The correlation between bitcoin's price and the Dollar Index has reached its most extreme level in nearly four years, with a 30-day correlation coefficient of -0.90. This inverse relationship indicates that when the dollar weakens, bitcoin strengthens, and vice versa.

However, it's essential to consider that bitcoin's 24/7 trading structure can influence this reading. The coefficient of determination suggests that about 81% of bitcoin's short-term price movements are statistically linked to changes in the Dollar Index. After hitting highs above $79,000, bitcoin's rally has stalled, coinciding with the Dollar Index's bounce to 98.75. Broader macro risks, including elevated oil prices and the U.S.-Iran standoff, appear to support the Dollar Index's outlook.

Analysts note that these factors could hinder bitcoin's continued rally, as they keep inflation concerns alive and maintain risk premia. Despite sustained inflows into U.S.-listed spot exchange-traded funds, industry leaders remain cautious. Some predict that bitcoin may not experience a significant recovery until October or November, aligning with its four-year reward halving cycle. The ether-bitcoin ratio has fallen nearly 3% to its lowest level since March 15, confirming a downside break from its short-term ascending channel and pushing it below the broader downtrend line.

This breakdown suggests continued underperformance of ether relative to bitcoin.