QuantumSi is trading at $1.15, up 7.46% after hours, apparently following interim Proteus data presented at World HUPO showing the developmental platform outperformed Platinum Pro on several measures.

  • The price compares with the $1.07 September 30 regular-session close.
  • Shares also closed up 11.68% on September 30 and 20.52% on September 29, according to the provided price context.
  • In a control-peptide study, Proteus showed 30 times more alignments; it remains in development and is not fully optimized.