** Micron MU.O shares down 0.9% on Wed ahead of qtrly results after the bell, with investors focused on demand for its high-bandwidth memory (HBM) chips amid recent nervousness about resiliency of AI trade

** MU tumbled 13% on Tues after hitting a record high on Mon. Recent volatility underscores investor jitters about AI-related cos that have fueled Wall Street's rally in recent years

** The memory chipmaker has rallied about 266% YTD, far outpacing the Nasdaq's .IXIC ~11% rise, fueled by optimism over its central role in the AI boom

** MU is expected to report qtrly rev up 285% to $35.85 bln and adj EPS of $20.78 vs $1.91 a yr ago, per LSEG

** MU recently traded at 10x forward earnings estimates, suggesting the stock may not be overvalued following its sharp rally

** MU is most traded co by turnover on Wall Street on Wed, with ~$24 bln worth of shares exchanged, almost triple the second most traded co, Nvidia NVDA.O, with turnover of ~$8.4 bln, per LSEG data

** Investors are also watching MU capex outlook, previously guided above $25 bln for 2026, as the co ramps up production to meet HBM demand