From E-Trade wiki--

Morgan Stanley acquisition

On February 20, 2020, Morgan Stanley announced the acquisition of E-Trade in an all-stock transaction valued at approximately $13 billion, the largest U.S. bank acquisition since the 2008 financial crisis.[20] E*TRADE shareholders received 1.0432 Morgan Stanley shares per E-Trade share, representing a 30.7% premium. The deal closed on October 2, 2020, following Federal Reserve approval.[21] At closing, E-Trade had 5.2 million client accounts and over $360 billion in retail client assets.[22] Between March and September 2023, E-Trade brokerage accounts were migrated to Morgan Stanley systems in phases, with the final wave completed over the Labor Day weekend in September 2023.[23] The E-Trade brand was retained, operating as "E*TRADE from Morgan Stanley."