New Delhi, Feb. 19 -- Indian equity markets have delivered strong returns over long periods, building deep trust among domestic investors. But trust can quietly turn into concentration. For many Indian portfolios today, the risk is not poor stock selection, it is excessive dependence on a single economy at a time when market sentiment and capital flows suggest that growth, earnings, and innovation are increasingly global.

Home bias, i.e. the tendency to invest overwhelmingly in one's domestic market, is measurable and persistent. When portfolios become structurally tilted toward one country, they inherit that country's sector mix and growth ceiling, often missing out on opportunities across global markets.

Below are six data-backed red ...