Goldman moving to October rather than December for the next hike tightens the near term calendar markets have to price around, and puts a live meeting risk squarely inside a window some had assumed the Fed would prefer to avoid given its closeness to the midterms. If other desks follow Goldman in pulling their own timelines forward, that would likely keep short end yields and the dollar supported into October, while adding to the case for a higher for longer rate path more broadly. The bigger shift here is arguably qualitative rather than quantitative: with Goldman abandoning the most dovish framing on the street, the range of outcomes priced into rates markets narrows toward the more hawkish end, which typically weighs on rate sensitive equity valuations and can pressure risk assets that had been leaning on a shallower tightening path.

---
Goldman just gave up on "one and done," and now it's the bank penciling in the soonest next move on the Fed's calendar.