New York, February 3, 2026, 05:29 (EST) — Premarket.
- Rambus shares dropped roughly 14% in premarket trading following its quarterly results and updated outlook
- The company reported a one-time supply chain disruption that affected product shipments in the near term
- Investors are watching the regular-session open closely to see if the selloff persists
Rambus shares were down 14.4% to $97.37 in premarket trading Tuesday, deepening the steep drop for Nasdaq-listed RMBS after its earnings report, data from Public.com shows.
The move comes just before the U.S. cash open, following the company’s record 2025 results. Yet, it also flagged a near-term supply hit. For traders, that combination often weighs heavier than the past numbers.
Rambus, known for memory-interface chips and tech licensing in high-performance computing—spanning data centers and AI—just saw its stock gap sharply after earnings. That kind of move usually shifts focus straight to management’s comments on upcoming shipments and next quarter’s pace.
In an SEC filing, the San Jose-based company reported fourth-quarter GAAP revenue of $190.2 million, with product sales hitting a record $96.8 million. Non-GAAP diluted earnings came in at $0.68 per share. For the first quarter, it projects product revenue between $84 million and $90 million, alongside royalty revenue ranging from $61 million to $67 million. The company cautioned that reaching those revenue targets depends on securing new customer contracts. “2025 was a record-breaking year,” said Luc Seraphin. SEC
Rambus is zeroing in on “licensing billings,” a metric it describes as invoiced amounts to licensing customers, adjusted for some advanced payments. The company expects licensing billings between $66 million and $72 million in Q1, with contract and other revenue forecasted at $21 million to $27 million.
On the earnings call, CFO Desmond Lynch flagged a one-time supply chain hiccup, pegging the first-quarter revenue hit at “around a low double-digit million” range. He added the company plans to rebuild inventory by quarter-end and aims for a bounce-back in growth come Q2. Seraphin noted customers are facing longer lead times, expecting supply constraints to limit demand more than the other way around. He also flagged Intel and AMD platform rollouts as a bottleneck for newer memory-module products like MRDIMM. The Motley Fool
The stock had already fallen in after-hours trading on Monday, sliding 12.9% despite adjusted earnings meeting analyst expectations and revenue beating consensus slightly, according to Investing.com.
The next few hours could still shift the scene. Premarket trading tends to be lighter than the main session, and big swings often fade once regular liquidity comes back and investors have time to mull over the guidance.
At 9:30 a.m. ET, all eyes will be on the stock to see if it steadies following the supply-chain remarks. Traders will also be scrutinizing the numbers to judge if the management’s promise of a second-quarter rebound holds up beyond just talk.
