Lam Research Joins S&P 100, Secures Automatic Buys from $29.4B ETF
Lam Research was one of four AI-focused firms added to the S&P 100 in the March 6 quarterly rebalance, joining Micron, Applied Materials and GE Vernova. The iShares S&P 100 ETF, with $29.4 billion in assets, must now add Lam Research shares, triggering price-insensitive buying.
1. Quarterly Rebalance Adds Lam Research
The S&P Dow Jones Indices implemented its quarterly rebalance effective March 6, adding Lam Research alongside Micron Technology, Applied Materials and GE Vernova to the S&P 100, reflecting the growing influence of AI infrastructure companies among the largest U.S. firms.
2. Index Fund Buying Pressure
Inclusion in the S&P 100 mandates that tracking funds such as the iShares S&P 100 ETF, which holds $29.4 billion in assets, purchase Lam Research shares, creating automatic, price-insensitive demand at the next rebalance.
3. Deepening AI Infrastructure Exposure
The S&P 100’s Information Technology allocation, already 39.4% of the index, will rise further with Lam Research’s addition, underscoring investor focus on semiconductor equipment providers that supply AI chipmakers.