Bitcoin Holds at $86,000 as Dollar Reaches Highest Level in 18 Months

The U.S. dollar index (DXY), which measures the currency against a basket of six global currencies, reached approximately 102.5 points this Monday. This is the highest level in nearly 18 months. Since the beginning of September, when it hovered around 99 points, the indicator has accumulated a rise of about 3.5%, a significant movement for the foreign exchange market, where fluctuations of 1% are already considered substantial.

The DXY is now comfortably operating above its 200-day moving average, also close to 99 points. For those following technical analysis, this crossover signals a consolidated buying momentum, not just a temporary bounce.

Normally, a strong dollar at this level would be a sentence for risk assets. But Bitcoin remains firm in the $86,000 range, challenging the inverse correlation that dominated much of 2024. The important question: is this resilience sustainable or just a matter of time?

Why a Strong Dollar Usually Pressures Bitcoin

The mechanics are relatively simple. When the dollar strengthens, the cost of servicing debt denominated in U.S. currency increases for investors and companies outside the United States. At the same time, the purchasing power of international investors decreases, making dollar-denominated assets more expensive.

Adding to this are higher interest rates. The Federal Reserve raised the benchmark rate by 25 basis points in September, bringing the range to 3.75% to 4%. The market is already pricing in further hikes, with the 4.5% to 4.75% range emerging as the most likely scenario by mid-2027. This makes U.S. fixed income, considered the safest asset in the world, even more attractive.

Long-term yields on U.S. Treasury bonds have reached levels not seen in over two decades. For the rational investor, the bar for justifying allocation to Bitcoin or stocks rises along with these yields. As we detailed in our coverage of the crypto market, this high-interest-rate scenario has been the main villain for crypto assets in the last monetary tightening cycles.

What Lies Behind the Euro's Weakness and Its Effect on the DXY

A detail often overlooked by crypto analysts: the euro represents 57.6% of the DXY composition. In other words, more than half of the movement of the dollar index is, in practice, a reflection of European weakness, not necessarily of isolated American strength.

And Europe is not doing well. The euro has retreated to the 1.12 region, the lowest quote in 17 months. France is facing increasing pressure on its fiscal deficit and financing costs, with the situation complicating as the 2026 presidential election approaches. In Spain, Prime Minister Pedro Sánchez has called for early elections on November 29, adding an extra layer of political uncertainty to the bloc.

This combination of fiscal fragility and political instability in the old continent pushes capital into dollar-denominated assets. It is the classic flight to safety movement, something we explored in our finance editorial when analyzing global capital flows.

Bitcoin Challenges the Correlation: What Sustains $86,000

If the macro scenario should pressure Bitcoin downwards, why isn’t it yielding? Several factors help explain.

First, the month of October historically favors the asset. Dubbed "Uptober" by the crypto community, the tenth month of the year has recorded positive returns in eight of the last ten cycles. This creates a behavioral bias that attracts seasonal buying flow.

Second, the narrative of Bitcoin as protection against the devaluation of fiat currencies gains traction precisely when European fiscal problems become evident. If the euro loses value due to unsustainable deficits, the argument for Bitcoin's programmed scarcity, with its fixed supply of 21 million units, finds fertile ground.

Third, institutional flows via spot Bitcoin ETFs in the United States remain relevant. Since the approval of these products in early 2024, the market's demand structure has changed. As we analyzed in our coverage of Bitcoin ETFs, institutional capital tends to be more patient and less reactive to short-term fluctuations in the dollar.

What Risks Remain on the Radar

Current resilience does not eliminate risks. If the DXY continues to rise towards 105 points, which would not be absurd if the Fed maintains a hawkish stance, pressure on risk assets could intensify more sharply.

Another factor of concern is the sustainability of the fiscal situation in the United States itself. The increase in interest payments on U.S. debt, which already consumes a significant portion of the federal budget, could create a paradox: the dollar strengthens in the short term due to the interest rate differential but weakens in the long term due to fiscal deterioration. This scenario, by the way, is one of the strongest structural arguments for Bitcoin's value reserve thesis.

For now, the market seems to be pricing in an intermediate scenario: a strong dollar without a collapse of risk assets. It is an unstable balance. The Fed's next decision and U.S. inflation data in the coming weeks will be the catalysts that determine whether Bitcoin maintains this level or if the inverse correlation with the dollar weighs in again.

For Brazilian investors, it is worth remembering that the rise of the dollar also directly impacts the price of Bitcoin in reais. Even if the asset remains stable in dollars, the appreciation of the American currency against the real means that each Bitcoin purchased today requires more local capital. It is a reminder that, in the crypto market, exchange rates are never a detail.