Strange after hours trading this evening.

QQQQ doing nothing.

ATVI down 1.53% (19c)

ERTS down 2.48% (52c)

TTWO down 3.47% (32c)

THQI down 3.53% (25c)

I wondered if maybe MS, Sony and Nintendo had all raised their hardware prices, but GME is doing nothing, same with QQQQ. So I checked the after hours action at nasdaq.com and guess what, all those trades were 1 or 2 trades each per ticker, all were last in the session, and all at precisely 17:12pm. Yes, all four stocks at the same time. That was 2.7K ATVI, 23.8K ERTS, 29.4K TTWO and 31.2K THQI. Did some computer just go crazy for a few seconds? Or did Cramer or those Fast Money clowns say something?