Using this functionality the percentage value of the current spot price is calculated and strikes with premium closest to the calculated percentage value are selected.
Example:
4 legs are configured in the strategy settings, as follows:
Sell - % of Underlying - 1% - CE
Sell - % of Underlying - 1% - PE
Buy - % of Underlying - 0.5% CE
Buy - % of Underlying - 0.5% PE
The spot price at the Start Time is 24622.15
Strike selection as follows:
Leg 1
Sell - % of Underlying - 1% - CE
= 1% of 24622.15 = 246.22
= Strike selected with premium closest to 246.22
= Strike selected - 24450 CE which has a premium of 251.15 at algo Start time.
Leg 2
Sell - % of Underlying - 1% - PE
= 1% of 24622.15 = 246.22
= Strike selected with premium closest to 246.22
= Strike selected - 24750 PE which has a premium of 230.4 at algo Start time.
Leg 3
Buy - % of Underlying - 0.5% CE
= 0.5% of 24622.15 = 123.11
= Strike selected with premium closest to 123.11
= Strike selected - 24700 CE which has a premium of 115 at algo Start time.
Leg 4
Buy - % of Underlying - 0.5% PE
= 0.5% of 24622.15 = 123.11
= Strike selected with premium closest to 123.11
= Strike selected - 24550 PE which has a premium of 123.15 at algo Start time.