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I'd argue that the reason why HFTs don't do day trading strategies, is because it's not profitable in the long run (ie, negative expected value). Which backs G

• Anon1096 6y ago
  Hedge funds engage in day trading, and there's many successful hedge funds. So the expected value can be positive if you're sufficiently skilled.
  • yomly 6y ago
    I always find these kinds of thought processes interesting "day trading always leads to losses". As with poker, anything which is predictable can lead to meta strategy which can be gamed: this is why GTO players can be outplayed by player-focused players, at least on occasion. But occasion matters! Life isn't a nice continuous stream, it's lumpy. Circumstantial performance makes a difference - and that's why Greece could win the Euros despite probably not being a good football team. Day trading is probably quite a hard discipline to follow, but that doesn't mean that everyone who does it is destined to fail. Anecdotally 50% of marriages end in divorce but that apparently doesn't stop most people getting married...