Short Put
Sell a put to collect premium when you expect the market to stay flat or rise.
The short put (naked or cash-secured put) involves selling a put option to collect premium. It profits when the underlying stays above the strike through expiry, benefiting from time decay and IV contraction. It carries substantial downside risk if the market crashes, making it an intermediate strategy that requires margin and discipline.
Strategy Structure
Sell 1 OTM Put option to collect premium, expecting the underlying to stay above the strike.
Profit & Loss Profile
Market Outlook
Bullish to neutral — expecting the underlying to stay above the strike.
When to Use
- You expect the market to hold above a clear support
- IV is elevated and put premiums are rich
- You want to enter a long position at a lower effective price (cash-secured put)
- Post-event plays expecting IV crush and a stable-to-up market
When to Avoid
- Before bearish catalysts or in a fragile, falling market
- When India VIX is low (premiums too small for the risk)
- If you lack margin or cannot manage a sharp gap-down
- In clearly downtrending markets
Ideal Conditions
- Bullish-to-neutral view with strong support below
- High IV (elevated put premium from fear) that you expect to contract
- Weekly expiry for fast theta decay
- Comfortable being assigned / taking exposure at the strike
Greeks Impact
Positive delta — profits as the underlying rises or stays flat. Delta grows as the put moves ITM against you.
Negative gamma — losses accelerate as the underlying falls toward and below the strike.
Positive theta — time decay works in your favor, fastest into expiry.
Negative vega — profits from IV contraction; benefits when the fear premium deflates.
Nifty Example
Setup: Sell Nifty 24200 PE at ₹65. Lot size = 75 units. Premium collected = ₹65 × 75 = ₹4,875. Breakeven = 24135. Margin required ≈ ₹1,15,000 per lot.
If profitable: If Nifty stays above 24200 at expiry, the put expires worthless and you keep the full ₹4,875.
If loss: If Nifty falls to 23900, the 24200 PE is worth ₹300. Loss = (₹300 - ₹65) × 75 = ₹17,625, growing with any further decline.
Adjustments & Risk Management
- Roll the put down and out to a lower strike and later expiry if tested
- Buy a further OTM put to define risk, converting to a bull put spread
- Set a stop at 1.5x-2x the premium received
- Close at 50% of max profit to remove gamma risk near expiry
The Cash-Secured Put for Entry
A favourite use of the short put is to get paid while waiting to buy. If you want exposure to Nifty but think 24500 is slightly expensive, selling a 24200 put for ₹65 means you either keep the premium (if Nifty stays up) or effectively buy in around 24135 (strike minus premium) if assigned — a better entry than the current spot.
This works only if you genuinely want the long exposure and have set aside the cash/margin to take it. Selling puts on indices or stocks you would never want to own is how this strategy turns into a disaster during a crash.
Crash Risk and Gap-Downs
The short put's weakness is the sharp gap-down. Indian indices can fall 2-4% overnight on global risk-off events, and a put seller faces the full move from the open. The premium collected is small comfort against a 1,000-point Nifty gap.
This is why the bull put spread — buying a cheaper, lower put for protection — is the preferred defined-risk version for most traders. Reserve the naked short put for high-IV environments where the fat premium genuinely compensates for the tail risk, and always size positions assuming a worst-case gap.
Related Strategies
See Short Put in Real-Time
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