
Vivek Bharadwaj
4.3K posts

Vivek Bharadwaj
@vivekb_
F1, Football, Tech and shitposts. Views personal.


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.



Long Weekend Escape? Bengaluru Crowd Turns Agumbe Ghat Into 4-Hour Traffic Festival This is the scene at Agumbe Ghat when people from Bengaluru head out to “enjoy” their long weekend only to end up stuck in traffic for 3–4 hours straight. What was supposed to be a peaceful getaway into nature turns into an extended parking session on a hill road. Instead of exploring scenic views, breathing fresh air, and relaxing, people are treated to a premium experience of bumper-to-bumper traffic, honking symphonies, and slow-motion driving from one curve to the next. Ironically, the only thing moving faster than the vehicles is the frustration. At this point, it almost feels like the plan isn’t to escape the city, but to carry Bengaluru’s traffic along for a road trip. Long weekend holiday? More like a well-organized traffic festival—where the destination doesn’t matter, because you’re already spending all your time on the road. #bangalore #bengaluru #traffic #agumbe #ghat @ARRS_India @AgumbeResearch @Shivamogga_SP @DgpKarnataka @KarnatakaCops @Lolita_TNIE @ChristinMP_

Tell me a piece of trivia about your city that you think most people will not know. Here's mine: The official name of Marine Drive in Mumbai is Netaji Subhash Chandra Bose Road.

Slot machines can now follow you across the casino floor😳


ChatGPT is now available in CarPlay. The voice mode you know, now available on-the-go. Rolling out to iPhone users running iOS 26.4+ where CarPlay is supported.

Saka got the easiest job in the world. Arteta tell him just go out there n win some corners
















