Straddle stop and reverse
Stop and reverse adds a twist to the intraday short straddle. The ATM call and put are sold at 09:20 with a 30% stop on each leg, but when a leg is stopped, the strategy does not just accept the loss: it buys an option of the same type, betting that the move which hurt the short side will keep going. The idea is to turn a losing breakout day into a winning one.How it trades
Results
PRE-BUILT · DEFAULTSWhere it made and lost money
The day's character decided the result exactly as the reversal rule implies. Trend days that closed near the high or low made ₹2,20,964 over 217 trades: one short leg stops, the bought replacement rides the trend, and the other short leg decays. Choppy days with a wide range that closed mid-range lost ₹2,01,164 over 220 trades, because a swing stops a short leg, the reversal is bought near the extreme, and the swing back stops that too. Quiet sessions lost ₹56,548 over 309 trades, as small premiums and occasional stops did not add up. Expiry days made ₹25,654 over 177 trades.
About this strategy
- At 09:20, sell one lot each of the ATM call and ATM put of the nearest NIFTY weekly expiry.
- Give each short leg its own stop 30% above its sale price.
- If a short leg is stopped before 14:30, immediately buy one lot of the same option type at the new ATM strike (a stopped call is replaced by a bought call).
- The bought option has its own stop 20% below its purchase price and no target by default.
- Only one reversal is allowed per side per day; a stopped long is not reversed again.
- Close everything still open at 15:15.
Why traders use it
A short straddle's worst days are strong one-way moves. Flipping the stopped leg into a bought option means those same days can produce a profit, since the long option rides the trend that caused the stop. It is a popular feature on Indian algo platforms because it answers a common frustration of option sellers: watching the market run away after a stop is hit. On quiet days nothing changes and the straddle simply decays as normal.
The year in plain words
On NIFTY from 1 Oct 2025 to 30 Sep 2026 the strategy logged 752 one-leg trades, as each short leg and each reversal counts separately. Only 33% made money; 274 short legs hit their stop and 188 of the bought reversals were stopped too, often on the same choppy day. Net P&L was a ₹40,794 loss before costs and ₹1,09,914 after ₹20 per order and slippage. April made ₹48,790 when trends followed through, but March lost ₹34,555 and five months lost over ₹13,000 each.
What the settings do
Risks
- The reversal buys after the move has already happened, often near a short-term extreme.
- On choppy days a side can lose twice, first on the short stop and then on the long stop.
- Up to four orders per side a day make the strategy sensitive to brokerage and spreads, which more than doubled its loss here.
- After a stop and reversal the position is strongly directional until 15:15.
Who it suits
Traders who already run intraday straddles with leg stops and want to test a rule for profiting from breakout days, with automation to place reversals instantly and margin for a short straddle.
Questions traders ask
What is stop and reverse in a short straddle?
When one sold leg hits its stop loss, the strategy buys an option of the same type instead of simply closing it. If the call is stopped because NIFTY rallied, it buys a call; if the put is stopped on a fall, it buys a put. The idea is to profit if the move continues.
Is the straddle stop and reverse strategy profitable?
In this NIFTY backtest from 1 Oct 2025 to 30 Sep 2026 it lost ₹40,794 before costs and ₹1,09,914 after ₹20 per order and bid-ask slippage, with a ₹1,05,287 drawdown before costs. Statutory charges are not included. Past results do not guarantee future ones.
What is the difference between reversing at once and reversing at cost?
With the reverse mode at once, the strategy buys the new at-the-money option immediately after the stop. With reverse at cost, it waits for the same strike to fall back to the price at which it was originally sold, then buys it, so the reversal only happens if the market pulls back first.
Why are there so many trades?
Each side of the straddle and each reversal is logged as its own trade. A day with no stops has two trades; a day where both sides stop and reverse has four. Over about 245 sessions this adds up to 752 trades.