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Amphastar Pharmaceuticals, Inc. AMPH

Nasdaq · stock · Pharmaceutical Preparations · website · IPO 2014-06-25 · LEI

Amphastar Pharmaceuticals, Inc. statistics & valuation

Market cap$960.3M
P / E9.8×
P / S1.3×
P / B1.2×
P / FCF7.9×
Net margin13.6%
Return on equity12.4%
FCF margin16.8%
Net debt$449.5M
Net debt / EBITDA2.6×
Enterprise value USD$1.4B
EV / EBITDA8.2×
Earnings yield EBIT/EV10%
Return on capital9.5%
Graham number +36.8%$27.34

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 ($27.34); a green figure means the price is below it.

Profitability & efficiency

Net margin (%)
3.80% 1.50% -1.90% 15.20% 0.40% 14.20% 18.30% 21.30% 21.80% 13.60% 2016201720182019202020212022202320242025
Gross margin (%)
40.80% 37.70% 36.30% 40.90% 41.00% 45.60% 49.90% 54.50% 51.10% 49.50% 2016201720182019202020212022202320242025
Operating margin (%)
6.00% -0.50% -2.90% 0.00% 3.10% 16.00% 21.50% 30.60% 28.10% 19.50% 2016201720182019202020212022202320242025
Return on equity (%)
3.00% 1.10% -1.60% 11.40% 0.30% 13.90% 17.30% 21.50% 21.80% 12.40% 2016201720182019202020212022202320242025
Shares outstanding
47.5M 48.4M 46.6M 49.9M 49.1M 49.8M 52.4M 53.0M 52.1M 48.2M 2016201720182019202020212022202320242025
Net debt ($)
-$36.3M -$19.9M -$37.2M -$27.4M -$46.7M -$48.2M -$79.5M $458.9M $461.9M $449.5M 2016201720182019202020212022202320242025
Share buybacks ($)
2016201720182019202020212022202320242025
Return on assets (%)
2.30% 0.80% -1.10% 8.30% 0.20% 9.20% 12.30% 9.10% 10.10% 6.00% 2016201720182019202020212022202320242025
Free cash flow margin (%)
6.70% 1.70% -2.90% 0.10% 6.70% 16.10% 13.10% 22.60% 23.50% 16.80% 2016201720182019202020212022202320242025
Debt / equity (×)
0.11× 0.14× 0.13× 0.11× 0.10× 0.18× 0.14× 0.94× 0.84× 0.79× 2016201720182019202020212022202320242025
EPS ($)
$0.21 $0.08 -$0.12 $0.98 $0.03 $1.25 $1.74 $2.60 $3.06 $2.03 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

Amphastar Pharmaceuticals, Inc. trades at about 9.8× earnings — below its 10-year norm (10-year range 11.4×–606×, median 19.3×).

9.8× 606×

Shaded band = 10-year range (11.4×–606×); dot = today's 9.8×.

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 margin49.5%51.1%54.5%49.9%45.6%41.0%40.9%36.3%37.7%40.8%
Operating margin19.5%28.1%30.6%21.5%16.0%3.1%-0.0%-2.9%-0.5%6.0%
Net margin13.6%21.8%21.3%18.3%14.2%0.4%15.2%-1.9%1.5%3.8%
FCF margin16.8%23.5%22.6%13.1%16.1%6.7%0.1%-2.9%1.7%6.7%
Return on assets6.0%10.1%9.1%12.3%9.2%0.2%8.3%-1.1%0.8%2.3%
Return on equity12.4%21.8%21.5%17.3%13.9%0.3%11.4%-1.6%1.1%3.0%
Debt / equity0.79×0.84×0.94×0.14×0.18×0.10×0.11×0.13×0.14×0.11×
Current ratio4.023.072.173.993.062.492.842.062.793.04

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