Jane Street made ~$40B in 2025 with 3,500 employees, a ~2x from the year before.
At ~65-70% profit margin, that's $8M profit / employee, the highest for a 1000+ ppl company. High-frequency trading continues to be the most efficient money making engine.
I want to share an old story about my Jane Street interview in 2014. Jane Street was known for hiring a lot of math, physics and CS olympiad winners from top universities and putting them through many rounds - including, for trading roles, a gauntlet of mental math. It was my 6th interview and my final round and I recall being asked "What is the next day after today in DD/MM/YYYY where all the digits are unique?" They'd toy with you and say "You can use a pencil and paper, if you want" but you knew that was an instant no. Painstakingly and as quickly as I could, I came to an answer. "How confident are you that this is correct on a 0-1 probability scale?" the interviewer said. "0.95", I blurted out, not fully knowing how to answer that. "Are you sure?" After thinking harder for a few more seconds, I realized I could've flipped the digits around to get a closer date. I gave the interviewer my answer. It was correct. "0.95 huh?" he chuckled. That's when I knew I failed.
Note: fwiw, other companies that come close in efficiency are
- Tether ($90M+ profit/emp)
- Hyperliquid ($80M+ profit/emp)
and on revenue:
- Valve ($50M/emp)
- OnlyFans ($37M/emp)
- Craigslist ($14M/emp)
- Anthropic ($12M/emp, run rate)
- OpenAI ($8M/emp, run rate)
For comparison, Nvidia is very efficient at scale and is $4.4M/emp.
@ActusDei@championswimmer My employer submitted all the needed documents EPFO office also agreed they have everything, just not doing it since last 3 years , is there any solution for this ?
@championswimmer In between some employer did not contribute amount separately, I am facing exact issue since last 3 years , please let me know if it resolves for you
VIDEO | Delhi: Professor Neha Singh of Galgotias University responds to reports of the university being asked to vacate its stall at the AI Summit Expo, says, “The controversy happened because things may not have been expressed clearly. I take accountability that perhaps I did not communicate it properly, as it was done with a lot of energy and enthusiasm and very quickly, so I may not have come across as eloquently as I usually do. Also, the intent may not have been properly understood. One important point is regarding the robot dog—we cannot claim that we manufactured it. I have told everyone that we introduced it to our students to inspire them to create something better on their own. Our university contributes to building future leaders by providing cutting-edge technologies in the field of AI, and it will continue to do so.”
Regarding whether the government asked us to vacate the expo area, she says, “I do not have any information about that. What I know is that today we are all present here.”
#GalgotiasUniversity #AIExpo
(Full video available on PTI Videos - https://t.co/bIyFWTfmBd)