Straddle premium stretch sell
This intraday option-selling strategy watches the combined premium of the NIFTY at-the-money straddle minute by minute and compares it with its own average so far that day. It sells the straddle when the premium looks stretched, 5% or more above that average, or when it slips to a new low for the day as time decay takes hold. Each trade has a 10% stop and a 20% target on the combined premium.How it trades
Results
PRE-BUILT · DEFAULTSWhere it made and lost money
As a short straddle with a tight 10% stop, it needs a still market. Quiet sessions with a range under 0.75% made ₹1,11,536 over 167 trades with a 70% win rate, as the premium decayed into the 20% target or the 15:15 exit. Any real movement hurt: trend days lost ₹36,606 over 141 trades and choppy days ₹44,600 over 121, because a modest index move lifts the straddle 10% and stops it out, often more than once a day. Weekly expiry days, with the fastest decay, made ₹31,859 over 149 trades. Entries with India VIX above 14.5 lost ₹4,956 over 115. Figures are before costs.
About this strategy
- From 09:16, every minute, record the combined price of the call and put at the strike nearest the money in the nearest NIFTY weekly expiry, and keep a running average of all earlier minutes.
- Between 09:20 and 14:30, sell one lot each of that ATM call and put at the first minute the premium is at least 5% above its running average, or below every earlier minute of the day.
- Stop out if the combined premium rises 10% above the entry premium.
- Take profit if it falls 20% below the entry premium.
- After an exit, look for the next trigger; at most three trades a day and one open at a time.
- Close anything still open at 15:15.
Why traders use it
Straddle sellers want to sell when premium is relatively rich and decay is likely. Comparing the live premium with its own intraday average gives a simple, self-adjusting yardstick: a spike above the average may revert, while a fresh low shows decay already under way. Fixed percentage stops and targets keep each trade small and mechanical, which suits traders who want to run the same rule every day.
The year in plain words
With default settings on NIFTY from 1 Oct 2025 to 30 Sep 2026, the strategy took 433 trades, won 48% and made ₹30,827 before costs, a profit factor of 1.11. The tight 10% stop ended 207 trades, 78 reached the 20% target and 148 closed at 15:15. The last three months were strong, together over ₹37,000, while October and January each lost about ₹11,000. With two legs and up to three trades a day, ₹20 per order and bid-ask slippage turned the year into a ₹36,380 loss with a ₹64,206 drawdown.
What the settings do
Risks
- A 10% stop on a short straddle is tight and is hit by ordinary intraday swings.
- Up to three trades a day of two legs each makes costs decisive; a profit before costs became a loss after costs.
- A sudden spike can jump past the stop, making the loss larger than 10%.
- The new-low trigger fires early on many days, so the strategy is often short premium from the morning.
Who it suits
Intraday option sellers with margin for a short straddle who can automate minute-by-minute monitoring and want to study premium-based triggers, keeping in mind that costs decided the outcome in this test.
Questions traders ask
What is straddle premium mean reversion?
It treats the combined price of the ATM call and put as a series to trade. When the premium rises well above its recent average, the bet is that it will fall back as volatility settles and time decays. Here the average is the running mean of the day's earlier minutes.
Is this straddle premium strategy profitable?
From 1 Oct 2025 to 30 Sep 2026 on NIFTY it made ₹30,827 before costs but lost ₹36,380 after ₹20 per order and bid-ask slippage, statutory charges excluded. Past results do not guarantee future ones.
Why does it also sell on a new day low?
A new low in the straddle premium shows time decay is winning and the market is calm. Selling then is a momentum bet that the decay will continue. It mixes two ideas, selling spikes and selling weakness, which is worth knowing when judging the results.
Which expiry does it trade?
The nearest NIFTY weekly expiry, which falls on Tuesday. On expiry day the premium is small but decays fastest, and in this test those days were among the more profitable.