QTREX Quantum is trading 7.5% up at $1.71 after-hours, following the October 6 regular-session close at $1.59; no fresh catalyst has been confirmed. - The move follows a sharp multi-session rally. - Coverage has linked the rally to the October 1 disclosure of independent cryogenic testing results and a pending agreement with the unnamed testing partner; this is prior context, not confirmation of a fresh trigger. - Broader markets also rose on October 6, while the company-specific cause remains unconfirmed.