Quick backstory: around a month and a half ago, I was partaking in my daily twitter doomscroll, and chanced upon a fascinating tweet from Steve Hou. I usually like Steve’s posts anyways, because he offers cool insights into the quant industry and is a pretty smart guy overall. But this tweet was particularly insightful - to the point that I bookmarked it to study in depth later.
It’s about the concept of “Alpha” and how even experienced practitioners can misuse this term. As someone who’s still learning about the field, it’s offered me a fresh perspective on a concept that is considered seemingly fundamental and basic. Around a month ago, I spent a few hours breaking each part of it down (within my own notes) and was rather happy with what I had learned. Then a thought struck me that I might as well share it publicly to potentially save someone else that time. So here I am!