Why Is IonQ, Inc. ( $IONQ ) Stock Up +6.35% Today? (Find out why any stock moved today on Tickeron.) Shares climbed 6.35% to $45.24, up from a prior close of $42.54. The primary catalyst was IonQ's announcement of the industry's first end-to-end real-time quantum error correction decoder. A new partnership with Nvidia to deploy its Superion 256 system provided a second, reinforcing driver. $RGTI $QBTS $UMAC $QUBT $QMCO