Table of Contents

• You might want to know


• Main Topic


• Key Insights Table


• Afterwards...

You might want to know

• Did August's inflation figures change expectations for a September Fed rate move?

• How did the cryptocurrency market, led by Bitcoin and Ethereum, react to the CPI details?

Main Topic

The U.S. Consumer Price Index (CPI) for August came in largely as economists expected, with headline inflation rising 3.4% year over year and 0.4% month over month, according to the Bureau of Labor Statistics. While the headline readings matched consensus estimates and were unchanged from July on an annual basis, the core measure—which excludes the more-volatile food and energy categories—painted a mixed picture. Core CPI eased to 2.4% annually, the lowest annual reading since 2021, yet the monthly core increase of 0.3% came in hotter than the 0.2% economists had forecast. Markets homed in on that hotter-than-expected monthly core print as they assessed what it implies for Federal Reserve policy.

The CPI release arrived five days before the Federal Open Market Committee convenes on September 15–16, making it one of the final major economic datapoints the Fed will consider. Short-term rate expectations, as reflected in futures and prediction markets, show a significant probability that the Fed will raise rates by 25 basis points at the meeting. For instance, CME FedWatch implied probabilities put the odds of a 25-basis-point increase at about 69%, while prediction markets such as Polymarket and private platforms have priced somewhat lower odds in the low- to mid-60s percent range. These probabilities reflect investor attempts to weigh the slightly mixed CPI detail—cooler annual core inflation but hotter monthly momentum—against other inflation and labor-market metrics.

Cryptocurrency markets responded to the CPI print with initial volatility followed by a broad rally. Bitcoin briefly dipped after the release, an immediate risk-off reaction to what some traders read as a hawkish signal, but quickly reversed course and climbed back toward prior highs. Over the session Bitcoin traded between roughly the mid-$76,000s and just under $80,000, ultimately moving closer to the psychologically important $80K level. Ethereum led many of the large-cap tokens higher with a notable single-day gain, while several altcoins also posted double-digit weekly moves. Zcash, for example, stood out among the top names, showing meaningful weekly gains. Overall market capitalization for crypto recovered toward roughly $2.7 trillion during the session.

Sentiment indicators moved with price action. The Crypto Fear & Greed Index rebounded to the greed zone following a pullback the prior day, signaling renewed bullish positioning. Yet despite price strength, flows into spot Bitcoin exchange-traded funds did not show a meaningful new influx of institutional capital on the day; net outflows continued to be recorded, indicating that some large investors remain on the sidelines despite the rally.

Derivatives markets reflected heightened engagement: futures open interest increased and 24-hour trading volumes rose as participants adjusted positions around the CPI print and the approaching Fed meeting. The session’s volatility generated a sizeable number of liquidations across long and short positions, consistent with the sharp intraday swings between initial dip and subsequent rebound.

From a technical perspective, Bitcoin’s charts showed an important structural development: the 50-day exponential moving average moved above the 200-day exponential moving average, a pattern traders refer to as a golden cross. Market participants often treat this event as a sign that the medium-term trend is shifting bullish, though it requires confirmation over subsequent days and a meaningful separation between the averages to carry greater conviction. Momentum indicators such as the Relative Strength Index (RSI) sat in bullish territory but were not yet at extreme overbought levels. Trend-strength metrics also suggested a coherent upward trend rather than mere noise, and the most immediately relevant support band—as defined by a Fibonacci retracement from the recent low to high—lies several thousand dollars below current prices. That retracement zone represents the band bulls would want to defend to maintain upward momentum ahead of the Fed decision.

Ultimately, the CPI release delivered a nuanced signal. The annual core rate drifting lower is encouraging for policymakers who want to see inflation recede toward target, while the hotter monthly core reading demonstrates that inflation dynamics can still show short-term persistence. For markets, that mix translated into near-term volatility rather than a decisive directional shift: traders must now weigh the implications for the Fed’s next policy move, monitor any additional incoming data this week, and observe whether institutional flows into spot crypto products resume or remain subdued.

The author’s commentary is informational and should not be taken as financial advice.

Key Insights Table

Afterwards...

Looking ahead, market participants will focus on the Federal Reserve’s September decision and any additional economic reports released before then. The CPI details leave room for differing interpretations: the cooler annual core rate supports the narrative of gradual disinflation, while the hotter monthly core reading warns that momentum can shift. Crypto traders will likely remain sensitive to policy guidance and liquidity flows, watching whether institutional investors begin to meaningfully re-enter spot markets. From a technical standpoint, sustaining levels above the immediate support band and confirming the golden cross with a persistent gap between moving averages would strengthen bullish conviction. Conversely, renewed selling that drives prices below the key retracement zone would reopen downside scenarios. Investors and traders should continue to monitor incoming macro data, Fed communications, and on-chain or fund-flow indicators to refine positioning in the days ahead.