Companies added to the MSCI USA Index in Q4?: Will Oklo be added to the MSCI USA Index in Q4 2026?

If Oklo is announced to be or is officially added to MSCI USA Index during October 1, 2026 to December 31, 2026, then the market resolves to Yes. This market concerns the MSCI USA Index, the Standard large- and mid-cap index. MSCI USA Small Cap, MSCI USA IMI, MSCI World as a whole, and ESG or factor variants are separate indexes. The first relevant official MSCI announcement or actual membership change specified by this market must occur during the stated time period. A change announced before that period does not qualify merely because it takes effect during the period. Regular reviews and qualifying off-cycle changes, including IPO fast-track inclusion and corporate-action deletions, can count under INDEXMEMBERSHIP. Use MSCI's official announcements and the MSCI USA INDEX section of the Global Standard review table; the summary of the largest global additions is not the complete USA list. Temporary suspensions, successor continuity, and cancelled or corrected announcements follow the INDEXMEMBERSHIP filing. A scheduled review does not by itself end a quarter-wide observation period. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the MSCI. All trademarks, logos, and brand names are the property of their respective owners.