Stocktoria

DIODES INC /DEL/ DIOD

Nasdaq · stock · Semiconductors & Related Devices · website · IPO 1980-03-17

DIODES INC /DEL/ statistics & valuation

Market cap$4.8B
P / E72.3×
P / S3.2×
P / B2.5×
P / FCF34.9×
Net margin4.5%
Return on equity3.4%
FCF margin9.3%
Net cash$341.5M
Net debt / EBITDA-2.2×
Enterprise value USD$4.4B
EV / EBITDA28.3×
Earnings yield EBIT/EV0.8%
Return on capital1.7%
Graham number -65.8%$36.66

Market cap as of 2026-06-29. Multiples are price-derived and refreshed daily; everything else from the latest financial reports. The Graham number is Benjamin Graham's rough maximum fair value ($36.66); a green figure means the price is below it.

Profitability & efficiency

Net margin (%)
1.70% -0.20% 8.60% 12.30% 8.00% 12.70% 16.60% 13.70% 3.40% 4.50% 2016201720182019202020212022202320242025
Gross margin (%)
30.50% 32.40% 35.90% 37.30% 35.10% 37.10% 41.30% 39.60% 33.20% 31.20% 2016201720182019202020212022202320242025
Operating margin (%)
4.00% 7.20% 12.70% 16.10% 10.90% 15.30% 20.40% 15.10% 3.80% 2.40% 2016201720182019202020212022202320242025
Return on equity (%)
1.90% -0.20% 10.60% 13.30% 9.70% 17.60% 20.90% 12.60% 2.40% 3.40% 2016201720182019202020212022202320242025
Shares outstanding
49.8M 49.1M 50.9M 51.9M 52.1M 45.8M 46.0M 46.3M 46.4M 46.4M 2016201720182019202020212022202320242025
Net debt ($)
$182.0M $66.3M -$25.9M -$159.7M $44.2M -$78.6M -$186.4M -$294.1M -$288.0M -$341.5M 2016201720182019202020212022202320242025
Share buybacks ($)
2016201720182019202020212022202320242025
Return on assets (%)
1.00% -0.10% 6.80% 9.30% 5.00% 10.40% 14.50% 9.60% 1.80% 2.70% 2016201720182019202020212022202320242025
Free cash flow margin (%)
7.00% 6.40% 8.10% 10.50% 9.10% 10.90% 9.00% 7.80% 3.50% 9.30% 2016201720182019202020212022202320242025
Debt / equity (×)
0.52× 0.31× 0.22× 0.09× 0.31× 0.22× 0.09× 0.01× 0.01× 0.01× 2016201720182019202020212022202320242025
EPS ($)
$0.32 -$0.04 $2.04 $2.96 $1.88 $5.00 $7.20 $4.91 $0.95 $1.43 2016201720182019202020212022202320242025

Margins and returns computed from annual filings. Falling shares outstanding = buybacks; rising = dilution. Net debt = debt − cash (negative = net cash).

P / E vs its own history

DIODES INC /DEL/ trades at about 74.9× earnings — above its 10-year norm (10-year range 12.4×–77.8×, median 37.6×).

12.4× 77.8×

Shaded band = 10-year range (12.4×–77.8×); dot = today's 74.9×.

Historical P/E = month-end price near each fiscal year-end ÷ that year's EPS. A read on whether the stock is cheap or dear relative to how it has typically been valued — not a forecast.

Key ratios (by fiscal year)

RatioFY2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY2017FY2016
Gross margin31.2%33.2%39.6%41.3%37.1%35.1%37.3%35.9%32.4%30.5%
Operating margin2.4%3.8%15.1%20.4%15.3%10.9%16.1%12.7%7.2%4.0%
Net margin4.5%3.4%13.7%16.6%12.7%8.0%12.3%8.6%-0.2%1.7%
FCF margin9.3%3.5%7.8%9.0%10.9%9.1%10.5%8.1%6.4%7.0%
Return on assets2.7%1.8%9.6%14.5%10.4%5.0%9.3%6.8%-0.1%1.0%
Return on equity3.4%2.4%12.6%20.9%17.6%9.7%13.3%10.6%-0.2%1.9%
Debt / equity0.01×0.01×0.01×0.09×0.22×0.31×0.09×0.22×0.31×0.52×
Current ratio3.323.263.022.692.522.012.842.892.683.95

Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.