The Causal Chain: US Yields → Dollar → FII Flows → Your Nifty Portfolio

US 10Y Yield Rises

When the Federal Reserve signals tighter policy or US inflation data surprises, bond yields rise. Higher yields mean higher returns for holding US dollars, making dollar-denominated assets more attractive.

Dollar Strengthens (DXY Up)

Capital flows into USD-denominated assets. The Dollar Index rises. A stronger dollar makes emerging market assets less attractive because the rupee typically weakens, reducing dollar-denominated returns for foreign investors.

FIIs Reduce India Exposure

Global funds rebalance. India is typically an overweight position for most EM funds. When the dollar strengthens, they trim overweight positions first. This is mechanical rebalancing, not a judgment on India's fundamentals.

Nifty Falls, Breadth Narrows

FIIs own the largest, most liquid stocks. Their selling hits Nifty directly. DIIs typically absorb some of the selling, creating a floor — but only in the sectors where DII buying is concentrated (typically banks and financials).

Sector Divergence Emerges

FII-heavy sectors (IT, Energy) fall first and fastest. DII-heavy or defensive sectors (Banks, Pharma) hold better. This creates the narrow leadership pattern: 1-2 sectors rising, everything else falling.