How the MSCI Index Works
The MSCI Emerging Markets Index is one of the most important global market indexes. Many large investment firms use this index to build their portfolios. When the weight of a country changes in the index, funds that follow the index also have to change their investments. This means they may need to buy or sell stocks to match the latest index allocation.
South Korea and Taiwan Took a Bigger Share
Over the past few months, the stock markets of South Korea and Taiwan have seen very strong gains. South Korea has risen by around 115%, while Taiwan has gained about 57%.

Because of this sharp rise, these two markets now make up nearly 50% of the MSCI Emerging Markets Index.
Since the total index allocation must always add up to 100%, a larger share for one country means a smaller share for others. As a result, China’s allocation has fallen by around 16%, India’s by nearly 10%, and South Africa’s by about 8%. Brazil is one of the few countries that has seen a small increase of around 8.5%.
Technology Stocks Drove Most of the Rally
The MSCI Emerging Markets Index has gained around 25% so far this year. But there is an important detail behind this growth. More than 75% of the total gain has come from the technology sector.

Most of this growth has been driven by just three chip-making companies. These companies have played a very large role in pushing the overall index higher. This shows that the strong performance of the index has not been spread across all countries or sectors.
Why India Is Seeing FII Selling
Many investors have become worried because foreign investors have been selling Indian stocks. However, a big reason for this selling may simply be the change in India’s weight in the MSCI index.
When India’s allocation falls, funds that track the index are forced to reduce their holdings in Indian stocks. This selling does not always mean that they have a negative view on India’s economy or stock market. In many cases, they are only following the index rules.
What Could Happen Next?
If the MSCI index allocation changes again in the future, the same funds may have to increase their investments in India. That could lead to fresh buying from foreign investors.
This is a good reminder that index-based fund flows can have a big impact on the market. Looking at the full picture helps explain why foreign investors may be selling today and why that trend could change when index allocations move in the opposite direction.
