TOS Implied Volatility and Movement

[yalgaar]

I got a bit confused about Implied Volatility and suggested movement for a certain Option Chain on TOS platform. Can someone help me understand the relationship between the 2?

Example:

Lets look at the 11 May Chain below. It shows that the IV is around 33.26%. But the suggested move for this is around 158. How are these 2 numbers related? Can I derive 1 from the other?

Based on the formula I am aware of it should be 2836 X 33.26% X sqrt of 15 / sqrt of 365 = 191

Why does it show 158 instead of 191? 

 

Edited April 26, 2020 by yalgaar