Retail investors often look to the moves of large institutional players for direction, especially Foreign Institutional Investors (FIIs), whose decisions are usually backed by deep research and a long-term outlook. In a fascinating trend from the BSE 1000 universe, around 51 stocks have seen FII holdings more than double in March 2026 compared to the same period in March 2025. The journey wasn’t linear; the stakes moved up and down through the year, but when viewed from FY25 to FY26 March quarters, the overall shift clearly shows a strong accumulation pattern.What makes this even more interesting is the price action that followed. Nearly 22 of these stocks delivered gains of over 25% in the past year. Zooming in further, we highlight 14 standout names where FIIs doubled their holdings and share prices surged between 50% and 400%. Among them, five stocks went a step further and delivered multibagger returns, turning into standout wealth creators over the period. (Data Source: ACE Equity) ​Institutional push