JPMorgan Chase promoted Doug Petno and Troy Rohrbaugh to co-presidents while longtime executive Marianne Lake retires, signaling another step in identifying Jamie Dimon's successor. The 70-year-old CEO has spent two decades reshaping his leadership team to prepare for transition, making this latest reorganization a significant development in the bank's succession planning.

Micron shares surged 16% after blockbuster earnings, lifting the PHLX Semiconductor Index by 3.6% and easing concerns about AI demand sustainability. Meanwhile, Apple stock dropped 6% as soaring memory chip costs forced price increases on Macs and iPads, illustrating how semiconductor shortages create winners and losers across the tech sector.

Bayer jumped 16% in Frankfurt after the Supreme Court ruled the company cannot face state liability claims over Roundup cancer warnings when federal regulators didn't require warning labels. Conversely, Strategy plummeted 9% as the bitcoin-focused firm struggles with its preferred stock trading below par value, limiting funding for future cryptocurrency purchases amid bitcoin's 50% decline since October.

Major indexes ended mixed with the Dow industrials rising 0.1% and Nasdaq falling 0.5%. Caterpillar led Dow gains with a 6% advance, while the S&P 500 remained largely unchanged. These divergent moves reflect how investors are parsing opportunities and risks across different sectors.