AUPH's option market isn't the norm, check out this:
Bid/Ask
0.47/ 4.65
Those are for the 15's. I've complained to TDAmeritrade about these asinine spreads before when I have gotten margin calls from them, right now I have a 9,650.00 maintenance requirement for 10 contracts and the 13's are even worse. TDA has called the MM and then maybe for a couple of days they have a normal B/A, but not for long. Great work on the SEC part.
IMO, and I have zero idea if I'm right, but I believe today's gain is because the MM do not have the shares to sell, they sold naked puts and now have to deal with having a short book.
As for you being a newbie in options, you have my congratulations on making money on the 12's. I didn't. It's also my opinion that we are done seeing the 13 and are off to the FDA races. Time will tell, GL
Lastly, I'm concerned about these maintenance requirement for I presently can't sell next months. Bastards! Dec 18 options for a strike at 15 is Bid 1.75 Ask 2.15