Bitcoin Price: Current Bitcoin spot price in US dollars, updated every 2 minutes (CoinGecko or Coinbase; each value names its own) Source: CoinGecko or Coinbase, Every 2 minutes.
Net Liquidity: Net liquidity proxy - Fed balance sheet minus reverse repo and Treasury account balances Source: PreReason's calculation from the Federal Reserve Board's H.4.1 (balance sheet, TGA) and the New York Fed (reverse repo), Recomputed hourly; its inputs weekly (H.4.1) and each business day (reverse repo).
10-Year Treasury: The 10-year Treasury par yield, in percent, from the US Treasury's Daily Treasury Par Yield Curve Rates. Business days, priced at about 3:30 in the afternoon, New York time. Read from FRED's copy of these rates until 2026-09-28, which is where its history before 1990 comes from. Source: U.S. Department of the Treasury, Business days, each evening.
UUP (US Dollar ETF): Share price of the Invesco DB US Dollar Index Bullish Fund (UUP), a proxy for the dollar index (DXY), not the index level (updates every 15 min) Source: Finnhub, Every 15 min (market hours).
SPY (S&P 500 ETF): SPDR S&P 500 ETF Trust - proxy for S&P 500 index (updates every 15 min) Source: Finnhub, Every 15 min (market hours).
QQQ (Nasdaq 100 ETF): Invesco QQQ Trust - proxy for Nasdaq 100 index (updates every 15 min) Source: Finnhub, Every 15 min (market hours).
VXX (VIX Futures ETN): Price of the iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX), an exchange traded note issued by Barclays Bank PLC that tracks short-term VIX futures: a note, not a fund, and not the VIX index level (updates every 15 min) Source: Finnhub, Every 15 min (market hours).
EUR/USD Exchange Rate: US dollars per euro (EUR/USD), from the Federal Reserve Board H.10 release, each business day. Source: Federal Reserve Board (H.10), Weekly, each H.10 release.
Hash Ribbon: Hash rate momentum indicator - 30-day vs 60-day moving average ratio Source: PreReason's calculation from mempool.space's daily hash rate (the ratio of its 30 day and 60 day averages), Recomputed hourly; its input daily.
Correlations
Measured over 30 days:
Bitcoin Price and Net Liquidity
Bitcoin Price and SPY (S&P 500 ETF)
Bitcoin Price and UUP (US Dollar ETF)
Bitcoin Price and VXX (VIX Futures ETN)
Bitcoin Price and QQQ (Nasdaq 100 ETF)
Bitcoin Price and EUR/USD Exchange Rate
Net Liquidity and SPY (S&P 500 ETF)
SPY (S&P 500 ETF) and VXX (VIX Futures ETN)
10-Year Treasury and SPY (S&P 500 ETF)
Hash Ribbon and Bitcoin Price
Questions about the Correlation Check briefing
What is in the Correlation Check briefing?
How Bitcoin correlates with equities, volatility, and the dollar across 10 metric pairs (30 and 90 day windows). It holds 9 metrics and 10 correlation pairs over 30 days, each figure with the date it describes and the source it came from.
Which plan reads the Correlation Check briefing?
Every PreReason account reads it, the free plan included.
How does an AI agent read the Correlation Check briefing?
Over MCP, with the get_context tool and the briefing id cross.correlations. Over REST, with GET https://api.prereason.com/api/context?briefing=cross.correlations and an API key, as Markdown (the default) or JSON (format=json).
Can I read the Correlation Check briefing as of a past date?
Yes, with date=YYYY-MM-DD. A dated read serves only periods released by that date, and each figure says when it was public, or that it may be a later revision. How far back depends on the plan; on the Free plan: Today + last 30 days. Higher plans reach further.
Where does the data in the Correlation Check briefing come from?
Each figure names its source and the date it describes. The data sources page (https://www.prereason.com/data-sources) lists every source PreReason reads.
API: GET /api/context?briefing=cross.correlations
Format options: ?format=markdown (default) or ?format=json