SRMX showing huge increase in volume

After the first ever golden cross in its history, SRMX showed a strong increase in price as well as in volume. Average trading volume is around 77 M. Yesterday it was about 3 B.
I think that there is something going on here and it's worth to have it on the watch list for a while. Needless to say, that this stock is very unstable and therefore extremely risky to trade.