What this driver is
Risk-on rotation is a shift in capital allocation from lower-risk assets (Treasuries, defensive sectors, cash) toward higher-risk assets (equities, cyclicals, emerging markets). It signals that investors are becoming more confident in the economic outlook and are willing to accept more volatility in exchange for higher potential returns.
What activates it
The engine watches the SPY to IEF relationship. When equities are outperforming Treasuries over a five-day window, the market is expressing a risk preference. SPY five-day returns positive while IEF is flat or negative is the clearest version of this signal.
The HYG (high-yield bond ETF) and LQD (investment-grade bond ETF) spread also matters. When credit spreads are tightening and high-yield is outperforming, credit investors are also taking on risk. The engine reads this as confirming evidence.
What it connects to
Risk-on rotation tends to benefit:
- Cyclicals — industrials, materials, financials that need economic growth to perform
- Small caps — smaller companies are more economically sensitive and perform better when growth confidence is high
- Emerging markets — typically outperform when global risk appetite is strong
- Growth technology — risk-on reduces the premium investors place on safety
The confirmation question
A one-day equity rally is not a risk-on rotation. The engine requires a sustained five-day pattern. Within that window, the engine looks for multiple assets telling the same story. Equities up, Treasuries down, high-yield tightening, and small caps leading are all consistent with genuine rotation.
How Decifer tracks it
SPY, IEF, HYG, and LQD five-day returns all feed the engine's sensor set. The risk-on rotation driver activates when the pattern across these instruments is consistent with a genuine shift in risk appetite.