delost (@thedelost) “jane street made $21.9 billion in net trading revenue last year one firm. not a” — TopicDigg

jane street made $21.9 billion in net trading revenue last year one firm. not a fund. a trading desk their head of technology sat down on a podcast and casually explained how it all works they don't predict where price goes they build systems that find when two related instruments are mispriced by fractions of a cent then capture the difference thousands of times a day no directional bets. no chart patterns. no conviction just math, speed, and infrastructure every trade has an expected value calculated before execution if EV is positive, take it. if not, skip. repeat 50,000 times a day the system doesn't care about news, sentiment, or what the Fed said it cares about one number: is this trade +EV right now > jane street started with 5 people in 2000 > now they trade $26 trillion in volume per year > they hire math olympiad winners, not MBA graduates retail spends hours deciding if a stock will go up or down jane street's system makes that decision in microseconds and doesn't care about direction the interview is free. 2 minutes. on your screen right now they never hid the playbook you just never looked full breakdown in the video below