I'm extremely skeptical about this.

24/7 trading will definitely burn a lot of extra energy in datacenters, make some speculators a little richer, and make a LOT of retail investors nervous…

But what actual real-world problem will it solve?

I for one am skeptical that more liquidity is always good. I think that having achieved $0.01 spreads, we're well-past the point of diminishing returns with high-frequency trading.

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elil17 4 hours ago | parent | next [-]

Right? Why do we even need all-day trading?

I have seen a once-daily auction proposed, which seems like a sensible approach to me.

	▲	jedberg 3 hours ago \| parent [-]
		That wouldn't be enough liquidity, and also wouldn't solve the problem if the auction happened at a specific time. Day traders would all put in their bid at the last possible moment. What solves the day trading problem is doing chunked actions at random small intervals (like between 2-7 seconds). Then you can't put your bid in at the last moment because you won't know when it is. So your best bet is to put in your bid when you've chosen a price, knowing that it will resolve within seven seconds or less.

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pembrook 4 hours ago | parent | prev [-]

> But what actual real-world problem will it solve?

I know most Americans don't travel, but are you aware that timezones exist and there's an entire world outside the US that also invests in US companies?

Why do you think global companies want to list in US capital markets instead of their own? Being the world's most desirable capital markets is a massive boon for the US economy and 24/7 trading will only accelerate this trend.