BTC and Nifty correlate loosely, spiking in risk-off events (2020, 2022). An AI model can use BTC's 24/7 tape as an early risk signal for next-day Nifty: if BTC sells off overnight, Nifty gap risk rises. Feature btc_overnight_ret added to the Nifty chain model improves regime detection.
The worry: correlation is unstable — it vanishes exactly when you trust it. The filter treats BTC signal as a regime hint, not a trade. Stand aside when cross-asset stress contradicts the Nifty model. Diversify signals, don't marry one.
Q: Do they correlate?
A: Loosely; spikes in risk-off events only.
Q: Use BTC for Nifty?
A: As overnight risk hint, not a trade signal.
Q: Stable correlation?
A: No — vanishes when most needed; use as hint only.
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By Shakti Tiwari · Options AI research pillar. NISM XII certified. Educational only, not investment advice; verify before acting.