Why Martin Marietta stock just hit a record — and what basic materials traders watch next
New York, January 10, 2026, 13:49 EST — Market closed Shares of Martin Marietta Materials Inc jumped 4.6% on Friday, closing at a record $666.67 and thrusting the basic materials company back into the spotlight. Timing is crucial. Building materials shares are moving once more in sync with interest rates, as investors track mortgage expenses and shifts in U.S. policy…