The US Dollar and Bitcoin: How the Dollar Index Moves Crypto (2026 Guide With Data)

How the US dollar affects Bitcoin, with 2026 data: on days the Fed's broad dollar index rose 0.3% or more, Bitcoin fell 0.87% on average. DXY vs broad index, 2022 and 2024 compared.

Oct 17, 2026 - 18:28

The US Dollar and Bitcoin: How the Dollar Index Moves Crypto (2026 Guide With Data)

Chart of Bitcoin daily returns on strong and weak US dollar days in 2026

Updated October 17, 2026. When the US dollar strengthens, Bitcoin often struggles, and when the dollar weakens, crypto tends to breathe. In 2026, that relationship has been clearer than the link with bond yields: on days when the Federal Reserve's broad dollar index rose by 0.3% or more, Bitcoin fell 0.87% on average, and on days when the dollar fell by 0.3% or more, Bitcoin rose 0.83% (our calculation). This guide explains how the dollar is measured, why it matters for crypto and how to use it, without overselling a relationship that sometimes breaks.

Key takeaways

Two common gauges: the Federal Reserve's Nominal Broad Dollar Index (26 currencies, trade-weighted, January 2006 = 100) and ICE's DXY (6 currencies, dominated by the euro).
Why it matters: a strong dollar tightens global financial conditions, makes dollar debt more expensive abroad and usually reduces appetite for risk assets, including Bitcoin.
2026 data: daily correlation between Bitcoin and the broad dollar index of −0.21 (195 days), stronger than the −0.09 we measured with the 10-year yield.
The 2022 lesson: the broad dollar rose 11.4% from the end of 2021 to September 26, 2022 while Bitcoin fell 58%.
The exception: on January 13, 2025, the broad dollar hit its highest level in the series (130.04) while Bitcoin traded near $94,500. The dollar is one force, not the only one.

How the dollar is measured

	Fed Nominal Broad Dollar Index	ICE US Dollar Index (DXY)
Publisher	Federal Reserve Board (H.10), also on FRED as DTWEXBGS	ICE Futures U.S.
Currencies	26, weighted by US trade	6: euro, yen, pound, Canadian dollar, Swedish krona, Swiss franc
Strength	Includes China, Mexico, Canada and emerging markets	Euro weight above half of the index
Frequency	Daily, published weekly	Real time (futures market)
Free access	Yes (FRED)	Quotes vary by data provider

We use the Fed's broad index in this guide because it is published by a central bank, is free and covers the currencies that matter for global trade.

Where the dollar stands in 2026

Date	Broad dollar index	Bitcoin (Coinbase close)
Dec. 31, 2025	119.75	$87,498
2026 low: Jan. 29, 2026	117.44	$84,513
2026 high: Oct. 1, 2026	121.79	$84,849
Latest: Oct. 9, 2026	121.60 (+1.6% this year)	$82,545

Sources: Federal Reserve via FRED (DTWEXBGS, daily, latest data point October 9, 2026); Coinbase Exchange. The dollar has moved in a narrow range this year, well below its January 2025 record of 130.04.

Why a strong dollar weighs on Bitcoin

Global liquidity: much of world trade and cross-border debt is priced in dollars. A stronger dollar makes that debt harder to service and tends to drain liquidity from risky assets.
Pricing effect: Bitcoin is quoted in dollars. For a European or Asian investor, a rising dollar makes each bitcoin more expensive in local currency, which can cool demand.
Same drivers: the dollar usually rises when the Fed is more hawkish than other central banks, the same environment that pushes up US yields (see our Treasury yields and Bitcoin guide).
Risk-off demand: in a global shock, investors buy dollars as a safe haven and sell volatile assets.

What the data show: our analysis

Daily moves in 2026

Days in 2026 (to Oct. 9)	Number of days	Average Bitcoin daily return
Broad dollar up 0.3% or more	26	−0.87%
Broad dollar down 0.3% or more	22	+0.83%
All days	195	correlation −0.21

Method: daily log changes in DTWEXBGS (FRED) matched with Bitcoin's daily log return (Coinbase Exchange closes, 00:00 UTC). Weekly correlation over 39 five-day periods: also −0.21. Different closing times weaken the measured link. Past relationships do not predict future prices.

Long cycles

Period	Broad dollar index	Bitcoin
Dec. 30, 2021 → Sept. 26, 2022	115.28 → 128.45 (+11.4%)	$46,211 → $19,228 (−58%)
Dec. 29, 2023 → Dec. 31, 2024	118.42 → 129.28 (+9.2%)	$42,063 → $93,354 (+122%)
Dec. 31, 2025 → Oct. 9, 2026	119.75 → 121.60 (+1.6%)	$87,498 → $82,545 (−6%)

Our reading: 2022 fits the textbook: a dollar surge plus Fed hikes crushed crypto. 2024 is the counter-example: the dollar rose 9% but Bitcoin more than doubled, driven by spot ETF inflows and the April 2024 halving (see the halving explained). Crypto-specific demand can overwhelm the dollar effect.

How to use the dollar in your crypto analysis

Check the dollar on big Bitcoin days. If Bitcoin falls while the dollar jumps, the move is probably macro, not crypto-specific.
Watch the Fed versus other central banks. A hawkish Fed against dovish peers lifts the dollar (see our Fed rate decisions tracker).
Combine with real yields. A strong dollar and high real yields together form the toughest backdrop for Bitcoin.
Look at ETF flows. Strong inflows can offset a strong dollar, as in 2024 (see our ETF flows tracker).

FAQ

Does a strong dollar always mean a lower Bitcoin price?

No. The link is negative on average, but 2024 showed that crypto-specific demand can dominate. Treat the dollar as context, not a signal.

What is the difference between DXY and the broad dollar index?

DXY covers six developed-market currencies and is dominated by the euro. The Fed's broad index covers 26 currencies weighted by US trade, including China and Mexico.

Where can I follow the dollar for free?

On FRED (series DTWEXBGS), which republishes the Federal Reserve's data. Our price ticker on BullishStation also shows the DXY.

Why would a European investor care about the dollar?

Because Bitcoin is priced in dollars. If the dollar rises against the euro, Bitcoin can rise in euros even when it is flat in dollars, and vice versa.

Sources: FRED, Nominal Broad U.S. Dollar Index (DTWEXBGS) · Federal Reserve, H.10 Foreign Exchange Rates · Coinbase Exchange, BTC-USD · ICE, US Dollar Index futures

This guide is for information only and is not investment advice. Crypto-assets are volatile and you can lose all the money you invest. Do your own research.