Bitcoin underperforms against US dollar amid recent rally, breaking pattern seen since 2015

Bitcoin has declined more sharply than the US dollar since May, a divergence that breaks from the playbook investors have relied on for years. BTC, which peaked near $97,860 in January 2026, has slid to approximately $63,000 as of early August, representing a year-to-date drawdown of roughly 25-31%. Meanwhile, the DXY, the index measuring dollar strength against a basket of major currencies, sat at 100.14 as of late July. In plain English: the dollar is holding its ground while Bitcoin is not.

The numbers tell an uncomfortable story

Bitcoin reached all-time highs above $126,000 back in October 2025, a level that felt like validation for an entire asset class. By January 2026, BTC was still trading near $97,860.

By late May 2026, Bitcoin was bouncing between $73,105 and $81,046. That range might sound respectable in isolation, but it represented a steep fall from the January peak. By August 1, 2026, BTC had dropped to around $63,000, putting the total decline from its October 2025 all-time high at roughly 50%.

The DXY holding above 100 is significant. A strong dollar typically creates headwinds for risk assets, and Bitcoin has behaved more like a risk asset than a safe haven in 2026. The correlation between Bitcoin weakness and dollar strength isn’t new, but the degree of Bitcoin’s underperformance relative to the dollar during what was supposed to be a continuing bull market is genuinely unusual.

Why this cycle feels different

Bitcoin’s run to $126,000 in late 2025 was fueled by institutional adoption, ETF inflows, and post-halving supply dynamics. But the follow-through hasn’t materialized the way bulls expected.

The dollar’s resilience reflects a monetary policy backdrop that hasn’t been as accommodative as crypto markets needed. When the DXY is firm, it signals tighter global dollar liquidity, which historically squeezes speculative assets first.

What this means for investors

Investors who positioned for Bitcoin to outperform the dollar during this rally phase have been wrong. A 25-31% YTD decline while the dollar stays firm is the kind of divergence that forces portfolio reassessments.

For traders watching the DXY as a leading indicator, as long as the dollar index holds above 100, Bitcoin faces a structural headwind. Previous cycles suggest that BTC’s strongest outperformance periods coincide with DXY weakness, typically readings below 95.

There’s a contrarian case to be made. A 50% drawdown from all-time highs has historically represented attractive entry zones for long-term Bitcoin holders. The 2022 cycle saw BTC fall roughly 77% from its peak before staging a recovery that eventually produced new highs. At $63,000, Bitcoin is well above its previous cycle lows.