When a listed company on the NSE announces quarterly results, traders often expect a sharp move in the stock or index. Two common neutral option strategies used to trade such events are the straddle and the strangle. Both let you profit from big moves regardless of direction, but they differ in cost, risk profile and the size of move needed to profit.
A straddle means buying (or selling) a call and a put at the same strike, usually the nearest at-the-money strike. For example, if a stock trades at Rs. 1,000, buying a 1,000 strike call and a 1,000 strike put at premiums of Rs. 40 each costs Rs. 80 total. Your breakevens at expiry are 1,080 on the upside and 920 on the downside. You need the stock to move more than Rs. 80 from 1,000 by expiry to make money as a buyer. As a seller, you collect Rs. 80 but face unlimited upside risk and large downside risk, plus large margin needs on NSE SPAN.
A strangle uses out-of-the-money strikes: buy (or sell) an OTM call and an OTM put with different strikes. If the same stock at Rs. 1,000 has a 1,050 call at Rs. 25 and a 950 put at Rs. 25, the total premium is Rs. 50. Lower cost than a straddle, but breakevens are wider: upside breakeven 1,100 and downside 900. You need a bigger move to profit, but initial outlay is smaller.
Why traders choose these around earnings
- Earnings can create asymmetric, large moves; both strategies are direction-neutral.
- Buyers seek a big move (plus IV) to overcome premium cost; sellers hope for small moves and an IV collapse after results.
- Implied volatility (IV) usually rises before earnings. This causes option premiums to be expensive. After results, IV often falls sharply ("IV crush"), which can hurt buyers and favor sellers.
Key factors to decide which to use
- Implied volatility level: High pre-earnings IV makes buying expensive; selling can look attractive but be aware of tail risk.
- Expected move magnitude: Use straddles when you expect a moderate-to-large move; use strangles when you want cheaper entry for a larger move.
- Risk tolerance and margin: Buying options limits risk to premium paid. Selling options exposes you to much larger losses and higher margin requirements on NSE.
- Time to expiry: Shorter expiries increase Theta (time decay). Buying very short-dated straddles is risky if the move hasn’t happened quickly.
Simple trade checklist before placing a straddle/strangle
Example scenarios (rounded Indian context)
- Buy straddle: Stock Rs. 1,000, ATM premiums Rs. 40 + 40 = Rs. 80. Need >8% move to breakeven.
- Buy strangle: Stock Rs. 1,000, 1,050 call Rs. 25 + 950 put Rs. 25 = Rs. 50. Need >10% move to breakeven.
- Sell straddle: Collect Rs. 80 but be ready for large margin and possible huge losses if a big surprise occurs.
Use these strategies with care. For most retail traders, buying defined-risk strategies (long straddles/strangles) is simpler and less dangerous than naked selling. If you sell, consider defined-risk alternatives (like iron condors) or maintain strict hedges. Always test ideas on paper or small sizes first and keep position sizing disciplined in the Indian market.
A straddle means buying (or selling) a call and a put at the same strike, usually the nearest at-the-money strike. For example, if a stock trades at Rs. 1,000, buying a 1,000 strike call and a 1,000 strike put at premiums of Rs. 40 each costs Rs. 80 total. Your breakevens at expiry are 1,080 on the upside and 920 on the downside. You need the stock to move more than Rs. 80 from 1,000 by expiry to make money as a buyer. As a seller, you collect Rs. 80 but face unlimited upside risk and large downside risk, plus large margin needs on NSE SPAN.
A strangle uses out-of-the-money strikes: buy (or sell) an OTM call and an OTM put with different strikes. If the same stock at Rs. 1,000 has a 1,050 call at Rs. 25 and a 950 put at Rs. 25, the total premium is Rs. 50. Lower cost than a straddle, but breakevens are wider: upside breakeven 1,100 and downside 900. You need a bigger move to profit, but initial outlay is smaller.
Why traders choose these around earnings
- Earnings can create asymmetric, large moves; both strategies are direction-neutral.
- Buyers seek a big move (plus IV) to overcome premium cost; sellers hope for small moves and an IV collapse after results.
- Implied volatility (IV) usually rises before earnings. This causes option premiums to be expensive. After results, IV often falls sharply ("IV crush"), which can hurt buyers and favor sellers.
- If you expect a big move but not the direction: consider buying a straddle for a tighter breakeven, or a strangle to reduce premium if you are less sure about the required magnitude.
- If you expect limited movement: selling straddles/strangles can earn premium but requires strong risk controls because potential losses can be large.
Key factors to decide which to use
- Implied volatility level: High pre-earnings IV makes buying expensive; selling can look attractive but be aware of tail risk.
- Expected move magnitude: Use straddles when you expect a moderate-to-large move; use strangles when you want cheaper entry for a larger move.
- Risk tolerance and margin: Buying options limits risk to premium paid. Selling options exposes you to much larger losses and higher margin requirements on NSE.
- Time to expiry: Shorter expiries increase Theta (time decay). Buying very short-dated straddles is risky if the move hasn’t happened quickly.
Simple trade checklist before placing a straddle/strangle
- Check current IV vs. historical IV for that stock or Nifty — high IV means premiums are expensive.
- Estimate a reasonable move from guidance, analyst expectations, or past earnings reactions.
- Decide buyer vs seller based on whether you expect big move (buy) or small move (sell).
- Use position sizing: limit each earnings trade to a small percentage of capital.
- Set clear exit rules: target profit, stop-loss, or hedge if the trade runs against you.
- Prefer liquid strikes to avoid wide bid-ask spreads, and watch for low open interest which can hurt execution.
Example scenarios (rounded Indian context)
- Buy straddle: Stock Rs. 1,000, ATM premiums Rs. 40 + 40 = Rs. 80. Need >8% move to breakeven.
- Buy strangle: Stock Rs. 1,000, 1,050 call Rs. 25 + 950 put Rs. 25 = Rs. 50. Need >10% move to breakeven.
- Sell straddle: Collect Rs. 80 but be ready for large margin and possible huge losses if a big surprise occurs.
Use these strategies with care. For most retail traders, buying defined-risk strategies (long straddles/strangles) is simpler and less dangerous than naked selling. If you sell, consider defined-risk alternatives (like iron condors) or maintain strict hedges. Always test ideas on paper or small sizes first and keep position sizing disciplined in the Indian market.