AMPH vs GELS vs GRFS Stock Comparison

Amphastar Pharmaceuticals, Gelteq and Grifols Prices as of Oct 26, 2026 Peers: Industry group
GELS Gelteq Ltd
$0.45 -18.2% 1M -63.7% 1Y
Market cap
$4.08M
P/E
–
Revenue (TTM)
—
Div. yield
–
Contract Manufacturing Healthcare
GRFS Grifols SA
$7.92 +7.8% 1M -16.3% 1Y
Market cap
$5.45B
P/E
11.9x
Revenue (TTM)
—
Div. yield
–
Biotechnology Healthcare
3 wins

Head to Head

7 decided of 12

Amphastar Pharmaceuticals leads on 4 of the 12 questions below (Amphastar Pharmaceuticals 4, Grifols 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMPHGELSGRFSLeader
Larger companyMarket capitalisation $1.12B $4.08M $5.45B GRFS
Cheaper on earningsLower P/E, profitable companies only 14.2x — 11.9x GRFS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 8.2x — 8.4x AMPH
Faster revenue growthRevenue growth, trailing twelve months +1.0% — — –
More profitableNet margin, trailing twelve months 10.8% — — –
Better return on capitalReturn on invested capital 6.4% — — –
Less leveragedLower net debt / EBITDA 1.8x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +3.9% -63.7% -16.3% AMPH
Better 5-year returnAnnualised price return, 5 years +6.8%/yr — -9.9%/yr AMPH
Less volatileAnnualised volatility, 1 year 54.3% 159.8% 32.4% GRFS
Higher overall scoreMean of the five percentile scores vs peers 73/100 — 57/100 AMPH

Percentile Scorecard

AMPHGELSGRFS

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAMPHGELSGRFS
Valuation 99 #8 of 626 – 99 #6 of 626
Growth 43 #347 of 604 – –
Profitability 87 #72 of 555 – –
Financial Health 37 #412 of 658 67 #5 of 13 14 #566 of 658
Shareholder Returns 99 #4 of 368 – 56 #161 of 368
Overall 73 – 57
  • AMPH ranked among 673 companies in Pharmaceuticals and Biotechnology
  • GELS ranked among 13 companies in Pharma Services
  • GRFS ranked among 673 companies in Pharmaceuticals and Biotechnology

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAMPHGELSGRFSSPY
1 month -2.5%-18.2%+7.8% -0.8%
3 months +32.8%-31.8%+2.2% +3.5%
6 months +17.6%-35.3%-2.6% +7.0%
Year to date -4.9%-43.8%-15.3% +12.2%
1 year +3.9%-63.7%-16.3% +13.0%
3 years -42.9%—+1.0% +86.3%
3 years, per year -17.1%—+0.3% +23.1%
5 years +38.7%—-40.5% +68.6%
5 years, per year +6.8%—-9.9% +11.0%
10 years +40.1%—-46.6% +258.0%
10 years, per year +3.4%—-6.1% +13.6%

Risk

MeasureAMPHGELSGRFSSPY
Volatility, 1Y 54.3%159.8%32.4% 12.7%
Downside volatility, 1Y 66.4%122.0%34.1% 12.7%
Beta vs S&P 500, 1Y 0.582.060.95 1.00
Return / volatility, 1Y 0.07-0.40-0.50 1.02
Max drawdown, 5Y -74.0%-91.9%-58.9% -25.4%
From 52-week high -13.4%-70.6%-18.5% -1.8%
52-week high $29.40$1.53$9.72 $779.14
52-week low $16.87$0.39$7.02 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAMPHGELSGRFS
P/E now vs peer median 14.2xmedian 17.1x —median 36.5x 11.9xmedian 17.1x
P/S now vs peer median 1.5xmedian 8.8x —median 2.7x 0.6xmedian 8.8x
EV/EBITDA now vs peer median 8.0xmedian 17.1x —median 37.7x —median 17.1x
P/FCF now vs peer median 7.1xmedian 18.0x -6.8xmedian 20.7x 7.6xmedian 18.0x
P/B now vs peer median 1.4xmedian 2.1x 0.5xmedian 2.9x 0.6xmedian 2.1x
PEG now vs peer median -5.53median 0.31 —median 2.04 —median 0.31

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAMPHGELSGRFS
Revenue $730.02M – –
Gross profit $348.11M – –
Operating income $114.29M – –
Net income $78.55M – –
Free cash flow $152.89M – –
R&D $94.57M – –
EPS (diluted) $1.78 – –
Cash & equivalents $223.61M $6.26K $969.15M
Total debt $612.05M $8.91M $44.00B
Shares (diluted) 44.23M 9.27M 681.57M
Enterprise value -$24.90M $1.94M $1.80B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAMPHGELSGRFS
P/E 14.2x – 11.9x
P/FCF 7.1x -6.8x 7.6x
P/Operating cash flow 5.9x – –
P/S 1.5x – 0.6x
P/B 1.4x 0.5x 0.6x
P/Tangible book 1.5x -1.4x 0.9x
EV/EBITDA 8.0x – –
EV/EBIT 12.3x – –
EV/Revenue 1.9x – –
EV/FCF 9.2x – –
EV/Operating cash flow 7.6x – –
PEG (3Y EPS CAGR) -5.53 – –

