Two days ago, we flagged that Fed hike odds had jumped to 62% before the data that was supposed to justify it had even landed. The data has landed. The number still won't sit still.
WHAT HAPPENED
August's Consumer Price Index, released Friday, September 11, came in hotter than expected on the metric that matters most to the Fed. Headline CPI rose 0.4% month-over-month and 3.4% year-over-year — in line with forecasts on the surface. But core CPI, which strips out food and energy, rose 0.3% monthly against a 0.2% consensus, an acceleration from July's 0.2% pace. That one-tenth miss came a day after Thursday's Producer Price Index showed producer prices up 0.4% monthly and accelerating to 5.4% annually from 4.8% — a report that had already pushed pre-CPI prediction markets to price a 63% chance of a September hike.
Bitcoin fell into the $76,800-$77,200 range Friday, down about 1.1% on the day and roughly 4.7% for the week. Spot Bitcoin ETFs suffered their worst single-day outflow since July on September 10, with Ethereum and Solana funds also bleeding while XRP was the lone product to see net inflows. The Fear & Greed Index cooled sharply, from 74 a week earlier to 69 the day before CPI, to 56 after it landed.
WHY IT MATTERS
This is the exact data point our last two pieces said to watch for. The question was always whether real inflation numbers would settle the odds or just become the next thing measures disagreed about. CBS News called a September hike "all but guaranteed" following the report. Now there's an answer to whether that certainty holds up, and it's more complicated than the headline suggests.
WHAT THE MARKET MAY BE MISSING
CBS's "all but guaranteed" framing is doing more work than the actual numbers support. Interest-rate swaps, per Bloomberg, are now pricing a 90% chance of a hike next week, with two full hikes priced in by year-end. A separate outlet puts CME-linked odds at "above 65%" after the CPI print. The prediction-market baseline cited before Friday's release was 63%. Even accounting for the fact that one of these is a pre-CPI reading, the post-CPI spread alone — 90% versus "above 65%" — is roughly 25 points on the exact same question, measured after the exact same data.
The pattern isn't going away just because real numbers showed up. It moved to a new range. Whichever single figure gets quoted in a headline this weekend is still one read among several that don't agree — the same problem, just measured one week later and several points higher.
KEY DATA
Pre-CPI (before Friday's release):
Prediction markets: 63% hike probability, per 24/7 Wall St.
Post-CPI (after Friday's release):
Interest-rate swaps: ~90% hike probability, two hikes priced in by year-end (Bloomberg)
CME-linked odds: "above 65%" (Tech Times)
Inflation data:
August core CPI: +0.3% MoM (vs. 0.2% consensus) · Headline: +0.4% MoM, +3.4% YoY
August PPI: +0.4% MoM, +5.4% YoY (up from 4.8%)
Market reaction:
BTC: $76,800-$77,200 range Friday, -1.1% day, -4.7% week
Fear & Greed Index: 56 (Sept 11), down from 69 (Sept 10) and 74 (one week prior)
Spot BTC ETFs: worst single-day outflow since July, on September 10
As of this morning (Sept 12): BTC rebounding to ~$77,269, +0.6%; global market cap ~$2.73T, +0.8%
Ahead:
FOMC meeting: September 15-16, decision Wednesday
BULL CASE
Today's rebound — BTC back above $77,200, market cap up 0.8% — suggests the initial CPI shock may already be fading, consistent with a market that's absorbed hot data without a sustained breakdown. If the Fed hikes but signals it's likely a one-and-done move rather than the two hikes swaps are pricing, that could remove the more aggressive tail risk.
BEAR CASE
Deutsche Bank is reportedly modeling two quarter-point hikes this year — September and December — taking the federal funds target to roughly 4.0%-4.25%. If swaps' 90% reading proves closer to reality than the more conservative 63-65% figures, Wednesday's decision could still be a bigger shock to positioning than current price action reflects.
FOR ACTIVE MARKET PARTICIPANTS
The spread between swaps (90%), CME-style tools (65%+), and prediction markets (63% pre-CPI) is itself the signal — don't anchor to whichever single number shows up in a headline
Watch whether gasoline-driven inflation (up 27.4% year-over-year, per the Labor Department) cools into September; an energy-driven distortion argument is the strongest case for a hike-and-hold rather than a sustained hiking cycle
Three days to the FOMC decision — expect continued volatility in both the odds and BTC price as positioning firms up
Today's rebound is one day of data; treat it as tentative until it holds through the weekend and into Monday
WHAT TO WATCH NEXT
FOMC meeting, September 15-16, decision Wednesday
Whether Warsh's Fed signals a single hike or opens the door to the second hike swaps are already pricing for December
Whether Friday's ETF outflow was a one-day reaction or the start of a longer withdrawal trend
BOTTOM LINE
The data that was supposed to resolve the ambiguity around September's rate decision instead produced multiple "confirmed" numbers that don't agree with each other. Real data didn't end the disagreement — it just gave it a new, higher range to disagree within.
Community question: Now that real data has landed and the platforms still disagree by 25+ points, are you trusting swaps, CME-style tools, or prediction markets most heading into Wednesday's decision?
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