Builders FirstSource (BLDR) stock jumps as Trump’s $200B mortgage-bond order jolts housing names
New York, January 9, 2026, 12:48 (EST) — Regular session Builders FirstSource shares jumped 10.8% to $123.27 in midday trading, as investors chased housing-linked stocks after President Donald Trump ordered a $200 billion purchase of mortgage bonds. The trade is simple: cheaper mortgages can pull buyers back in. For a supplier tied to new-home construction and repair work, even a small shift in demand can swing volumes and margins. It also lands at a jittery moment for anything rate-sensitive. Investors have been punishing housing names on affordability worries, then snapping them up on any hint that borrowing costs might ease.