It leaves the index. Bitcoin doesn’t automatically leave the vault.

In its review announced on 11/11/2026, MSCI placed STRATEGY A among the exclusions from the MSCI USA. The change is scheduled to take effect at the close of November 30.

The direct effect is on the index’s composition and the rebalancing of funds that track it. This could put pressure on MSTR shares, but removing a stock from an index is not an order for the company to sell its BTC.

The market is already volatile enough without conflating two different things. To track the impact on crypto, distinguish between stock flows, financing conditions, and actual decisions about the treasury.

Source: MSCI, November 2026 review, official Global Standard Indexes list.