Bitcoin is doing something that, on the surface, doesn't make much sense.

For most of the summer of 2026, when bitcoin’s implied volatility (measured by the CME CF Bitcoin Volatility Index, or BVXS) sat between 35% and 45%, the cryptocurrency looked stagnant — trading sideways in the $60,000 range, roughly 50% below its all-time high from September 2025. In some ways, the decline made sense. In September 2025, the consensus was that the Federal Reserve was entering an easing cycle and that rates would continue moving lower. The Fed did cut rates, but by the time of its final cut in December, bitcoin had already begun its decline. It finished 2025 around $90,000 before continuing lower and eventually reaching cycle lows near $59,000 in June 2026.

The traditional explanation was seemingly straightforward. All else equal, non-yielding assets such as gold and bitcoin tend to benefit from lower interest rates. When rates are high, the opportunity cost of holding an asset that generates no income becomes a significant headwind. This thesis makes fundamental sense to most traders and analysts, and for much of 2026, Bitcoin's price action appeared to fit the narrative until something changed this summer.

On August 19, Bitcoin began a ferocious move higher, gaining more than 30% through September 21. The rally was particularly interesting given what was happening everywhere else in the market.

Treasury yields were rising sharply at the same time bitcoin was moving higher. The 10-year Treasury yield was around 4.7% in mid-August before climbing above 5% by mid-September. The 2-year yield, more closely tied to expectations for Federal Reserve policy, made a similar move, rising from roughly 4.2% to 4.75%.

Then, on September 16, the Federal Reserve delivered another potential headwind for bitcoin bulls, raising rates by 25 basis points. In other words, bitcoin was rallying while one of its most commonly cited macro tailwinds was moving in the opposite direction.

The regulatory story was perhaps even more interesting. Early in the rally, some analysts attributed bitcoin's strength to expectations that the CLARITY Act would advance. The legislation was designed to establish a more defined regulatory framework for digital assets — something that could potentially encourage broader institutional participation by reducing regulatory uncertainty.

However, that catalyst disappeared as well. On September 15, the Senate failed to advance the CLARITY Act, falling short of the 60 votes required. Bitcoin initially dropped about 5% following the vote, but the decline was short-lived. The market quickly shrugged off the setback, and bitcoin continued moving higher through the second half of September.

Bitcoin rallied without the help of lower interest rates, despite sharply higher Treasury yields, and even after a piece of legislation that many investors had identified as a potential catalyst failed to advance.