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How the Looming US Dollar Decline is Paving the Way for Bitcoin's Ascent

· By Dave Wolfy Wealth · 3 min read


The US dollar has long held a dominant position in global finance, but recent trends suggest this dominance may be waning. Analyzing the performance of the US dollar index during the first half of 2025 reveals a striking development: a steep decline of 10.7%, marking the weakest start for the dollar in over half a century. This significant depreciation raises important questions about the future trajectory of the dollar and its impact on alternative assets, particularly Bitcoin.

Historical Patterns in Dollar Performance

A review of the US dollar index from 1968 onwards shows clear cyclical fluctuations in its strength, with positive gains (green bars) and losses (red bars) in the first half of each year. The pronounced drop in early 2025 is reminiscent of similar sharp declines in the past such as in 1973. Historically, these periods of dollar weakness have coincided with substantial rallies in Bitcoin—a trend rooted in the inverse relationship between the two.

The Inverse Relationship Between the Dollar and Bitcoin

Bitcoin's price movements have often moved in opposition to the dollar’s performance. This inverse correlation means that when the dollar loses value, Bitcoin tends to rise, and vice versa. For instance:

  • In January 2017, March 2020, and October 2022, sharp declines in the dollar coincided with strong Bitcoin rallies.
  • Conversely, in January 2018 and May 2021, dollar strength was paired with Bitcoin price pullbacks.

Quantitatively, Bitcoin exhibits one of the highest sensitivities to the dollar among major asset classes, with a sensitivity coefficient near -1.5. This implies that for every 1% move in the dollar, Bitcoin typically moves approximately 1.5% in the opposite direction over longer periods. For context, gold’s sensitivity stands at around -1.0, while the S&P 500 lies at approximately -1.03, reinforcing Bitcoin’s position as a prime beneficiary of a weakening dollar.

Why the Dollar Might Weaken Further

Several strategic and political factors suggest the dollar’s decline could continue. Under the guidance of the Trump administration, there has been an intentional push toward weakening the US dollar to enhance the global competitiveness of American goods and labor. The mechanism for achieving this is primarily monetary policy adjustment—specifically, reducing interest rates to lower the attractiveness of holding dollars.

  • Donald Trump has been openly advocating for significant Federal Reserve rate cuts, including calls for a 3% reduction.
  • This pressure has reportedly caused discomfort for current Fed Chair Jerome Powell, with speculation about his potential resignation.
  • Looking ahead, Trump anticipates appointing a new Fed Chair by May 2026, one inclined to aggressively pursue rate cuts and adopt more dovish monetary policy.

Lower US interest rates relative to global rates would incentivize capital outflows and weaken the dollar further, setting the stage for alternative assets to gain favor.

Implications for Bitcoin Investors

Given Bitcoin’s pronounced inverse correlation with the dollar, a prolonged decline in the US dollar index could serve as a powerful macroeconomic catalyst propelling Bitcoin prices higher. Investors and market watchers should consider the potential impact of these shifting dynamics, especially as monetary policy changes gain momentum.

Bitcoin’s limited supply and decentralized nature make it an attractive hedge in scenarios of currency debasement or weakening fiat reserves. In a landscape where the dollar’s strength is diminishing, Bitcoin may increasingly be viewed not just as a digital asset but also as a strategic store of value.

Conclusion

The steep decline in the US dollar’s value in the first half of 2025 marks a significant turning point with broad ramifications for global markets. Historical patterns and quantitative data underscore Bitcoin’s sensitivity to dollar fluctuations, positioning it to potentially benefit from further dollar weakness. As policymakers steer US monetary policy toward lower interest rates, the resulting dollar depreciation is likely to accelerate Bitcoin’s ascent as a favored alternative asset for investors seeking protection against currency decline and inflationary pressures.

Understanding this interplay between the US dollar and Bitcoin is essential for investors strategizing in an evolving financial environment where traditional currency dominance faces mounting challenges.

By Wolfy Wealth - Empowering crypto investors since 2016

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Disclosure: Authors may be crypto investors mentioned in this newsletter. Wolfy Wealth Crypto newsletter, does not represent an offer to trade securities or other financial instruments. Our analyses, information and investment strategies are for informational purposes only, in order to spread knowledge about the crypto market. Any investments in variable income may cause partial or total loss of the capital used. Therefore, the recipient of this newsletter should always develop their own analyses and investment strategies. In addition, any investment decisions should be based on the investor's risk profile.

About the author

Dave Wolfy Wealth Dave Wolfy Wealth
Updated on Aug 10, 2025