Good question... were did the .17s go? I was looking at the screen and I believe there were five market makers sitting at .17. This is unusual for HMGP as there are normally just one or two on the ask. I turn my head for 30 seconds and look back and now there is one at .18, one at .19, one at .195, and two at .20.
I'm not an expert at this and not sure how they could all have changed nearly simultaneously like that??? My guess is a big order may have came in and they bowed out because they didn't actually have the shares and might not want to short it at this point? Just a guess.