Source

Primary methodology / consultation receipt for the S&P leg of the lane.

Key facts:

• S&P DJI consultation closed May 28, 2026.
• Proposed S&P Composite 1500 change: shorten IPO seasoning from 12 months to six months.
• Proposed MegaCap exceptions: waive the 0.10 IWF minimum and the Financial Viability criteria for qualifying MegaCap companies.
• The consultation explicitly says the changes would not automatically result in a MegaCap company's S&P 500 entry; new constituent selection remains at Index Committee discretion.
• For S&P TMI / Completion / Dow Jones U.S. Total Stock Market Index, the proposal discusses fast-track addition of qualifying MegaCap IPOs, assessment from first-day close, and five business days' lead time after announcement.
• Proposed implementation date, if adopted, was before the market open on Monday 2026-06-08 unless otherwise announced.
• S&P also asked whether MegaCap IPO float increases after lockup should be implemented gradually or in tranches.

Interpretation for the lane: S&P is not the same as Nasdaq. Treat S&P 500 inclusion as conditional / committee-driven. Treat TMI / Completion / TSM as the more immediate S&P-family passive-flow watch if final methodology adopts the proposal.