Basel III Endgame: What 419 SEC Filings Reveal
Basel III endgame never became law, yet 419 substantive SEC filings prove it functioned as an operative market signal across three distinct industries simultaneously. Morgan Stanley's 10-K disclosed that its risk-weighted assets would rise 40% under the Expanded Approach—nearly three times State Street's 15%—while the G-SIB surcharge offset buried in that same filing contradicts the universal narrative that large trading banks faced unlimited capital pain. The real story emerges only from reading across the chain: bank capital constraints flow downstream through ICE's clearing infrastructure and into the Agency MBS market where mortgage REITs like Bimini Capital hold assets.