19 comments

  • tolugenius an hour ago

    Archive link (https://archive.is/20260814213548/https://www.ft.com/content...)

    Pretty short so I imagine more details and analysis are forthcoming.

    • totetsu 40 minutes ago

      https://youtu.be/rE75WvOtcu8 This video from Patrick boyle has a lot of detail.

      • dmix 15 minutes ago

        Always been a bit wary of Patrick. He reminds me of those people who in the 1990s/2000s would have become professional talking head guests on CNN. The older ex-academic/ex-industry guys who knew how to spin popular news stories into sound bites for the general public, while offering a veneer of authority. I'd rather get analysis from people who don't chase pop news stories for a living.

    • redwood 40 minutes ago

      Really weird writing and grammar errors. Odd

  • JumpCrisscross 44 minutes ago

    “By our calculations, Jane Street ponied up a one-off $200mn to do the deal and then locked in a further $200mn of costs per annum, at least in part, to avoid us gawping at their numbers every quarter. Wowsers” [1].

    [1] https://www.ft.com/content/28a51284-98cc-4767-a306-0540d2656...

    • jt2190 28 minutes ago

      > Jane Street has generated more than USD 40 000 000 000 in net trading revenues in the year to Friday, even accounting for the July loss, which exceeds its entire haul for 2025, according to one of the people familiar with the matter.

      • JumpCrisscross 9 minutes ago

        Sure. It’s still an embarrassing hit they’d want to keep secret, particularly if they’re still in those positions. Paying hundreds of millions to hide a $15bn MtM loss makes sense.

  • otterley 26 minutes ago

    They're still up $25B for the year, so it's hard to feel bad for them :-)

    On a more serious note, Jane Street has hired some very impressive technical talent. I'd work for them, myself, if I didn't have to relocate to Chicago.

  • lz400 26 minutes ago

    It's all so sketchy. Jane Street were investors in SA but presumably were much more sophisticated and savvy than Leopold. When SA got in trouble, 3 firms got into a bid war for the assets at fire sale prices: Citadel, Jane Street and a third I forgot. Citadel outbid the other 2, but it's all weird, like Jane Street wanted in on the popular boy's book that they knew was going to tank and just were waiting around in the water like sharks.

    • JumpCrisscross 12 minutes ago

      Nothing about any of that is sketchy. It’s in their mutual interest to avoid a fire sale.

    • Aurornis 10 minutes ago

      > like Jane Street wanted in on the popular boy's book that they knew was going to tank

      This is completely illogical. If they knew it was going to tank, they wouldn’t invest.

      As conspiracy theories go, this one doesn’t even have a leg to stand on.

  • naveen99 17 minutes ago

    The bigger hit will be all their star quants going full solo (supervised with Claude).

  • choult an hour ago
  • rvz 6 minutes ago

    Jane Street doesn't care about this loss. But it is almost always the effective altruists accelerating their own downfall.

    And yes, Anthropic included.

  • camel_gopher an hour ago

    Tragic

  • xhevahir 19 minutes ago

    And they're still making tens of billions this year. Whatever they're paying in taxes, it isn't enough.