This. I mean, consider: a report got released 400ms early. So the price of the futures fell 400ms early, and some trading firm made money off of that fall (ins

This. I mean, consider: a report got released 400ms early. So the price of the futures fell 400ms early, and some trading firm made money off of that fall (instead of some other trading firm making said money.) What's the impact on you of the price changing 400ms early? Even if you held that asset, were you really planning your trades to the second, let alone the millisecond, to begin with? No? Then it doesn't matter. Buy-and-hold broad index funds for decades on end, then you need only fear macroeconomics and political risk.