minimax · HackerTrans

It doesn't mean anything for Chicago. "NYSE Chicago" is an electronic exchange hosted in New Jersey. It has Chicago in the name because NYSE bought the old Chicago Stock Exchange in 2018 (which was partially hosted in Chicago and partially in NJ... it was weird). To my knowledge post-2018 NYSE Chicago never had any trading operations in Chicago. NYSE does have sales people in Chicago because of the large prop trading community in the city and it would be hard to see how this NYSE Texas situation changes that.

minimax

2 年前議論

Your description of market making is backwards. If you're buying the ask and selling the bid, you're paying the spread not collecting it.

minimax

2 年前議論

It doesn't happen. All the exchanges have a "Day" order type that you can send before 9:30 that will be live on the book when it opens at 9:30 (or transitions to the "core" session at 9:30, most US exchanges have a premarket session prior to that). The idea of having some sophisticated strategy that sends 100ns before 9:30 is nonsense.

minimax

2 年前議論

> The NYSE runs out of a public data centre (called NY4) which is run by Equinix.

No. NY4 is in Secaucus. NYSE operates out of an ICE (NYSE parent co) owned facility in Mahwah about 25 miles north of there. They managed to pick out the one big US equities exchange operator _not_ running in an equinix facility.

Sorry but this whole post sounds like someone who is sort of HFT adjacent but doesn't really know what they are talking about. Sending orders at "09:29:59.9999971 at the hope your order arrives at 100ns past 9.30am." What?

minimax

2 年前議論

> if this was found by accident, how many things still remain undiscovered.

This, to me, is the most important question. There is no way Andres Freund just happened to find the _only_ backdoored popular open source project out there. There must be like a dozen of these things in the wild?

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