Fed decisions (Sep–Dec)
The most recent Fed messaging and market reaction point away from a clean Hike–Pause–Hike sequence, but the September hike and the persistent possibility of one more increase later this year keep it very much alive. I would put the chance of Yes at 41%, below the current market price.
Analysis
The September meeting already delivered the first leg of the required pattern, so the remaining question is whether the Fed pauses in October and then hikes again in December. Recent commentary from John Williams is the strongest clue in favor of that structure, because it suggested there was no urgency after the September move and that one further increase later in the year could still be appropriate. That language fits a path where the Fed waits in October, gathers more data, and then acts in December if inflation and activity remain firm. The market reaction described in the news summary supports that interpretation, since traders and several banks moved their expectations away from October and toward December after those remarks.
At the same time, the pattern is fragile because the Fed has not clearly locked in a December hike. A Hike–Pause–Hike sequence requires both an October hold and a December hike, and the evidence is only solid on the first of those two steps. The Fed has been emphasizing data dependence, and softer inflation readings have made some large banks push their hike forecast later or reduce conviction altogether. If incoming data cools further, the committee could easily choose Hike–Pause–Pause instead, which is probably the single biggest competitor to this market outcome. That means the central question is not whether October is likely to be a pause, but whether December still clears the bar for another increase.
Relative to the market price, I think the probability of Yes is somewhat lower than 50% because the report suggests consensus has shifted toward a December hike rather than a definitive October-then-December structure. The market question is narrow and requires the exact sequence, which is harder to realize than simply getting one more hike by year-end. Even if the Fed does hike again in December, any surprise October hike or December hold would break the sequence. So while the path is plausible and supported by current messaging, it is not the most robust outcome, and the current price seems to be slightly overconfident about the exact ordering.
Arguments
For
- Arguments for Yes: The September hike is already done, and current messaging still leaves one more hike later in the year on the table.
- Arguments for Yes: The strongest recent guidance points to October as the likely pause and December as the main remaining hike window.
Against
- Arguments against Yes: The market is not just betting on a hike, but on a very specific ordering that is vulnerable to any change in timing.
- Arguments against Yes: Softer inflation data and the Fed’s cautious tone make a December pause more plausible than a second hike.
Key drivers
- September’s hike already satisfies the first step, leaving only October and December to determine the sequence.
- John Williams’ comments reduced urgency and made a December hike more plausible than an October hike.
- Market pricing has shifted away from October tightening and toward a possible December move.
- The Fed’s data-dependent stance leaves room for the sequence to change if inflation or growth surprises.
Risk factors
- A December hold would immediately break the Hike–Pause–Hike pattern even if October is unchanged.
- A surprise October hike would convert the path into Hike–Hike–Hike instead of the required sequence.
Scenarios
Best case
The Fed pauses in October as expected and then resumes tightening in December after data stays firm, producing the exact Hike–Pause–Hike sequence.
Most likely
October is a pause, but December remains uncertain enough that the market may end up with Hike–Pause–Pause slightly more often than the exact Hike–Pause–Hike pattern.
Worst case
The Fed either hikes again in October or, more likely, leaves rates unchanged in December, which would make the outcome something other than the required sequence.
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