📊 Hedging Tokenized Equities: 24/7 Perps vs US Market Gaps

Can 24/7 equity perps (like Binance USDⓈ-M perps on TSLA, NVDA, AAPL) hedge stock-based prediction markets through overnight gap risk?

We analyzed 1,663 US market opens across 12 equity perps and 1,276 real Polymarket markets to test gap pricing, session volatility, and off-hours microstructure signals.

🔑 Key Takeaways

1. The Perp Prices the Gap First:

   Regressing the US opening gap against the Binance perp move gives a slope of 1.00 ($R^2 = 0.998$). Out of a median 74 bps opening gap, the unpriced residual at 09:29 ET is just 4.3 bps.

2. Off-Hours Signals Offer No Alpha:

   Off-hours VPIN and taker flow don't predict unpriced residual gap risk. They correlate with the gap only because flow moves the perp price itself.

3. Session-Aware Volatility ($\sigma$) is Crucial:

   Switching from standard 24/7 crypto "wall-clock" volatility to Session-Aware $\sigma$ cut P&L spread by 57% and reduced 5% Expected Shortfall to $-\$526$ (at a $\$27$ hedge cost vs $\$83$).

4. Crypto Alarms Fail on Equities:

   Standard 24h volume Z-scores trigger false alarms on ~50% of opening minutes due to regular session opens. Slot-to-slot session baselines fix this to ~1%.

📖 Read the full study on DEV Community:

https://dev.to/followsm/hedging-polymarket-stock-markets-with-247-equity-perps-session-microstructure-opening-gaps-and-5gj8

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