I'm nearly always trying to predict continuous alphas. The problem I'm generally trying to solve is: "What maximizes risk-adjusted excess return after txn cost, given expected vols, co-movements of assets, and my estimate of transaction costs"https://twitter.com/M1tchRosenthal/status/1369774884834934788 …
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This is the generic trading problem. The "trades" are just the deltas between the exposures spat out by that cost-aware optimization. This means that the "alphas" ultimately look like a continuous forecast of (risk-adjusted) expected returns (usually relative returns)
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This is nice because your trading model is already set up. Your researchers just need to go looking for new alphas.
@macrocephalopod probably has more colour to this (and your question.)2 replies 0 retweets 9 likesShow this thread -
Replying to @therobotjames @macrocephalopod
Thank you for this, your robot-ness! Makes sense and confirms what cephalopod was saying
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Replying to @M1tchRosenthal @macrocephalopod
That octopus really knows his factor models...
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Replying to @therobotjames @macrocephalopod
Yes, and the knowledge you all have is amazing but also intimidating, Im frightened by what I dont know and think I need to hit up more fundamentals, any resources you like in particular for this trading-oriented stuff?
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Replying to @M1tchRosenthal @therobotjames
How old are you, like 22 or something? You already know way more about finance than I did when I was your age.
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Replying to @macrocephalopod @M1tchRosenthal
Your depth of knowledge, pragmatism and quality of the questions you ask is extremely impressive.
I'm 40 and still have no idea what the fuck i'm doing...1 reply 0 retweets 4 likes -
Replying to @therobotjames @macrocephalopod
24, and about to hit the job market this May *gulp*, hungry for anything trading related that is salaried so I can gain independence, but really want my knowledge to be up to snuff. You guys are invaluable

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I got my first job in finance when I was 26 and I knew less than you do now, you’ll be fine.
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