VIX implied-move strangle
This positional strategy sells one NIFTY monthly strangle about two weeks before expiry, with strikes placed where India VIX says a one-standard-deviation move would reach by expiry. The idea is to let the market's own volatility gauge set the distance: wider strikes when fear is high, tighter when it is calm. The position is held to the monthly expiry with no stop by default.How it trades
Results
PRE-BUILT · DEFAULTSWhere it made and lost money
With only 12 trades, no condition has enough trades to call a best or worst, so treat every split as a hint. The clearest one is what the market did while the strangle was open: in the 7 months when NIFTY fell more than 1%, the trades made ₹44,795 and all won, while the 2 months with a rise of over 1% made ₹5,494 and included the year's only loss. The VIX-based strikes were wide enough that a moderate fall never reached the put, and falling markets tend to arrive with rising put premiums but faster time decay into expiry. One sharp move through a strike, which did not happen here, would change the picture.
About this strategy
- Wait for the first session with 15 or fewer calendar days (and at least 3) left to the NIFTY monthly expiry.
- At 15:15 that day, take the previous day's India VIX close and the month's futures price.
- Work out the expected move: futures price × VIX ÷ 100 × the square root of days left ÷ 365.
- Sell the first call strike at or above price plus that move and the first put strike at or below price minus it, one lot each.
- Optionally, close both legs if the loss reaches a set multiple of the credit; this stop is off by default.
- Hold to the monthly expiry and close at 15:15 that day; trade once per monthly contract.
Why traders use it
India VIX is an annualised estimate of how much NIFTY is expected to move, and scaling it to the days left gives a one-standard-deviation band that the index stays inside roughly two times out of three. Selling outside that band means the strikes adapt automatically to the mood of the market rather than sitting a fixed number of points away. Entering about two weeks out catches the faster part of time decay on monthly options while leaving some room before expiry.
The year in plain words
With default settings on NIFTY from 1 Oct 2025 to 30 Sep 2026, the strategy sold 12 monthly strangles and 11 made money, for ₹74,419 before costs. Every trade was held to the monthly expiry. The only loss, in October 2025, was ₹371, and the best month, April 2026, earned ₹12,623. Because it places just two orders in and two out each month, costs barely moved the result: ₹73,344 after ₹20 per order and bid-ask slippage. The honest caveat is the sample size: twelve trades in a year with no sharp break through either strike, and no stop to limit one if it comes.
What the settings do
Risks
- There is no stop by default, so a large move against one leg is carried in full to expiry.
- The position is held overnight for about two weeks and is exposed to gaps on global or domestic news.
- Twelve trades is a small sample; one bad month in a different year could outweigh the period shown here.
- Naked short options need substantial margin, which rises when volatility spikes.
Who it suits
Positional option sellers with enough margin for an unhedged monthly strangle who prefer one trade a month over daily management, and who accept that rare large losses are the price of a high win rate.
Questions traders ask
How do you calculate the expected move from India VIX?
Multiply the index level by VIX divided by 100 to get the yearly one-standard-deviation move, then scale it by the square root of days left divided by 365. With NIFTY at 25,000, VIX at 13 and 15 days left, that is about 25,000 × 0.13 × 0.2, or roughly 660 points.
Is the VIX strangle strategy profitable?
In this backtest on NIFTY from 1 Oct 2025 to 30 Sep 2026 it made ₹74,419 before costs and ₹73,344 after ₹20 per order and bid-ask slippage, winning 11 of 12 months. Statutory charges are extra, the sample is small and the position has no stop, so past results do not guarantee future ones.
Which expiry does it trade?
The NIFTY monthly expiry, the last Tuesday of the month, moved earlier if that day is a holiday. It enters roughly two weeks before and holds to that expiry, so it never trades the weekly contracts.
Can I add a stop loss?
Yes. Set “Stop mult” above zero and both legs close once the loss reaches that multiple of the credit received. The default run had no stop, so try a few values to see how often it would have fired and what it would have cost.