I'm not sure the timing of the income/loss is relevant (but this isn't exactly in my wheelhouse).  Take a look at IRC 1377:

https://www.law.cornell.edu/uscode/text/26/1377

And regulations:

https://www.law.cornell.edu/cfr/text/26/1.1377-1

Basically the income/loss gets allocated pro rata per share per day so you'll get a different answer if the $100K withdrawal was on 3/1 vs. 3/30.

I think really this hinges on your use of the term "withdrew".  I assume this means "exchanged shares for cash" and not just "took a cash distribution" but follow the legal paperwork to arrive at your tax position.

Rick