MONOLITHIC POWER SYSTEMS, INC.

MPWR

Quality scores

Data as of Sep 5, 2026

5 / 9

Neutral

5/9 — middling fundamentals (neutral zone).

PassROA > 0 — ROA last year = 14.82 %
PassFCF > 0 — FCF last year = 666.19 mill.
PassFCF > net income (accrual quality) — FCF 666.19 vs. net income 621.48 (mill.)
FailRising ROA — ROA 14.82 % vs. prior year 45.28 %

Test 5: no long-term debt breakdown; approximated with total debt / assets.

Z-Score (original)

57.18

Safe zone

Z''-Score (non-manufacturing)

14.88

Safe zone

Ratio	Value
X1 — Working capital / Total assets	0.43
X2 — Retained earnings / Total assets	0.62
X3 — EBIT / Total assets	0.17
X4 — Market cap / Total liabilities	90.91
X4 — Book equity / Total liabilities	5.33
X5 — Sales / Total assets	0.67