August turned out to be a revealing month for bitcoin: contrary to years of statistics, the leading cryptocurrency not only avoided a decline but also delivered an impressive surge. Over two weeks, the asset rose by about 28%, breaking through the psychological mark of $80,000. However, it is too early to relax—September is traditionally considered one of the most treacherous months for risky assets, and this year is unlikely to be an exception.

The key trigger of uncertainty is the rhetoric of the Federal Reserve. After the Fed Chair's speech in Jackson Hole, the market sharply revised its expectations: the probability of a rate hike at the September meeting jumped from 45% to 60% in just one hour. This is a serious signal that is forcing investors to reassess their risk appetite.

Why the market is on edge

An analysis of macroeconomic data shows that the regulator is not ready to ease policy. The unemployment rate remains stable—around 4.1%—and consumer spending continues to rise. Corporate capital expenditures are growing by about 9% per year, largely thanks to the artificial intelligence boom. But the main headache is inflation: the Fed's preferred indicator, the PCE index, is stuck at around 3.7%, well above the 2% target.

A rate hike automatically increases the appeal of U.S. Treasury bonds, strengthens the dollar, and forces investors to demand a higher risk premium for stocks and cryptocurrencies. Bitcoin, as the asset most sensitive to global liquidity, finds itself at the epicenter of this pressure.

Calendar of decisions

Until the end of the month, the market faces a series of events that could determine the direction of movement. Labor market reports (September 1 and 4), the producer price index (September 10), and, most importantly, August consumer inflation CPI data (September 11) will set the tone for the first half of the month. The Fed meeting on September 16 with updated economic forecasts and the Bank of Japan's decision on September 18, which could impact carry trades, will be key bifurcation points.

Special attention should be paid to the expiration of quarterly bitcoin options on September 25. The volume of open interest is about $12 billion, and the structure of positions indicates that many traders are pricing in a drop to $70,000. This sets the stage for heightened volatility and false breakouts in the second half of the month.

Levels I am watching

My base scenario is consolidation in the $74,000–84,000 range. To move toward the lower boundary, an inflow of $400–800 million into spot ETFs is sufficient; to recover to $80,000, $800 million–$1.2 billion will be needed; and for a surge to $85,000, $1.5–2.5 billion. I do not expect a sharp collapse, but I also do not see growth to $100,000 in September.

Before the CPI release on September 11, profit-taking is possible, which could pull bitcoin back to $72,000–75,000. If inflation comes in below expectations, the asset will quickly return to the $80,000–84,000 range. Otherwise, the probability of a rate hike will rise to 70–80%, and losing the $74,000 level would open the door to a correction into the $70,000–72,000 zone.

September traditionally brings an average return of about −3% for bitcoin, but over the past three years, the month has closed in positive territory. Relying solely on seasonality is a mistake. The fate of the market is now being decided not by the calendar, but by inflation figures and the Fed's actions. Investors should prepare for high volatility and not give in to emotions at the first false breakouts.