Basket trade is a type of portfolio management strategy employed by institutional investors to buy or sell a large set of securities simultaneously. This type of trading strategy is usually used to purchase equities in the stock market.

A basket trade may involve buying or selling up to 15 or more securities at once, and can be composed of various security types including stocks, commodities, and derivatives. It is an efficient way of executing transactions when making large-scale purchases and sales in the stock market.

When executing a basket trade, investors set individual weighting criteria for each security within a basket in order to assign value to each. This can be done by selecting investments based on their market capitalization, industry sector or even geographic region. Such factors may allow an investor to reap the benefits of diversifying their portfolio and mitigating risk across a broad range of investments.

Basket trades may also be used to gain exposure to an index by purchasing a group of stocks in one transaction. For example, if an investor wishes to gain exposure in the S&P 500 index, they may purchase a basket of stocks that constitutes the overall index. This eliminates the need to purchase individual stocks, saving costs on transaction fees and time-management for portfolio rebalancing.

Basket trades offer numerous advantages for institutional investors due to their cost-effectiveness, time-saving benefits and exposure to large-scale markets. On top of this, the basket trade strategy allows an investor to have control over the weightings given to each security within the basket. This helps investors define their own risk profile so they can strategically invest in a large number of stocks while limiting their exposure to individual stocks.

Overall, basket trade is a very useful strategy for institutional investors who are looking to make large-scale purchases or sales in the stock market. With the weighting criteria set by the investor, the basket trade strategy is a great way to gain exposure to a range of stocks or commodities, and enables investors to define their risk profile for their portfolio reinforcement.