24/7 trading sounds like a nightmare. “Your retirement savings crashed 30% because there wasn’t enough liquidity to cover a 3am panic over non-news”.
We already have 23/6 trading with index futures. The S&P500 (ES), NASDAQ 100 (NQ), DOW (YM) will sometimes gap up or down on open just to match overnight trading.
Honestly, stocks should trade for three hours a day. 24/7 trading sounds like a win for exchange operators and a loss for anyone else.
but you just don't sell and wait until the liquidity comes in and prices return to normal at 9am, no?
There's already a huge futures market Liquidity will just migrate.
The beauty of it, though, is that it would recover almost immediately as systems arbitrage an obviously stupid situation.