18 July 2025
4 Minutes Read

What is Max Pain in Options Trading?

If you’ve ever looked at an how options trading works and wondered why prices seem to gravitate toward certain strike prices on expiry day — you’re not alone. What you’re witnessing may be the effect of Max Pain.

Let’s break it down in plain English.

💡 Quick Answer
Max Pain, also called the Option Pain Point, is the strike price where the combined value of all open call and put options is lowest — the level where option sellers lose the least and option buyers lose the most. You find it by assuming all out-of-the-money options expire worthless, multiplying OTM open interest by the premium lost at each strike, and picking the strike with the lowest total. On expiry day prices sometimes drift toward that level, though it is not assured. It works best with one to two days left to expiry and alongside OI shifts, volume and price action.

Max Pain (also called the Option Pain Point) is the strike price where the combined value of all open call and put options is lowest — i.e., where option sellers (usually institutions) lose the least, and option buyers (retail traders) lose the most.

On expiry day, prices sometimes tend to move closer to this level, though it is not assured.

Max Pain can help you estimate where the stock/index might settle on expiry.

It tells you where the largest concentration of unwinding or losses might occur — valuable info for traders. Pairing it with open interest analysis shows whether those positions are being built or unwound.

Since option sellers are usually large players (and more profitable), following Max Pain can show you where they’re positioned.

You’ll Need:

  • An option chain (with strike-wise Open Interest data for both Calls and Puts), available from your broker or from the NSE
  • A simple spreadsheet or calculator

Let’s say NIFTY is at 24,950.

StrikeCall OIPut OIMax Pain Loss (Simplified)
24,80012L14L₹55 Cr
24,90010L13L₹42 Cr
25,0009L10L₹39 Cr Lowest
25,1007L9L₹48 Cr

Here, Max Pain = 25,000, because total pain to buyers is lowest here — meaning sellers are safe, and price might settle near this.

Let’s walk through a detailed example on how to compute the max pain

Imagine a stock is trading around ₹100. Here’s some simplified Open Interest (OI) data for a few strike prices:

Strike PriceCall OI (Lots)Put OI (Lots)
₹951,000300
₹100800800
₹1056001,000

We’ll now compute the total loss to option buyers if the stock expires at each strike.

Call Buyers:

  • ₹95 CALL: In the money → 0 loss (they gain)
  • ₹100 CALL: OTM → loses full premium → 800 lots × ₹5 = ₹4,000 loss
  • ₹105 CALL: OTM → loses full premium → 600 × ₹10 = ₹6,000 loss

Total CALL Loss = ₹4,000 + ₹6,000 = ₹10,000

Put Buyers:

  • ₹95 PUT: ATM → 0 loss (they get full value)
  • ₹100 PUT: In the money → 0 loss
  • ₹105 PUT: In the money → 0 loss

Total PUT Loss = ₹0

Total Buyer Loss @ ₹95 = ₹10,000

Call Buyers:

  • ₹95 CALL: ITM → no loss
  • ₹100 CALL: ATM → 0 loss (break-even)
  • ₹105 CALL: OTM → loses full premium → 600 × ₹5 = ₹3,000

Total CALL Loss = ₹3,000

Put Buyers:

  • ₹95 PUT: OTM → loses full premium → 300 × ₹5 = ₹1,500
  • ₹100 PUT: ATM → 0 loss
  • ₹105 PUT: ITM → no loss

Total PUT Loss = ₹1,500

Total Buyer Loss @ ₹100 = ₹4,500

Call Buyers:

  • All are ITM → no loss

Total CALL Loss = ₹0

Put Buyers:

  • ₹95 PUT: OTM → full loss → 300 × ₹10 = ₹3,000
  • ₹100 PUT: OTM → full loss → 800 × ₹5 = ₹4,000
  • ₹105 PUT: ATM → break-even → no loss

Total PUT Loss = ₹7,000

Total Buyer Loss @ ₹105 = ₹7,000

Strike PriceTotal Buyer Loss
₹95₹10,000
₹100₹4,500 Lowest
₹105₹7,000

The strike with lowest total buyer loss is ₹100 — this would be identified as the Max Pain level in this example scenario.

In Simple Words:

For each possible expiry strike:

  • Assume all OTM options expire worthless.
  • Multiply OTM OI × premium lost (estimated or actual).
  • Sum for all strikes — the strike with lowest total loss = Max Pain
Open a free Navia demat account to track max pain and option chain data
TermMeaning
Max PainStrike where option buyers lose most & sellers lose least
Used ForExpiry day prediction, trading bias
Best UsedNear expiry, with price action and OI confirmation
Tool NeededOption Chain + basic calculator (or ready-made tool)

You don’t have to calculate it manually every time.

Some platforms, including Navia, offer option chain tools that display Max Pain levels and charts for easier tracking. Before you act on those levels, it is worth checking what an expiry-day options trade actually costs you in statutory charges.

Real Example of a Max pain Chart;

Source: niftytrader

Live Nifty max pain chart showing call and put open interest by strike price
  • Max Pain is not a guarantee, just a useful indicator.
  • Combine it with OI shifts, volume, and price action for better accuracy.
  • Works best when there’s 1–2 days left before expiry.

A useful companion signal is the combined premium of the ATM call and put, which tells you how much movement the market is still pricing in as expiry approaches. It also helps to know the position limits and monitoring rules that govern how large those open positions can get.

Max Pain gives a glimpse into how the big players (option writers) are positioned and how markets may behave around expiry. While it’s not a magic formula, it’s a smart addition to your trading toolbox — especially when paired with other indicators.

  • Max Pain is the strike where option buyers lose the most and option sellers lose the least, based on total open interest across calls and puts.
  • To calculate it, assume every out-of-the-money option expires worthless, multiply OTM open interest by the premium lost at each strike, and pick the strike with the lowest total.
  • In the worked example, total buyer loss was ₹10,000 at ₹95, ₹4,500 at ₹100 and ₹7,000 at ₹105, making ₹100 the Max Pain level.
  • It is an indicator, not a guarantee — prices only sometimes drift toward the level on expiry day.
  • It works best with one to two days left to expiry and read alongside OI shifts, volume and price action.

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