NASDAQ:QUMSR

Quantumsphere Shares Flat After Holiday Reopen With $300 Million SPAC Deal Ahead

Quantumsphere Shares Flat After Holiday Reopen With $300 Million SPAC Deal Ahead

Quantumsphere Acquisition Corp. shares did not trade by midday in the U.S. on Tuesday, with QUMS at $10.19 and showing zero volume. That left the blank-check name on the sidelines as the Nasdaq climbed. Robinhood lists its market cap at roughly $116.2 million and average daily volume a little above 2,000 shares. Tech and chip stocks led early Tuesday after U.S. markets reopened from the Memorial Day break, with the Nasdaq Composite up 1.05% and the S&P 500 higher by 0.61% as of 11:22 a.m. ET, according to Reuters.
May 26, 2026