BTC / DXY Correlation tracks how Bitcoin moves relative to the US Dollar Index using Pearson correlation on daily log returns.
Negative readings are common when a stronger dollar pressures risk assets; positive readings suggest BTC is ignoring or moving with dollar strength in that window.
What it measures
Assets: BTC-USD and US Dollar Index (DX-Y.NYB) from Yahoo Finance daily closes.
Method: Pearson correlation and OLS beta of BTC on DXY using overlapping trading-day log returns.
Windows: 30d / 90d / 180d of observations, plus a rolling correlation series.
How to read it
Strong inverse (≤−0.45): BTC and DXY move opposite — classic dollar headwind / tailwind dynamic.
Mild inverse: partial FX sensitivity; other drivers still matter.
Neutral: noisy or decoupled in that window.
Positive / decoupled: BTC not behaving like a typical dollar-sensitive risk asset.
Using BTC / DXY Correlation on PEPS Crypto
Pick 30D / 90D / 180D and read the regime headline.
Use the rolling chart to see whether dollar linkage is tightening or fading.
Compare period returns for BTC vs DXY in the context cards.
Pair with BTC / Nasdaq, BTC / Gold, and Correlation Matrix for full macro context.
How it works
- Data refreshes daily (~22:40 local) from Yahoo Finance chart API.
- Returns are log(close_t / close_t−1) on overlapping dates only.
- Regimes: Strong inverse ≤−0.45, Mild ≤−0.15, Neutral >−0.15, Mild+ ≥0.15, Decouple ≥0.45.
- Delta compares correlation to the previous PEPS snapshot for that window.
- Rolling series uses the same window length walked across recent history.
What to consider
- BTC can rally on crypto-native flows while DXY is flat — ρ may rise toward zero.
- A dollar squeeze can hit BTC even if equities hold — watch ρ and beta together.
- Always confirm with volume, funding, and flow tools before acting.
- Negative beta magnitude shows sensitivity to dollar moves in return space.
- Use alongside BTC / Gold when judging inflation vs dollar narratives.
Frequently asked questions
- Why DX-Y.NYB instead of UUP or another ETF?
- DX-Y.NYB is the widely referenced US Dollar Index on Yahoo Finance with consistent daily history. UUP is an ETF proxy and can differ slightly from the index level.
- Should BTC always be negatively correlated with DXY?
- Often, but not always. Liquidity regimes, ETF flows, and crypto-native catalysts can temporarily break the typical inverse link.
- What does beta mean here?
- OLS beta of BTC returns on DXY returns: roughly how much BTC moves when DXY moves 1 unit in return space over the window.
Conclusion
BTC / DXY Correlation answers how synchronized Bitcoin is with dollar strength right now.
Use it as a macro FX filter — then confirm with equity, gold, and crypto flow tools.