QTREX Quantum is trading at $1.43, up 29.99%, in pre-market after its October 1 announcement reported independent cryogenic interconnect testing at 20 millikelvin.

  • Testing found channel isolation exceeding 100 dB; the company said it was finalizing a binding commercial agreement with the testing company.
  • No new October 5 announcement surfaced in the search; an SEC filing confirms the October 1 release.
  • Shares closed at $1.10 on October 2 after two consecutive sharp daily gains, amid already volatile trading.