Each indicator in the composite score is selected based on backtesting against historical stress events.
High Yield Credit Spread
FRED (BAMLH0A0HYM2)
Low: 7
Weight: 20%
The spread between high yield (junk) bonds and treasuries. Widens sharply during stress as investors demand more compensation for risk.
Interpretation
Higher = more stress. During crises, spreads can exceed 10%. Normal range is 3-5%.
Backtest Performance
Signal Ratio: 2.20x | Detection: 100% (7/7 events)
Investment Grade Credit Spread
FRED (BAMLC0A0CM)
Low: 6
Weight: 15%
Option-adjusted spread for investment grade corporate bonds vs treasuries. Covers the full IG spectrum including BBB (VIF analysis showed BBB was redundant).
Interpretation
Higher = more stress. IG spreads widen when investors flee corporate bonds for safer assets.
Backtest Performance
Signal Ratio: 2.15x | Detection: 100% (7/7 events)
VIX (Volatility Index)
FRED (VIXCLS)
Low: 25
Weight: 15%
The 'fear gauge' - measures expected 30-day S&P 500 volatility implied by options prices.
Interpretation
Higher = more fear. Above 30 is elevated, above 40 is panic.
Backtest Performance
Signal Ratio: 1.90x | Detection: 100% (7/7 events)
Defensive Rotation (XLU/XLY)
Yahoo Finance (derived)
Low: 22
Weight: 10%
Ratio of Utilities (defensive) to Consumer Discretionary (cyclical). Rising ratio indicates rotation to safety.
Interpretation
Higher = more defensive positioning. Spikes during risk-off periods.
Backtest Performance
Signal Ratio: 1.90x | Detection: 100% (2/2 events)
USD Index
FRED (DTWEXBGS)
Low: 22
Weight: 8%
Trade-weighted US dollar index. Dollar strengthens as global reserve currency during crises.
Interpretation
Higher = flight to safety. Strong dollar can also create EM stress.
Backtest Performance
Signal Ratio: 1.72x | Detection: 100% (7/7 events)
Sector Correlation
Yahoo Finance (derived)
Low: 23
Weight: 8%
Average pairwise correlation of S&P sector ETFs (60-day rolling). High correlation means diversification breaks down.
Interpretation
Higher = more stress. When all sectors move together, it signals panic selling.
Backtest Performance
Signal Ratio: 1.76x | Detection: 100% (2/2 events)
VIX Term Structure
Yahoo Finance (VIX/VIX3M)
Elevated: 77
Weight: 8%
Ratio of spot VIX to 3-month VIX. Normally in contango (>1). Backwardation (<1) signals panic.