According to UBS, U.S. pension funds and target date funds are projected to purchase approximately $105 billion in U.S. equities this week as part of their end-of-quarter rebalancing. This figure represents the largest amount of stock purchases since the market crash in 2020. Some estimates indicate that pension funds alone may account for around $85 billion of this total, marking one of the highest quarterly buybacks on record. The rebalancing activity comes amid a broader market context where a significant portion of global investments is concentrated in a few stocks and countries, with 65% of the ACWI index tied to one country and 21% in just ten stocks. The next largest country exposure is Japan at 4.7%. Analysts are closely monitoring whether this influx of capital from pension funds will provide short-term support for stock prices.