AMPH — Amphastar Pharmaceuticals Inc. stock price and chart

AMPH

$25.94-0.77%

as of close, Oct 20, 2026

☾ AH $25.94 -0.77%

Amphastar Pharmaceuticals Inc.Stock · HealthcareRussell 2000 · 0.02% of IWMRussell 3000 · 0.001% of IWVUS Stock Market · 0.0009% of VTI

PeersMRNALLYMDTUNHJNJTMO

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20162019202120242026

15.020.025.030.035.040.045.050.055.060.005.0M$25.94

2026-10-20

Price$25.94

MA20$21.64

MA50$23.69

Vol1.4M

What would $1,000 invested in AMPH be worth today? →

AMPH returns: By year · By month · By week · Trailing

Key stats#

Price data

Price: $25.94
YTD price return: -3.14%
YTD total return: -3.14%
Next earnings: Nov 5, 2026
Market cap: 1.1B2016-12 847.8M2026-10 1.1B+30.2% over the window
Enterprise value: 1.5B
Shares outstanding: 42.5M2016-06 45.1M2026-06 42.5M-5.7% over the window
52W low: $16.65
52W high: $29.52
From 52W high: -12.13%
From 52W low: +55.80%
52W range: 72%

Volume

Rel volume: 0.73×
30D volume: 496K
30D $ vol: 12.5M

Fundamentals

Sales (ttm): 730M2016-06 268.2M2026-06 730M+172.2% over the window
Sales/share: $17.162016-06 $5.942026-06 $17.16+188.7% over the window
EPS (ttm): $1.692016-06 $0.292026-06 $1.69+484.0% over the window
FCF (ttm): 152.9M2016-06 11.5M2026-06 152.9M+1230.0% over the window
FCF/share: $3.592016-06 $0.252026-06 $3.59+1310.7% over the window
Book value/share: $18.062016-06 $6.812026-06 $18.06+165.0% over the window
Net margin: 10.76%2016-06 5.2%2026-06 10.8%+107.5% over the window
ROE: 10.23%2016-06 4.5%2026-06 10.2%+126.0% over the window
ROA: 4.50%2016-06 3.4%2026-06 4.5%+32.3% over the window
Debt / equity: 0.79×2016-06 0.102026-06 0.79+668.7% over the window
Current ratio: 2.402016-06 2.762026-06 2.40-13.2% over the window

Growth (CAGR, ttm) · 10Y

Sales: +1.02%2025-06-30 → 2026-06-30722.7M → 730M (+1.0% total)+10.51%2023-06-30 → 2026-06-30540.9M → 730M (+35.0% total)+13.71%2021-06-30 → 2026-06-30384M → 730M (+90.1% total)+10.53%2016-06-30 → 2026-06-30268.2M → 730M (+172.2% total)
Net income: -41.71%2025-06-30 → 2026-06-30134.7M → 78.5M (-41.7% total)-8.32%2023-06-30 → 2026-06-30101.9M → 78.5M (-23.0% total)+49.69%2021-06-30 → 2026-06-3010.5M → 78.5M (+651.4% total)+18.90%2016-06-30 → 2026-06-3013.9M → 78.5M (+464.7% total)
FCF: +36.31%2025-06-30 → 2026-06-30112.2M → 152.9M (+36.3% total)+15.03%2023-06-30 → 2026-06-30100.4M → 152.9M (+52.2% total)+23.90%2021-06-30 → 2026-06-3052.4M → 152.9M (+192.0% total)+29.54%2016-06-30 → 2026-06-3011.5M → 152.9M (+1230.0% total)
Shares: -8.52%2025-06-30 → 2026-06-3046.5M → 42.5M (-8.5% total)-4.51%2023-06-30 → 2026-06-3048.9M → 42.5M (-12.9% total)-2.40%2021-06-30 → 2026-06-3048M → 42.5M (-11.4% total)-0.59%2016-06-30 → 2026-06-3045.1M → 42.5M (-5.7% total)

