J.P. Morgan: HBM operating margin is catching up to conventional DRAM.
2026E: ~55% HBM vs ~81% conventional DRAM 2028E: ~70% HBM vs ~80% conventional DRAM
Gap narrows from 26 pp to 10 pp. Blended SEC / SK Hynix. Estimates, not reported actuals.
$MU $SKHY $DRAM $EWY