Which has grown faster, AMPH or MNKD?

Over the past five years, MNKD grew revenue faster — AMPH at a 13.71% CAGR versus MNKD at 39.51%.

Is AMPH or MNKD more profitable?

AMPH runs the higher net margin — AMPH at 10.76% versus MNKD at -11.08%.

How have AMPH and MNKD total returns compared?

Over the past 10 years, AMPH delivered 2.47% and MNKD delivered 1.97% annualized total return. Past performance doesn't predict future results.

Amphastar Pharmaceuticals, Inc. (AMPH) vs MannKind Corporation (MNKD)

A side-by-side comparison of Amphastar Pharmaceuticals, Inc. and MannKind Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

AMPH

Amphastar Pharmaceuticals, Inc.

$1.14B

$25.93HealthcareDelayed quote: Oct 6, 2026, 2:30 PM EDT

MNKD

MannKind Corporation

$1.21B

$3.79HealthcareDelayed quote: Oct 6, 2026, 2:25 PM EDT

Total return — AMPH vs MNKD

growth of $100 · dividends reinvested · last 10y

AMPH +32.8% (+2.9%/yr)MNKD +27.7% (+2.5%/yr)AMPH compounded faster over this window

AMPH MNKD

AMPH vs MNKD: by the numbers

•MNKD is the larger company ($1.21B vs $1.14B market cap).
•AMPH is profitable (10.76% net margin) while MNKD runs a net loss (-11.08%).
•MNKD grew revenue faster over the past five years (39.51% vs 13.71% CAGR).

Metrics side by side

Valuation

Metric	AMPH	MNKD
P/E ratio	15.34	N/A
Forward P/E	8.73	N/A
PEG ratio	0.11	N/A
P/S ratio	1.57	3.07
P/B ratio	1.49	N/A
EV / EBITDA	8.96	52.09
FCF yield	13.37%	N/A

Profitability

Metric	AMPH	MNKD
Gross margin	47.68%	75.69%
Operating margin	15.66%	11.12%
Net margin	10.76%	-11.08%
ROE	10.23%	N/A
ROIC	5.93%	1.32%

Growth (annualized)

Metric	AMPH	MNKD
Revenue CAGR (5Y)	13.71%	39.51%
EPS CAGR (5Y)	134.23%	N/A
FCF CAGR (5Y)	23.90%	N/A
Total return CAGR (5Y)	6.13%	-4.18%

Frequently asked

Which has grown faster, AMPH or MNKD?: Over the past five years, MNKD grew revenue faster — AMPH at a 13.71% CAGR versus MNKD at 39.51%.
Is AMPH or MNKD more profitable?: AMPH runs the higher net margin — AMPH at 10.76% versus MNKD at -11.08%.
How have AMPH and MNKD total returns compared?: Over the past 10 years, AMPH delivered 2.47% and MNKD delivered 1.97% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AMPH analysis Full MNKD analysis Interactive comparison tool

Dig into the metrics

Amphastar Pharmaceuticals P/E ratio Amphastar Pharmaceuticals ROE MannKind ROE Amphastar Pharmaceuticals operating margin MannKind operating margin Amphastar Pharmaceuticals revenue growth MannKind revenue growth Amphastar Pharmaceuticals free cash flow MannKind free cash flow

Amphastar Pharmaceuticals & MannKind appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.