Markets Polymarket September 12, 2026
US Inflation Persisted in August, Raising Fed Rate Hike Odds
August Inflation US - Monthly
Polymarket prices this 0.4% at 54%.
US inflation remained stubbornly high in August, with the one-month percent change in the Consumer Price Index for All Urban Consumers (CPI-U) landing at 0.4%. This persistence in consumer prices, largely driven by elevated energy costs amidst the Iran war, has pushed the Federal Reserve closer to another interest rate hike. The monthly core reading also registered as hot, further solidifying expectations for the Fed's next move. The prediction market had anticipated this outcome, with the "0.4%" option closing as the favored side, reflecting a significant albeit not overwhelming expectation of this result.
Background
The Consumer Price Index (CPI) report for August 2026, released by the Bureau of Labor Statistics (BLS), was a keenly watched economic indicator. Over the period leading up to its release, market odds for a higher inflation reading had steadily climbed, signaling growing concern among investors and economists about persistent price pressures. Treasury yields remained near multiyear highs as investors weighed the potential impact of the latest report on monetary policy.
What the coverage agrees on
- Inflation persisted or accelerated in August.
- Higher inflation increased the likelihood of a Federal Reserve interest rate hike.
- Annual inflation held at 3.4%.
How outlets frame it
- CNBC: Inflation remained stubbornly high, primarily due to rising energy prices amid the Iran war, and kept Treasury yields near multiyear highs.
- decrypt: While annual inflation held and core cooled annually, a hot monthly core reading kept Fed hike odds high, even as crypto markets broadly rallied.
What to watch
The persistent inflation in August has significantly increased the probability of the Federal Reserve implementing another interest rate hike. This could lead to continued high Treasury yields and further impact borrowing costs for consumers and businesses. Investors will now closely monitor the Fed's next policy meeting for definitive signals on future monetary tightening.
The numbers behind this
Polymarket prices this 0.4% at 54%.
24h +2.5 pts 7d +5.5 pts
$65.4K traded · $23.6K in the last day · $25.8K resting liquidity · $25.2K open interest
Resolves on: This is a market about the one-month percent change in the seasonally adjusted Consumer Price Index for All Urban Consumers (CPI-U) published by the Bureau of Labor Statistics (BLS). This market will resolve to the one-month percent change in the seasonally adjusted Consumer Price Index for All Urban Consumers (CPI-U) in August 2026 according to the monthly BLS report. The resolution source for this market will be the BLS Consumer Price Index report released for August 2026 (https://www.bls.gov/bls/news-release/cpi.htm), currently scheduled to be released on September 11, 2026, at 8:30 AM ET. Resolution of this market will take place upon release of the aforementioned data. Note: the…
Pricing Polymarket 54%
Sources
- Inflation persisted in August, potentially locking in a Fed interest rate hike cnbc.com
- Inflation ticked up in August, setting the stage for the Fed to hike interest rates nbcnews.com
- Inflation stayed hot in August with annual pace of 3.4%, raising the odds of a Fed hike cbsnews.com
- US consumer prices accelerate in August, push Fed closer to rate hike reuters.com
- Inflation heated up last month, boosting the case for a Fed rate hike cnn.com
Frequently asked questions
August Inflation US - Monthly
Polymarket prices this 0.4% at 54%.
What do the sources agree on?
Inflation persisted or accelerated in August. Higher inflation increased the likelihood of a Federal Reserve interest rate hike. Annual inflation held at 3.4%.
When does this market resolve?
This market resolves on: This is a market about the one-month percent change in the seasonally adjusted Consumer Price Index for All Urban Consumers (CPI-U) published by the Bureau of Labor Statistics (BLS). This market will resolve to the one-month percent change in the seasonally adjusted Consumer Price Index for All Urban Consumers (CPI-U) in August 2026 according to the monthly BLS report. The resolution source for this market will be the BLS Consumer Price Index report released for August 2026 (https://www.bls.gov/bls/news-release/cpi.htm), currently scheduled to be released on September 11, 2026, at 8:30 AM ET. Resolution of this market will take place upon release of the aforementioned data. Note: the…
How are these odds set?
Prediction-market odds are prices set by people trading real money on the outcome, so the price reads as the crowd’s implied probability — not a guarantee or financial advice.
AI-written briefing grounded in 5 sources and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.