Serenity, a prominent AI industry chain analyst, has identified several small- to mid-cap AI concept stocks as potential high-return investments. The stocks listed include ASX, Sumitomo Electric, JBL, VICR, GFS, AAOI, AlChip, TSEM, FN, Furukawa Electric, CLS, NBIS, NOK, AMKR, LITE, and COHR. These companies generally have market capitalizations ranging from $10 billion to $100 billion. Serenity suggests that investing in these stocks could yield better returns than passive index allocations or investing in already high-priced stocks like ARM and MRVL. Serenity disclosed personal holdings in NBIS, TSEM, and AAOI.