QNTM ▲ +1.7% - Quantum BioPharma Ltd. $QNTM - Quantum BioPharma to Attend the ArcStone-Kingswood Growth Summit 2026 in Toronto Quantum BioPharma rose 1.7% today following an announcement that the company will attend the ArcStone-Kingswood Growth Summit 2026 in Toronto. The conference appearance may have signaled to investors that management is actively engaging with the investment community and exploring growth opportunities. 15-SEP-2026 08:01 AM ET