Spotlight: Rambus Stock Falls 23% a Day After Surge

Rambus Inc. shares fell 23% amid concern that the previous day’s surge pushed the stock too high given the Mountain View-based technology company’s prospects. Shares soared Monday after a trade publication reported that computer memory makers can’t agree on a standard to compete with Rambus’ products. That rally prompted Robertson Stephens & Co. to cut its investment rating on the stock to “long-term attractive” from “buy.” Rambus shares fell $19.50 to close at $65 on Nasdaq.