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The CME FedWatch tool shows 56% odds of a 25-basis-point rate hike at the September 15-16 FOMC meeting. You’ve likely seen that number in multiple headlines this week. But most people don’t know how FedWatch actually derives that probability, what it’s really measuring, or why the number can swing 10 percentage points between Tuesday morning and Wednesday afternoon. Here’s how to actually read it.
What FedWatch Actually Measures
FedWatch doesn’t survey economists or poll traders. It derives probabilities from the prices of Federal Funds futures contracts — financial instruments traded on CME Group’s exchange. These contracts settle at the average federal funds rate for their target month.
When traders buy a futures contract expecting rates to remain flat, they’re willing to pay more for that contract, which implies a lower probability of a hike. When traders sell (expecting higher rates), the contract price falls, implying higher hike probability. FedWatch takes the current futures price and calculates the implied probability distribution across all possible rate outcomes.
This matters because it’s a real-money signal. People are putting actual capital behind their rate expectations, not just answering a survey. When FedWatch shows 56% hike odds, it means the aggregate of real-money bets on rate outcomes produces that probability — not a theoretical model or expert opinion.
Why the Number Shifts Daily
Federal Funds futures prices react to every new data point that affects rate expectations:
- Economic data: US CPI, PPI, jobs reports, and retail sales all move FedWatch probability directly. A hotter-than-expected CPI pushes hike odds up; a weaker-than-expected jobs report pulls them down.
- Fed speeches: Governor Waller’s September 3 statement that a hike “may be appropriate” pushed odds up noticeably. Warsh’s hawkish Jackson Hole speech on August 28 had a similar effect. A single speech from a voting member can shift FedWatch by 5-8 percentage points.
- Geopolitical events: Middle East tensions driving crude above $100 affected inflation expectations, which affected FedWatch.
- Market contagion: If equity markets sell off sharply, traders sometimes price in a more dovish Fed (the “Fed put” narrative), which lowers hike odds even without new data.
How to Actually Read the Tool
Visit the CME Group website and select the FedWatch tool. Choose the target meeting date — September 15-16, 2026 in this case. The tool shows a probability distribution across all possible rate outcomes: unchanged, 25bps hike, 50bps hike, or cut.
The key reading is the full distribution, not just “hike vs. hold.” Today’s 56% represents the probability of a 25bps hike specifically. The remaining 44% is mostly assigned to an unchanged outcome; the probability of a 50bps hike or a cut is negligible at current market pricing.
The “implied rate” chart shows what the market expects the federal funds rate to be at every future FOMC meeting — this is more useful for longer-term planning than the binary hike/hold number.
FedWatch in Practice for Thai Investors
FedWatch gives you a real-time read on market rate expectations that you can layer on top of other signals:
- USD/THB: When hike odds rise above 50%, watch for USD/THB to strengthen toward 33.30+. When odds fall, watch for baht recovery. The correlation isn’t perfect but it’s directionally reliable.
- Gold: Hike odds above 55% historically correlate with gold dipping 1-2% in the week before the meeting. Current odds at 56% are consistent with gold’s recent pullback to ฿67,556.
- Bitcoin: BTC tends to sell off when FedWatch hike odds rise above 55% — the correlation with NASDAQ is the transmission mechanism. Again, directional, not precise.
- EM equities including SET: Higher hike odds increase the dollar, which pressures EM equities through foreign outflows. The September 11 SET drop to 1,604 partly reflects this dynamic.
Limitations to Keep in Mind
FedWatch is a short-term instrument reflecting what traders think will happen — not what should happen given economic fundamentals. Probabilities above 70% tend to be reliable directional signals; below 60%, you’re in coin-flip territory where market surprises are common.
Don’t build a position based solely on FedWatch. The tool is most useful as one input in a broader framework: combine it with the Fed’s own communications (statement language, dot plot), economic data flow, and your own assessment of risks. Fed surprises happen regularly — March 2020, November 2021, and September 2022 all caught markets significantly off guard.
At 56% today, the tool is saying: we’re essentially 50/50 on this one. Build positions that can survive the outcome you don’t expect.
