For trading the next day, do the following prev day evening:
1) Calculate daily range (High - Low)/Low of all FNO underlyings (DR)
2) Calculate 10 period MA of DR. (ADR)
3) Calculate 0.65 X ADR. (T_ADR)
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4) Select stocks that satisfy the condition DR < T_DR.
5) Calculate the ratio DR / T_DR and sort 4 in increasing order.
These are the stocks that have better chances of trending the next day.
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Usually you will get not more than 8 - 10 stocks.
Concentrate on top 5 and apply your intraday strategy to these stocks.
Note : This is a method ONLY to select stocks for intraday AND NOT A TRADING STRATEGY AS SUCH.