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920 bank nifty short straddle stopped working?
  • May 15, 2022
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920 short straddles is a common and most simplified option selling Strategy that has been widely used by many intraday traders. The rules of this intraday strategy is

Short ATM Call and Put at 9:20 am with a fixed stop loss say 25%, 35% etc.

When stop loss of one leg is hit, exit it and continue to hold the other leg till eod. This strategy makes money as long as the market moves in one-sided direction, since the other leg makes money when the decay happens.

This strategy has become widely popular after the rise of many no code platforms, which makes the back testing easier. Without any coding or intraday data, people just run different combinations and ended up trading different varieties of 920 straddle strategy. But the last few months volatility in the markets has affected lot of such strategies.

Here’s a detailed analysis of 920 Straddle with 25% SL. This analysis would show which days are max profitable, how it behaves on gap days and how it behaves on different VIX days.

Here’s day wise total profits, Wednesday are the days it has generated highest profits compared to all other days and Friday being the least profitable day.


Here’s day wise average profits, obviously Wednesday are the days it has generated highest average profits compared to all other days and Friday being the least profitable day.

Even the live profits after all charges generated through 920 straddle trading bots at also reflected Fridays are not profitable when you incur all charges. Wednesday being the most profitable day. Live profits are shown here



Here are total profits made during gaps, when day open is greater than previous day high, Day open < Prev day low and flat days. Irrespective of gaps, its able to generate profits over all. Even the avg profits denotes the same



Here’s the VIX analysis with respect to 920 straddles over all profits. There is a large misconception that high vix would end up in loss, but the results shows that even in High Vix 920 straddle made money.

One important thing to note with 920 straddle is most of its profits will come from few trades. out of 1300 trades in last 5 years, If I remove top 10% of the trades, that is if I remove 130 trades, then the overall results turns negative.

But that’s how a typical breakout system works, returns are always non-linear. You can’t expect steady returns from such strategies, there will always be periods of prolonged drawdown. But that’s when people thrown in the towel, thinking the strategy doesn’t work anymore. People who used OTM hedge for margin benefit for such strategies would have suffered more, since their drawdown would have been much higher. The one who sails through such rough phase with less damage eventually reap the benefits, and that’s possible only with robust risk management and money management rules.

Premium of ATM options varies based on each day, the below table shows what’s the average ATM option premium on day wise, what would be total points if 25% stop loss is hit on any leg, what’s the loss per lot, what’s the loss per lot if both leg stop loss gets hit and what’s the percentage of loss we face with respect to the capital.

As you can see, a person who is trading same quantity throughout the week would suffer more if his stop loss gets often hit on Fridays, because of higher premium he would lose more. But if he could change his lot size based risk per trade , then he controls the drawdown to a certain extent. When a strategy goes out of sync with the markets, it might take few days, few weeks or even few months to come out of drawdown, in such cases trading with right position sizing would do less damage and will make us sail through drawdown phase.

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9 comments on “Is 920 Straddle stopped working?

  1. There should be some system from squreoff that display every day beside 9:20 straddle tab for different position sizing.

  2. Should we reduce position sizing on fridays. Should fixed lot traders adapt this strategy of changing position size on fridays and mondays?

  3. Option premiums increase sharply (25% to 50%) in volatile days with higher VIX. In this situation if we trade short straddle, then maximum risk per trade would be quite higher compared to normal days. In such case, trader should either reduce lot size or sell strangle instead of straddle.

  4. 9-20 Banknifty straddle strategy is under water since last 5 months, while Nifty straddle is doing very well during the same period. Any reason ? How long anyone can wait to revive banknifty ?

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