Stock mock doubt in backtesting

General
1

hi while backtesting in stock mock what is ATM + 100 or ATM - 100?
i think ATM + 100 is otm of 100 points and ATM - 100 is 100 points itm.Can anybody explain please.

2

It’s simply 100 points away strikes from ATM (both sides)

3

ATM + 100 is otm for call
ATM- 100 is otm for put

4

Yes that’s correct…

E g. Nifty is at 25000. Then 25100 CE and 24900 PE

5

Jst chk d backtest file