Pair Trading Unconventional Assets: SOL vs. NVDA

Why Compare SOL and NVDA?

You might think a crypto token and a tech stock have nothing in common. But in pair trading, you don't need a fundamental link — you need a statistical one. SOL (Solana) and NVDA (NVIDIA, tokenized as an xStock on the blockchain) both belong to the 'high-beta tech' bucket. When risk appetite shifts, they often move together — and when they diverge, the ratio can revert. PairScan lets you screen for such relationships across asset classes, applying the same mean-reversion framework to any pair with sufficient liquidity.

What PairScan Checks

Hurst Exponent

PairScan calculates the Hurst exponent on the log-ratio of the pair. A value below 0.5 suggests mean-reversion — the ratio tends to pull back to its average. For SOL/NVDA, you'd typically see Hurst in the 0.35–0.45 range over a 60-day lookback, but this isn't guaranteed. Where this fails: if the pair enters a trending regime (e.g., SOL moons while NVDA lags), Hurst can spike above 0.5, and the strategy should sit out.

ADF Test

The Augmented Dickey-Fuller test checks for stationarity of the log-ratio. A p-value < 0.05 means you can reject the null hypothesis of a unit root — the ratio is mean-reverting. PairScan requires this threshold to consider a pair tradeable. SOL/NVDA often passes, but only over specific lookbacks (e.g., 30–90 days). Shorter windows may fail due to noise.

Walk-Forward Backtest

PairScan runs a walk-forward backtest with no look-ahead bias: at each step, only past data is used to estimate parameters (Hurst, ADF, half-life). The strategy enters when the z-score of the log-ratio crosses a threshold (e.g., ±2) and exits at zero. For SOL/NVDA, the backtest might show positive expectancy, but the Sharpe ratio is rarely above 1.5 — this isn't magic.

Position-in-Range Zones

PairScan divides the historical range of the log-ratio into three zones: bottom (below 20th percentile), mid (20–80th), top (above 80th). Entries near the extremes have higher probability of reversion. For SOL/NVDA, you'd typically short the ratio when it's in the top zone (NVDA overvalued vs SOL) and go long in the bottom zone. The mid zone is a no-trade area — avoid forcing trades when the ratio is near its median.

Practical Considerations

• Liquidity: Both SOL and NVDA xStock have deep order books, but spreads on the tokenized stock can be wider during volatile hours. Always check the spread before entering.
• Funding costs: If you're trading perpetual futures, funding rates can eat into returns. PairScan doesn't account for funding in its backtest — you need to adjust your expectancy manually.
• Correlation breakdown: Black-swan events (e.g., regulatory news for SOL, earnings miss for NVDA) can break the relationship. No backtest can predict that.

How to Use PairScan for This

Go to pairscan.io/screen, select SOL and NVDA from the asset lists, and run the analysis. You'll see the Hurst, ADF p-value, half-life, and a plot of the log-ratio with entry zones. The free tier gives you full access to the screener — no paywall for checking a pair. If the stats look good, consider a small position with a stop-loss beyond the recent extreme.