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Reconstitution: Nasdaq selects the constituents (i.e., the stocks included in the index) once annually in September . This is when companies may be added or removed from the index based on eligibility criteria.
Rebalancing: The index is rebalanced quarterly in March, June, September, and December. This process adjusts the weighting of the stocks within the index based on updated market capitalizations.

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To: Return to Sender who wrote (94589)	6/20/2025 12:35:56 PM
From: Return to Sender	Respond to of 95383

From a Search Labs \| *AI Overview of the SOX Index... RtS:* The SOX Index, which is the PHLX Semiconductor Sector Index, undergoes both reconstitution and rebalancing. Reconstitution: Nasdaq selects the constituents (i.e., the stocks included in the index) once annually in September. This is when companies may be added or removed from the index based on eligibility criteria. Rebalancing: The index is rebalanced quarterly in March, June, September, and December. This process adjusts the weighting of the stocks within the index based on updated market capitalizations. So, while the list of stocks in the index (the constituents) is updated annually in September, their weights within the index are adjusted quarterly. Rebalancing changes are announced in early March, June, September, and December and become effective at market open of the trading day following the third Friday in those months