PVG Late Trading It is possible that PVG had trading activity related to re-balancing of the GLDX ETF which holds 5.83% of it's assets in PVG.
https://etfdb.com/etf/GLDX/#holdings
This can result in large MOC and after market trading.
I can't confirm that this is what happenned, but when it does, a stock usually quickly regains the price prior to the re-balancing activity.
goldguy