https://www.elitetrader.com/et/threads/ib-how-to-cover-short-position-in-a-delisted-stock.198027/
no follow through but sounds like a pain. Some HTB fees are way up there on the real micro cap shorts. Any gains soon disappear on fees.
https://ibkr.info/article/2880
[URL]https://www.bloomberg.com/opinion/articles/2018-04-11/-go-to-zero-isn-t-great-for-short-sellers[/URL]