VIX-routed straddle
This intraday short straddle lets India VIX decide how to trade. Yesterday's VIX close sorts each day into a low, mid or high volatility regime, and each regime has its own entry time and stop. On calm days the straddle goes on at 10:45 with a tight 20-point stop; on busier days it waits until 11:45 or 12:45 and allows 60 points. Everything closes at 15:15.How it trades
Results
PRE-BUILT · DEFAULTSWhere it made and lost money
Unlike straddles with a stop on each leg, this one has a single stop on the combined premium, so it behaves like a classic range trade. In this test quiet sessions earned ₹64,378 over 108 trades with a 76% win rate, while trend days lost ₹66,029 over 70 trades: a one-way move lifts the losing leg faster than the other decays, and the combined stop closes both legs together, so nothing is left to recover. Days after India VIX closed above 14.5 lost ₹35,643 over 69 trades even with the later entry and wider stop, and trades below the 20-day average lost ₹51,053.
About this strategy
- Read the previous session's India VIX close. Below 12 is the low regime, 12 to under 16 is mid, and 16 or above is high.
- Low regime: enter at 10:45 with a 20-point stop. Mid regime: enter at 11:45 with a 60-point stop. High regime: enter at 12:45 with a 60-point stop.
- At the regime's entry time, sell one lot each of the ATM call and ATM put of the nearest NIFTY weekly expiry.
- The stop is on the straddle as a whole: if the call and put together cost the stop's points more than the combined premium sold, both legs are closed.
- If no stop is hit, close both legs at 15:15. One trade a day, no re-entry.
- An optional setting can skip one weekday; by default every day is traded.
Why traders use it
A straddle sold on a calm day and one sold on a nervous day carry very different risks, yet many rule sets treat them identically. Using VIX to set the entry time and stop size tries to match the trade to the day: later entries on volatile days let the morning move play out first, and wider stops give the position room when swings are naturally bigger. The approach is popular with traders who want one systematic straddle that adapts without daily judgement calls.
The year in plain words
From 1 Oct 2025 to 30 Sep 2026 on NIFTY with default settings, the strategy traded 246 days and won 55% of them, but lost ₹20,635 before costs, a profit factor of 0.90. Losses averaged ₹1,852 against wins of ₹1,370. 176 trades ran to 15:15; 41 hit the tight 20-point stop and 29 the 60-point stop. October, December and July to September made money, but February to June lost every month, with March the worst at ₹14,211. After ₹20 per order and bid-ask slippage the loss grows to ₹51,652.
What the settings do
Risks
- The VIX bands, entry times and stops were originally chosen by testing many combinations on past data, so they may be fitted to that history.
- Yesterday's VIX can be a poor guide to today's moves, especially around news or global events.
- A short straddle has unlimited risk between the entry and the stop, and stops can fill worse than the trigger on fast moves.
- The pre-cost loss more than doubles once trading costs are included.
Who it suits
Traders interested in volatility-aware option selling who want to test how entry timing and stop size interact with VIX, and who have the margin to sell a NIFTY straddle every day.
Questions traders ask
How does India VIX change the trade?
Yesterday's VIX close picks one of three regimes. Below 12 the straddle is sold at 10:45 with a 20-point stop; between 12 and 16 at 11:45 with a 60-point stop; at 16 or above at 12:45 with a 60-point stop. Strikes and exit time are the same in all regimes.
Is the stop on each leg or on the whole straddle?
On the whole straddle. The call and put prices are added together, and if that total rises by the stop's number of points above what was collected, both legs are closed together. Neither leg is stopped on its own.
Is the VIX-routed straddle profitable?
In this backtest on NIFTY from 1 Oct 2025 to 30 Sep 2026 it lost ₹20,635 before costs and ₹51,652 after ₹20 per order and bid-ask slippage, with a ₹52,618 maximum drawdown before costs. Past results do not guarantee future results.
Why might these settings be overfitted?
The original rule set picked its entry times and stops from a large grid of combinations tested on the same history. Settings chosen that way tend to look good on that data and weaker afterwards, which is one possible reason the year tested here lost money.