ARM +10.3% today — the China exposure math is more interesting than the headline
A lot of the discussion around ARM today centers on its ~18% China revenue exposure (mostly royalty revenue through licensees like Samsung and SK Hynix). Ran the EPS sensitivity instead of just looking at the headline percentage: a 10% cut to that China revenue only moves EPS by about $0.01. The royalty/licensing model has enough operating leverage that revenue shocks don't translate 1:1 into earnings hits.
HPE was up almost identically (+10.0%) the same session, which points more toward broad tech/infra rotation than an ARM-specific catalyst. The AI infrastructure and custom silicon design-win narrative ("physical AI buildout" robotics, edge, data centers) is getting cited as the underlying driver.
Full writeup: https://metricshour.com/briefs/2026-07-10/
Curious if others are seeing the same EPS math or reading the exposure risk differently.