BUZZ — Citi says chip selloff tied to CXMT DRAM concerns is overdone
* Citi says it expects China's CXMT's planned 4F2 DRAM technology (a denser memory-chip design) to have a "limited" effect on global memory-chip supply * Reported technological progress by CXMT has fueled concerns about increased competition from China's AI players on Tuesday, driving losses in global chip stocks * The