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SPYG: Rates Headwind, Weak Growth Regime
🎯 The Alpha Brief: SPDR® Portfolio S&P 500 Growth ETF (SPYG)
SPDR® Portfolio S&P 500 Growth ETF closed its latest session at $99.71, positioned -3.0% relative to its 10-month SMA.
SPYG remains in a weak regime, with price 3.0% below its 10-month trend line and relative strength still lagging, which fits a growth factor tape facing an extreme negative macro impulse and a rates-up headwind. Compressed momentum leaves room for mean reversion, but until yields stop pressuring duration-sensitive leadership, the fund’s tech and communication-services concentration is more exposed to valuation compression than positioned for clean breakout leadership.
On March 18, the Fed held the policy rate at 3.5% to 3.75% and kept a data-dependent stance while noting elevated uncertainty, which reinforces the valuation headwind already showing up in SPYG’s negative macro and rates signals.
Recent AI earnings strength from NVDA and MSFT has not been enough to overcome firmer inflation and a steady Fed, which helps explain why SPYG is still below trend and relatively lagging instead of reasserting growth leadership.
Here is our 5-Lens Regime Map. 🧵👇
1️⃣ ABSOLUTE TREND: Downtrend (-3.0% vs 10-Mo SMA). The current regime is Compressed (Mean Reversion Risk) | -8.8% from 12-Mo High - 46.1% from 12-Mo Low.

2️⃣ RELATIVE LEADERSHIP: Lagging (-2.4% vs Ratio 10-Mo SMA). Signal: Relative Range-bound.

3️⃣ RISK: Market-Linked (Neutral Beta) • Within Range • Strong Efficiency • 6-Mo Low (Momentum Lag)

4️⃣ MACRO: Moderately Coupled • Extreme (-) • Rates UP → Moderate Headwind • Z-Score -2.4

5️⃣ FX: FX Neutral • Stretched (+) • Dollar UP/DOWN → Limited Signal • Z-Score +1.6

📅 Data as of: 2026-03-25
Mean-reversion assessments are based on 3-year statistical distributions (Z-scores).
Romain Gandon
CEO, Quantlake
Disclaimer: This report is for informational and educational purposes only and does not constitute investment advice.



