First and foremost, credit to u/PWNWTFBBQ
Not financial or sexual advice.
GameStop runs on 90-day cycles, 17 day run-up, and is followed by a big red candle. If this cycle theory proves itself correct, the following dates we should expect a run-up would be:
Jan 26 - Feb 22
April 25 - May 16
July 22 - Aug 10
Oct 20 - Nov 10