Thanks Champ for your response.
The loss occurred on regular Trading account on Fidelity Platform. I did call fidelity last year for this as it did not show up on my 1099 form they said, you can just declare it with the statement showing it is loss. No one really answered it on their side.
One person on call from fidelity said, you can declare it anytime in next few years as I presumed since all this was happening in Feb 2020, (presumably that is when broker bought that loss from me as Champ explained), so now this loss will show up on my 2020 taxable 1099 form, hence i did not declare it on 2019 returns hoping will be easier to do in 2020 return, but again loss does not show up on 2020 1099 form ...
