Rumpus Daily - September 13, 2026

Good morning and welcome to The Rumpus Daily. I'm Sheema Sharti. Markets are pricing a Fed rate hike at nearly eighty percent — the first tightening move in years, and geopolitics may be doing the Fed

Transcript

Sheema: Good morning and welcome to The Rumpus Daily. I'm Sheema Sharti.

Neil: And I'm Neil Matthews. Every weekday we bring you the signals from the world's prediction markets.

Sheema: Markets are pricing a Fed rate hike at nearly eighty percent — the first tightening move in years, and geopolitics may be doing the Fed's work for it. The Strait of Hormuz gets a diplomatic agreement and a simultaneous military threat, and traders are putting four hundred thousand dollars behind the more dangerous scenario. And the 2028 presidential field is already liquid — the money is moving well ahead of the news.

Sheema: The dominant signal today is the Fed. Markets are pricing a twenty-five basis point rate hike at the September 2026 meeting at close to eighty percent — nearly two million dollars in volume on that side alone. A cut is priced at under half a percent probability, with another million dollars behind it. The crowd has essentially closed the door on easing. The August CPI print came in at zero point four percent, with energy driving more than a third of the increase. This hike, if it comes, will have been imported from the Middle East.

Neil: That energy-to-CPI-to-Fed chain is exactly what the volume pattern reflects. The cut market — nearly a million dollars — isn't confusion. Traders are actively rejecting that scenario, not ignoring it. The fifty-plus basis point move is priced at under one percent, which tells you the crowd expects a calibrated response, not a panic. What's striking is the alignment. News and markets are pointing in the same direction, which is relatively rare. The September sixteenth Fed meeting market is the one to watch — there was a volume spike on the four-point-two-five percent upper bound question that confirms traders are treating this as a live event, not a theoretical one.

Neil: The more complex story sits in the Red Sea cluster, and the volume there tells a different story than the headlines. Markets are pricing an Iran-Oman Hormuz navigation agreement — probability moved up fifteen points over the past month, around forty-seven thousand dollars in volume. That sounds like a de-escalation signal. Then look at the Bab el-Mandeb closure market. The probability barely moved — up about two-tenths of a point — but the volume behind it is four hundred and thirty-five thousand dollars. That's nearly ten times the Hormuz agreement market. Traders are treating the diplomatic track and the physical disruption track as running in parallel. Houthis seized a strategic Red Sea island this week. Iraqi militias have entered the conflict. A New York Times piece framed Iranian escalation not as recklessness but as deliberate leverage strategy. The money agrees. A signed Hormuz treaty does nothing to address proxy activity in the Bab el-Mandeb — and the market is priced accordingly.

Sheema: The geopolitical risk score is sitting at seventy-one. That's elevated. If Hormuz gets its treaty and the Red Sea stays hot, the Fed is still getting its inflation signal either way.

Neil: Correct. The treaty, if signed, resolves a diplomatic question. It doesn't resolve the tanker problem. Gulf tankers are already running low on viable export routes — that was reported this week. Energy prices stay elevated, CPI stays elevated, and the Fed's hand stays forced. The Hormuz agreement is being priced as partial news.

Sheema: The equity markets are splitting in a way that fits this exactly — S&P up thirty-three points in probability terms, Nasdaq down thirty-seven — that's a rotation, not a rally.

Neil: Classic stagflation positioning. Rate-sensitive tech gets repriced down. Energy, value, and defensives hold. The WTI markets are thin — under six hundred dollars in volume on the sub-seventy-one contract — so the sixty-one percent probability drop there is probably noise. But the hundred-and-two-dollar oil contract getting activity is a genuine tail-risk hedge against a chokepoint closure scenario. The equity split carries more signal than the oil contract moves today.

Sheema: Neil, thanks very much.

Neil: Thanks, Sheema.

Sheema: That's The Rumpus Daily for Sunday, September thirteenth. We'll see you tomorrow.