SPDR S&P 500 ETF (SPY)
S&P 500 ETF closing price ($, daily)
| Property | Value |
|---|---|
| Category | macro |
| Unit | $ |
| Resolution | 1d |
| Assets | MACRO |
| Tier | Basic |
| API Endpoint | GET /v1/macro/markets |
| Field | spy |
Overview
Daily closing price of the SPDR S&P 500 ETF Trust (NYSE Arca: SPY), the largest and most liquid US equity ETF. SPY tracks the S&P 500 index, the primary benchmark for US large-cap equities.
Interpretation
- Rising SPY: risk-on, easy liquidity, expanding earnings — historically a tailwind for BTC during liquidity-driven regimes.
- Falling SPY: risk-off, tightening liquidity, contracting earnings — historically coincides with BTC drawdowns.
- BTC's correlation to SPY has cycled between near-zero and near-1 across different macro regimes.
Use Cases
- Use as the headline US risk-asset benchmark for BTC cross-asset analysis.
- Compute rolling 30/60/90-day BTC-SPY correlation to identify regime shifts (decoupling vs. risk-on lockstep).
- Track BTC/SPY ratio (computed externally) as a relative-strength gauge for institutional allocation discussions.
API Usage
curl -H "Authorization: Bearer YOUR_API_KEY" \
"https://api.blocklens.co/v1/macro/markets?start_date=2024-01-01&end_date=2024-12-31&limit=365"
Related Metrics
- Invesco QQQ (QQQ) — Nasdaq 100 ETF closing price ($, daily)
- iShares Russell 2000 (IWM) — Russell 2000 ETF closing price ($, daily)
- VIX Volatility Index — CBOE Volatility Index (points, daily)
- US Dollar Index (DXY) — ICE US Dollar Index DX-Y.NYB (points, daily)