Per-share growth (CAGR, ttm) · 10Y

EPS: -36.79%2025-06-30 → 2026-06-30$2.68 → $1.69 (-36.8% total)-4.52%2023-06-30 → 2026-06-30$1.95 → $1.69 (-13.0% total)+51.75%2021-06-30 → 2026-06-30$0.21 → $1.69 (+704.5% total)+19.30%2016-06-30 → 2026-06-30$0.29 → $1.69 (+484.0% total)
Sales/share: +10.42%2025-06-30 → 2026-06-30$15.54 → $17.16 (+10.4% total)+15.73%2023-06-30 → 2026-06-30$11.07 → $17.16 (+55.0% total)+16.51%2021-06-30 → 2026-06-30$8.00 → $17.16 (+114.6% total)+11.19%2016-06-30 → 2026-06-30$5.94 → $17.16 (+188.7% total)
FCF/share: +49.00%2025-06-30 → 2026-06-30$2.41 → $3.59 (+49.0% total)+20.46%2023-06-30 → 2026-06-30$2.06 → $3.59 (+74.8% total)+26.95%2021-06-30 → 2026-06-30$1.09 → $3.59 (+229.7% total)+30.30%2016-06-30 → 2026-06-30$0.25 → $3.59 (+1310.7% total)
Book value/share: +10.85%2025-06-30 → 2026-06-30$16.29 → $18.06 (+10.8% total)+14.40%2023-06-30 → 2026-06-30$12.06 → $18.06 (+49.7% total)+15.50%2021-06-30 → 2026-06-30$8.79 → $18.06 (+105.5% total)+10.24%2016-06-30 → 2026-06-30$6.81 → $18.06 (+165.0% total)
Price: +9.32%2025-10-20 → 2026-10-20$23.73 → $25.94 (+9.3% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.-16.46%2023-10-20 → 2026-10-20$44.49 → $25.94 (-41.7% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+5.93%2021-10-20 → 2026-10-20$19.45 → $25.94 (+33.4% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+3.66%2016-10-19 → 2026-10-20$18.10 → $25.94 (+43.3% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.
Total return: +9.32%2025-10-20 → 2026-10-20$23.73 → $25.94 (+9.3% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.-16.46%2023-10-20 → 2026-10-20$44.49 → $25.94 (-41.7% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+5.93%2021-10-20 → 2026-10-20$19.45 → $25.94 (+33.4% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+3.66%2016-10-19 → 2026-10-20$18.10 → $25.94 (+43.3% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.

Fundamentals end at the last reported quarter; price and total return end at the latest close.

Valuation

P/E (ttm)Price ÷ TTM diluted EPS. Net income carries everything below the operating line, including one-off gains. Negative when the trailing year lost money.: 15.3×2016-12 40.742026-10 14.05-65.5% over the window
P/OI (ttm)Price ÷ TTM operating income. Excludes the below-the-line items that make P/E jump — mark-to-market gains, settlements, tax true-ups.: 9.7×2016-12 24.522026-10 9.66-60.6% over the window
Fwd P/E: 8.1×
P/S (ttm)Market cap ÷ TTM revenue.: 1.5×2016-12 3.162026-10 1.51-52.1% over the window
P/B (mrq)Market cap ÷ stockholders' equity at the most recent quarter end.: 1.4×2016-12 2.582026-10 1.44-44.3% over the window
P/FCF (ttm)Market cap ÷ TTM free cash flow (operating cash flow − capex).: 7.2×2016-12 130.732026-10 7.22-94.5% over the window
EV/EBITDA (fy): 8.8×
EV/Sales (ttm): 2.1×
FCF yield (ttm)TTM free cash flow ÷ market cap — the inverse of P/FCF.: 13.86%2016-09 0.8%2026-06 17.8%+2228.4% over the window
Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 42.5M ÷ 46.5M. Point-in-time share counts from the company's own SEC filings (the same count at both ends), published only when the cash flow statement shows repurchases inside that window. A falling price can't inflate it; negative means net dilution.: 8.52%
Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (8.52%) + dividends paid over that year ($0) ÷ market_cap_at(2025-06-30) ($1.1B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.: 8.52%
Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($100.1M) ÷ today's market cap ($1.1B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.: 9.07%2016-09 1.6%2026-06 11.7%+650.7% over the window
Shareholder yield (cash, ttm)(TTM buybacks net of issuance $100.1M + TTM dividends $0) ÷ today's market cap ($1.1B). Same caveat as the cash buyback yield.: 9.07%2016-09 1.6%2026-06 11.7%+650.7% over the window

Vs own 10Y history

P/E: 27th
P/OI: 26th
P/S: 8th
P/B: 8th
P/FCF: 6th

Bar = where today’s multiple sits in AMPH’s own 10-year range:near a decade-low (cheap)→near a decade-high (rich).

Performance · price return · as of 2026-10-20#

-0.77%

-0.42%

+9.82%

+32.14%

YTD

-3.14%

+9.31%

+33.37%

Financial statements

Open full AMPH financials →

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Ticker	Name	1M	1D
LLY	Eli Lilly and Company	+11.34%	+3.49%
JNJ	Johnson & Johnson	-3.94%	+2.19%
ABBV	AbbVie Inc.	+9.52%	+2.26%
UNH	UnitedHealth Group Incorporated Common Stock (DE)	+11.24%	+3.04%
MRK	Merck & Co. Inc.	+0.97%	+3.25%
NVS	Novartis AG	+9.45%	+2.29%
TMO	Thermo Fisher Scientific Inc.	+5.51%	+1.18%
AMGN	Amgen Inc.	+13.82%	+3.29%

AMPH — Amphastar Pharmaceuticals Inc. price, chart and key statistics