Moderna to replace Warner Bros Discovery in Nasdaq 100

• Moderna, the vaccine maker, gains inclusion in the prestigious Nasdaq 100 index starting October 9
• Warner Bros Discovery faces removal from multiple major indexes (Nasdaq 100, MSCI, S&P) due to its pending merger with Paramount Skydance
• The Warner Bros Discovery-Paramount Skydance merger is expected to close on October 6 after months of delays

Summary: Moderna to Replace Warner Bros Discovery in Nasdaq 100

Key Development:

Nasdaq announced Thursday that Moderna (MRNA) will replace Warner Bros. Discovery (WBD) in the Nasdaq 100 index, effective October 9.

Companies Involved:

• Moderna: Vaccine manufacturer gaining inclusion in the prestigious tech-heavy index
• Warner Bros. Discovery: Media conglomerate being removed from the Nasdaq 100

Market Context:

Warner Bros. Discovery faces broader index exclusions beyond just the Nasdaq 100. The company is also set to be removed from indexes managed by major providers including MSCI and S&P. This widespread removal is linked to Warner Bros. Discovery's expected merger with Paramount Skydance, scheduled to close on October 6 after experiencing a months-long delay.

Market Implications:

Index rebalancing events like this typically trigger significant trading activity as passive funds tracking the Nasdaq 100 must sell Warner Bros. Discovery shares and purchase Moderna stock to maintain alignment with the index. This mechanical buying and selling can create short-term price pressure on both securities.

For Moderna, inclusion in the Nasdaq 100 represents enhanced visibility and liquidity, as the index is tracked by numerous exchange-traded funds and institutional investors. The vaccine maker gains access to a broader investor base through this designation.

Warner Bros. Discovery's removal reflects the company's transitional status amid the pending merger and potentially signals concerns about its market positioning or capitalization relative to index requirements.

Effective Date:

The index change becomes official on October 9, giving fund managers approximately one week to adjust their holdings accordingly.