Fed decisions and the dollar index: why India feels every move

The dollar index in one paragraph

The dollar index measures the US dollar against a basket of major currencies, dominated by the euro. It is a quick proxy for broad dollar strength. When the index rises sharply, most emerging-market currencies weaken at the same time, and the rupee is rarely an exception.

This is why the rupee can lose ground on a day with no Indian news at all. The move originated in Washington or in a US inflation release, not in Mumbai.

Rate differentials and carry

Global investors compare the yield they earn holding dollars against the yield from holding rupees, adjusted for expected currency movement. When US yields rise relative to Indian yields, holding dollars becomes relatively more attractive and capital rotates.

Forward points in the USD/INR market embed this differential. A wide forward premium means the market expects the rupee to depreciate over the contract period — useful information if you are hedging future dollar income.

Practical takeaway

Watch US CPI release dates and Fed meeting dates alongside Indian data. For most people converting money a few times a year, the useful habit is checking whether the current rate sits near the top, middle or bottom of the last three months' range before pressing send.