QuantumSi is trading 13% up at $1.21 after interim Proteus results showed detection of all 24 proteins in a test panel.

  • Findings were announced September 28 and presented at World HUPO 2026; Proteus detected 24 proteins versus Platinum Pro’s average of 20.3.
  • A report published October 1 also highlighted detection of 18 amino acids and a targeted Q2 2027 commercial launch.
  • Broad indices were up only modestly in the supplied market context.