As I said last time, there are plenty of really thorough DDs out there for GRPN you can (and should) read through.
The tldr; the company still has \~$200MM left in a buyback into a very thin float. Over the last \~60 days, the short interest (outstanding shares shorted) has dropped \~10% but the Short float (%) has gone from \~55% to 68-70%. Which means, the denominator is getting smaller, shares being returned are leaving the available shares pool.
I tend to watch a lot of level2 data and I've had this up for the last few days. Today is typically the classic low volume, zero buyers, push the price down going into OPEX day, and it just hasn't happened (yet anyway). Even though it's slightly red, this has been a very bullish price action day. It's on track to close maybe around 600k in volume and might still close green. Everything I've seen is that shorts are starting to close out and more importantly, they aren't piling on.
Friday is the wildcard (OPEX) and there are \~10k contacts OTM right now, I would imagine the 25C strike is going to be defended at some point, but would have thought that would have started today. There are still a few hours left, might just be saving it.
position: 200 Aug 21st 30C
https://preview.redd.it/mwm4x1j2sfdh1.png?width=2730&format=png&auto=webp&s=f1c75e4d06db118cc764793416037f5da7636053
https://preview.redd.it/u46q1fjlsfdh1.png?width=1510&format=png&auto=webp&s=6ff1c8e6eee3dc1937e55860ad690477f8214fa0