Very Similar to the existing ORB Function. Expected Move Deviations based on Open. I used 9:32 since that's the earliest "entry" time to anchor with mostly clean data. Catch the std deviation breakouts as entry opportunities for reversion/continuation based on opening option straddle pricing.

0-DTE Expected Move Trigger Rules:

2 user inputs: Deviation Multiplier, and until "input time".

3 Defined Options

Switch 1 (Above Price Deviation) [ +[input multiplier] STD Deviation from 9:32 til [input time] )

-- OHLC > (9:32 open + ((9:32 ATM straddle) * [input multiplier]))

Switch 2 (Below Price Deviation ) ( -[input multiplier] STD Deviation from 9:32 til [input time] )

-- OHLC < (9:32 open - ((9:32 ATM straddle) * [input multiplier]))

Switch 3 (Inside Deviation, non breach) ( [input multiplier] from between 9:32 til [input time] then trigger)

-- OHLC < (9:32 open + ((9:32 ATM straddle) * [input multiplier]))

&& OHLC > (9:32 open - ((9:32 ATM straddle) * [input multiplier]))

I've seen some interesting data on this, and would love to be able to backtest it.