[nevermindiguess]

Nasdaq closing auction ends at 4pm. Reports come out later. Participants trading on 8-K cannot trade the news immediately. Orders can be executed only on Monday during opening auction. Also, you assume their trades are enough to move the market and neutralize the opportunity, which may not be the case. Perhaps they can trade off market. I’m just saying that it may not be a done deal as you describe it, but I may be missing some aspects.

[xwdv]

This is a very retail oriented view of the world. For the big players it’s trivial to move stock any time of day, there are various methods, they aren’t sitting around waiting for financial markets to open.

[nevermindiguess]

Would you care to give some examples? Anything after hours must be OTC, but traders won’t be on the floor on Saturday and Sunday. I know. I was there. So, who’s going to trade during the weekend? Trades also have to be reported within a certain time. I’m not sure about weekend reporting. It’s a genuine question. Your comments seems more a hearsay than actual experience.

[kortilla]

Anything of relevance has significant AH volume. You’re too late by Monday morning.