ARM vs MU

Arm Holdings plc and Micron Technology, both Technology

Micron Technology is the larger company at $1.3T against $371B. On trailing earnings MU is the cheaper of the two at a P/E of 13.8 against 271.8, a gap that is only a bargain if the two are growing at similar rates. Over the past year MU returned +510% against +86% for ARM. The RyuScore puts MU ahead, 80 against 58 out of 100.

Arm Holdings plc and Micron Technology compared on valuation, return and the RyuScore
FigureARMMU
Last close$266$1029
Market cap$371B$1.3T
Trailing P/Elower is cheaper for the same earnings, not automatically better271.813.8
1-year return+86%+510%
5-year returnn/a+1319%
RyuScoresector-relative, 1–1058/10080/100

Figures from SEC filings and end-of-day closes. Highlighting marks the higher or lower number, which is not the same as the better investment, a low P/E can be a warning and a high one can be deserved.

Arm Holdings plc

Revenue of $1.3B in Q1 2027, net income $270M.

Micron Technology

Revenue of $54B in Q4 2026, net income $38B. Its largest reported line is CMBU, 33% of the disclosed total.

Open these two in the interactive comparison to add more names, change the period or see the correlation.