The S&P 500 completed its quarterly rebalance at today's market close, officially integrating newly added companies into the benchmark index. The adjustment marks the latest scheduled update to the index composition, which is reviewed and modified four times per year to reflect changes in market capitalization and eligibility criteria. Market participants are now turning attention to potential candidates for inclusion in next quarter's rebalance, as index membership continues to serve as a key benchmark for institutional allocation and passive fund flows.