroughly, and only trade with capital they can afford to lose. SEBI-registered advisers can provide personalized guidance. Understand margin calls, shorting rules, and position limits before beginning. Past performance does not indicate future results.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Statistical arbitrage looks for stock pairs that have historically shown related price movements. Traders monitor these relationships for periods when prices diverge. They may then use trading strategies based on an expected convergence. Retail traders can study such strategies using NSE trading data, statistical tools, and suitable risk controls. &#128161; Quick AnswerStatistical arbitrage looks for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[16],"tags":[553,781,788,282,1242],"class_list":["post-19559","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trading","tag-algorithmic-trading","tag-backtesting","tag-pairs-trading","tag-short-selling","tag-statistical-arbitrage"],"aioseo_notices":[],"featured_image_src":"https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2026\/08\/Statistical-Arbitrage_-100kb.jpg.jpeg","author_info":{"display_name":"Navia Markets","author_link":"https:\/\/navia.co.in\/blog\/author\/tradeplusonline\/"},"jetpack_featured_media_url":"https:\/\/navia.co.in\/blog\/wp-content\/uploads\/2026\/08\/Statistical-Arbitrage_-100kb.jpg.jpeg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/posts\/19559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/comments?post=19559"}],"version-history":[{"count":1,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/posts\/19559\/revisions"}],"predecessor-version":[{"id":19560,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/posts\/19559\/revisions\/19560"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/media\/19558"}],"wp:attachment":[{"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/media?parent=19559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/categories?post=19559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/navia.co.in\/blog\/wp-json\/wp\/v2\/tags?post=19559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}