Risk-On / Risk-Off (RORO) Index
One number for the market's mood across asset classes — a live 0-100 risk-on / risk-off (RORO) score, computed from Yahoo Finance (no key, nothing stored). On any day capital is either reaching for risk or fleeing to safety, and the signal lives in the relationships between markets, not any single price. This blends four classic cross-asset gauges — stocks vs long bonds (SPY/TLT), high-yield vs investment-grade credit (HYG/LQD), copper vs gold (the growth metal vs the haven) and the VIX (inverted) — into one score: high = risk-on (greed), low = risk-off (fear). The score endpoint returns the composite, each gauge's contribution and a regime label; the components endpoint returns the four underlying ratios with where each sits in its recent range (its percentile), so you can see what is driving the mood. The cross-asset risk-sentiment / RORO composite cut — distinct from the intermarket-ratios feed (raw ratios), the volatility-index API and the price APIs. It synthesises the regime, not the parts.
api.oanor.com/riskappetite-api
