The SEC’s May 2026 proposal to permit optional semiannual reporting via a new Form 10-S instead of mandatory quarterly 10-Q filings has encountered intense resistance, anchoring the 83.5% market-implied probability that the quarterly requirement remains intact through year-end. Record volumes of comment letters—over 97% negative—highlighted risks to market transparency, price discovery, and investor monitoring, with opposition from the Managed Funds Association and the SEC’s own Investor Advisory Committee underscoring structural concerns. While Chairman Paul Atkins and exchange discussions signal continued interest in flexibility to curb short-termism, the proposal faces extensive staff review, potential revisions, and a formal Commission vote before any rule can take effect. With the December 31, 2026 resolution deadline approaching and no final adoption yet, procedural timelines and stakeholder pushback continue to dominate trader consensus.