The probability of a Fed rate hike soars after CPI data shock: What it means for cryptocurrencies

Interpretation of September 11 CPI data: The Fed's rising interest rate hike expectations and the crypto market reaction

When traders entered the market on Friday, September 11, they were expecting to see calm economic data. However, the actual released data sent mixed signals and completely reversed the direction of discussions on Fed interest rate hikes in just one morning. Within minutes of the data release, bond trading desks were re-priced, cryptocurrency charts were first red and then green, and everyone from retail traders to Fed officials was talking about the same thing: Will there be a rate hike on September 16? What will happen after that? Here's a full picture of the point-by-point analysis and what this means for your portfolio.

Key points:

• The consumer price index (CPI) rose 0.4% month-on-month and 3.4% year-on-year in August, with gasoline prices playing a major drag.
• Given that the Fed is weighing one-time oil costs against stubborn core inflation, the probability of a rate hike at the September 16 meeting jumped to about 87.3%, according to market pricing tools.
• Bitcoin and Ethereum fluctuated violently due to the news, and the total market value of global cryptocurrencies is close to US$2.74 trillion. At the same time, market sentiment has been suppressed as it is unlikely that the Federal Reserve will cut interest rates before the end of 2026 in the long run.

Why does CPI data push up the probability of the Federal Reserve raising interest rates?

The U.S. Bureau of Labor Statistics confirmed on September 11 that seasonally adjusted consumer CPI for all cities rose 0.4% month-on-month in August, compared with a smaller increase of 0.1% in July. Over the past 12 months, the all-item index has risen 3.4%, in line with expectations from leading economists. Core CPI news, which excludes food and energy, rose 0.3% month-on-month, slightly above economists 'expectations of 0.2%, although its annual pace slowed to 2.4%, the lowest annual core reading since March 2021.

What does the August CPI report actually show

Monthly changes in CPI components Notes Overall CPI +0.4% year-on-year increase 3.4% year-on-year core CPI +0.3% rose 2.4% year-on-year, Gasoline +3.9% drives more than one-third of monthly growth Energy (overall)+2.1% Main source of upward pressure Housing +0.3% Up from 0.1% in July Food +0.1% Eating out Food prices rose 0.3% Why core CPI is more important than overall numbers

Here's a turning point that made the data difficult to trade this time. As explained in the Crypto Rover X post, the Fed relies on core CPI as its true indicator of inflation because it strips out oil price fluctuations that fluctuate with world events. Core inflation has actually cooled to its lowest annual level since March 2021. But gasoline alone drove more than a third of the overall monthly increase, leaving the Fed with an awkward choice. Is it to raise interest rates when the pressure comes almost entirely from a single input (oil), or do it sit tight and risk having to raise interest rates sharply in the future if energy costs continue to rise? Economist Peter Schiff bluntly pointed out in a post that same morning that if the Fed does not raise interest rates now, it proves that the 2% inflation target is not a real target at all.

The probability of a Fed rate hike jumps to 87.3%

After the data was released, market pricing tools showed that the probability of the Fed raising interest rates by 25 basis points at the September 16 meeting climbed to about 87.3%, while the probability of no action fell to about 12.7%. This would raise the federal funds rate from the 3.50%-3.75% range that has been maintained since December 2025. A rate hike on September 16 will have a substantial impact. Few people within the Fed believe that a single 25-basis point adjustment will solve inflation, so the current rate hike may signal that officials believe current rates are still too low. Some comments, including remarks by former Federal Reserve Vice Chairman Richard Clarida, raised the point that a rate hike rarely comes alone and that the current market pricing is closer to the three general adjustments before June next year than the two previously expected.

Bitcoin prices and Ethereum prices today: How the crypto market reacts

So why did the crypto market rise today after the release of inflation data that supports higher-risk interest rates? Emotions quickly reversed. According to CoinGecko data, the global market value of cryptocurrencies is US$2.74 trillion, up 0.6% in 24 hours, and the transaction volume is US$106 billion. Bitcoin's dominant rate is 56.7%, and Ethereum's rate is 11.2%. Today Bitcoin prices are around $77,240 and Ethereum is around $2,511, both coins moving green as traders digest mixed CPI and PPI data rather than just respond to headline inflation.

When will the Federal Reserve cut interest rates again?

Don't expect the Fed to cut interest rates anytime soon. Polymarket's forecast market data shows that the probability of not cutting interest rates in 2026 is as high as 93%. This is consistent with broader sentiment: officials are more concerned about whether further interest rates are needed than when policy will be relaxed. Anyone who owns cryptocurrencies or interest-rate sensitive assets should plan around "high interest rates last longer" rather than expecting a quick turn.

Expert opinion:

Market analysts pointed out that this CPI data puts the Fed in a truly divided position rather than a clear position. The gap between the strong gasoline-driven aggregate numbers and the cooling core readings left room for policymakers to debate positions at their September meeting. Analysts warned that the short-term rebound in cryptocurrencies should not be interpreted as confirmation that austerity policies have exited the stage, as interest rate hikes and further interest rate hikes in 2027 and beyond are still possible based on current market pricing.

YMYL Disclaimer :

This content covers financial and economic data and for information purposes only and does not constitute financial, investment, trading or legal advice. Interest rate decisions, inflation data and cryptocurrency prices change rapidly and carry real financial risks. Be sure to verify current data through major sources such as the Federal Reserve and the Bureau of Labor Statistics, and consult a licensed financial adviser before making investment decisions.