Actually it's not a mess and is a very orderly system that's been in effect for decades. Even before "dark pools", ECN's and all the other trading venues that do create a "mess".
Those of us like myself who did the actual work of trading equities for clients often relied upon the added liquidity of opening and closing crossing sessions to process our largest client orders.
You need to put aside conspiracy nonsense and just learn Nasdaq market mechanics. These EOD volume spikes are simply the closing out of large at-close open orders, no doubt following proscribed Nasdaq rules. Today they were particularly large. It happens. It's not an AI or HFT or MM or other nefarious boogyman trying to steal your precious.
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