Max pain is 445 (as of today's closing). But there's more to the story. However, it is trending upward. There will be likely much call volume tomorrow AM near the money as traders lock in profits and minimize their losses. So if many are selling their 450 and 455 calls, there will be some commensurate purchasing of the stock to cover. If the coverage is higher on the 455 side, the stock could move higher. If the volume is stronger on the 450 side, it can pull the PPS lower. An overshoot could be 445 (with weight on its side) or 455/460 if heavy volume moves on the higher calls. Balanced volume will likely pull the stock toward stasis (at the open). Heavy put volume (high put/call ratio) could change everything, but that's unlikely given recent history.