Micron Technology Inc., the largest U.S. maker of memory chips, jumped in late trading after giving an upbeat forecast for the current quarter, helped by demand from networking, data-center and automotive customers. Sales will be about $7.5 billion in the period ending in February, Micron said Monday in a statement. That compares with analysts’ average estimate of $7.32 billion. Micron’s shares have gained 20% for 2021.