thanks @TheBigShort
The expected 4.3 dollar move for earnings is aproximated, and probably very bad aproximated. In fact it is the first time I look at this.
From TOS I get, for HD,
1) 15 FEB , 7 dte , iv= 20.20 price range= +/- 4.31
2) 22 FEB , 14 dte , iv= 18.64 p.r = 5.51
3) 01 MAR ...