According to ChainCatcher, on market open today (April 29), NXP Semiconductors (NXPI.O) surged 21.7% following strong second-quarter guidance. Sitime Corporation (SIMO.O) jumped 35% after its first-quarter results and second-quarter outlook exceeded expectations. On Semiconductor (ON.O) rose 6.4% and Microchip Technology (MCHP.O) gained 4.8% amid semiconductor sector strength.