Overview
- D‑Wave shares fell sharply on Tuesday, closing down about 5.3% after an intraday drop near 10.4% and unusually high trading volume of roughly 54.2 million shares.
- The selloff followed a May 21 Science paper from Flatiron Institute researchers that showed a classical tensor‑network algorithm can reproduce parts of a problem D‑Wave had said required quantum resources.
- Traders also took profits after a recent two‑day rally that pushed the stock higher, and the company’s large post‑IPO gains have left it vulnerable to quick reversals.
- D‑Wave disputed that the Flatiron work overturned its result, saying the new study did not reproduce the full set of observables, problem geometries, or the largest problem sizes from its Science paper.
- The episode highlights how federal support for advanced computing can boost expectations but that investor sentiment for early quantum firms still hinges on technical validation and fast‑moving research advances.