Sandisk (spun off from Western Digital) is a NAND flash memory specialist that has posted an extraordinary 2,438.3% one-year return, driven by surging AI server and data-center storage demand. Both growth (A+) and profitability (A) sit at the top.

A move this extreme is large enough to visually overwhelm other names on a marketbrief comparison chart, so log-scale viewing is recommended when comparing it against peers. Interestingly, valuation (B-) hasn't reached extreme levels despite the rally, meaning earnings have grown roughly as fast as the price — but the usual memory-cycle volatility risk still applies.