AMC Entertainment Holdings Inc (AMC)

[ktf7]

It shows up in the trades tab and also in the box on L2

I first saw it at 1610 in the question mark column. Then I saw it again on the L2 page at 1900. I went to the trades tab and it was in the question mark column again.
At 1900 there was a 10.35 ask and 10.33 bid.
At 1610 there was a 10.34 ask and 10.32 bid.

I looked up cross trade on Investopedia because of a comment of a fellow Board member here.
This is what it said:
A cross trade is a practice where buy and sell orders for the same asset are offset without recording the trade on the exchange. It is an activity that is not permitted on most major exchanges.

I don’t know if it was a cross trade but it is possible.