Visit the full analysis for the latest explanation of W.R. Berkley Corporation's stock movement.
W.R. Berkley is a large U.S. insurance holding company focused on commercial property-casualty lines, operating through dozens of specialty insurance subsidiaries. Founded in 1967 and headquartered in Greenwich, Connecticut, it is among the largest commercial lines writers in the country. Today's move appears driven primarily by broad strength across the financial and insurance sectors rather than any company-specific development.