Growth

14 metrics
MetricAMPHGELSGRFS
Revenue growth (1Y) 1.0% – –
Revenue CAGR (3Y) 10.5% – –
Gross profit growth (1Y) -3.4% – –
Gross profit CAGR (3Y) 8.0% – –
Operating income growth (1Y) -37.1% – –
Operating income CAGR (3Y) -4.5% – –
Net income growth (1Y) -41.7% – –
Net income CAGR (3Y) -8.3% – –
EPS growth (1Y) -36.5% – –
EPS CAGR (3Y) -2.6% – –
Operating cash flow growth (1Y) 15.6% – –
Operating cash flow CAGR (3Y) 12.1% – –
Free cash flow growth (1Y) 36.3% – –
Free cash flow CAGR (3Y) 15.0% – –

Profitability

14 metrics
MetricAMPHGELSGRFS
Gross margin 47.7% – –
EBITDA margin 23.9% – –
Operating margin 15.7% – –
Pretax margin 14.0% – –
Net margin 10.8% – –
FCF margin 20.9% – –
Operating cash flow margin 25.3% – –
Return on equity 10.2% – –
Return on assets 4.6% – –
Return on invested capital 6.4% – –
Return on capital employed 8.0% – –
Asset turnover 0.4x – –
Cash conversion (OCF / net income) 2.4x – –
Stock comp / revenue 4.0% – –

Financial Health

11 metrics
MetricAMPHGELSGRFS
Debt / assets 35.1% 0.1% 48.9%
Debt / equity 0.8x 0.0x 1.3x
Net debt / EBITDA 1.8x – –
Debt / FCF 4.0x – –
Liabilities / assets 55.9% 29.4% 61.4%
Equity / assets 44.1% 70.6% 38.6%
Interest coverage 4.4x – –
Current ratio 2.4x 0.1x 2.5x
Quick ratio 1.7x 0.1x 0.8x
Cash ratio 1.1x 0.0x 0.4x
Altman Z-score 2.12 – –

Shareholder Returns

7 metrics
MetricAMPHGELSGRFS
Dividend yield – – 1.4%
Net buyback yield 9.0% – –
Shareholder yield 9.0% – 1.4%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAMPHGELSGRFS
Forward P/E 8.2xFY2026 – 8.4xFY2026
EPS, next fiscal year $3.09FY2026 – $0.94FY2026
EPS growth, next FY -4.9%FY2026 – +10.6%FY2026
EPS growth, the year after +9.4% – +26.6%
Revenue, next fiscal year $790.23MFY2026 – $8.88BFY2026
Revenue growth, next FY +9.8%FY2026 – +0.0%FY2026
Revenue growth, the year after -5.4% – +10.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAMPHGELSGRFS
Held by institutions 64.8% – 21.0%
Institutions holding 209 – 166
Change in shares held, QoQ -11.7% – -0.5%
Institutions buying 96 – 73
Institutions selling 74 – 65
Buyers to sellers 1.30 – 1.12

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AMPHGELSGRFS
AMPH 1.00 0.00 0.18
GELS 0.00 1.00 0.11
GRFS 0.18 0.11 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, AMPH, GELS and GRFS?

Grifols (GRFS) is the largest by market capitalisation: Amphastar Pharmaceuticals (AMPH) $1.12B, Gelteq (GELS) $4.08M, Grifols (GRFS) $5.45B.

Which stock is cheaper, AMPH, GELS and GRFS?

Grifols (GRFS) trades on the lowest price-to-earnings ratio (Amphastar Pharmaceuticals (AMPH) 14.2x, Grifols (GRFS) 11.9x). On next year's consensus earnings, Amphastar Pharmaceuticals (AMPH) is cheapest (Amphastar Pharmaceuticals (AMPH) 8.2x, Grifols (GRFS) 8.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which stock has performed better?

Over the past year Amphastar Pharmaceuticals (AMPH) returned the most: Amphastar Pharmaceuticals (AMPH) +3.9%, Gelteq (GELS) -63.7%, Grifols (GRFS) -16.3%. Over five years, Amphastar Pharmaceuticals (AMPH) compounded fastest (Amphastar Pharmaceuticals (AMPH) +6.8%/yr, Grifols (GRFS) -9.9%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Grifols (GRFS) has been the steadiest (Amphastar Pharmaceuticals (AMPH) 54.3%, Gelteq (GELS) 159.8%, Grifols (GRFS) 32.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AMPH, GELS and GRFS?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Amphastar Pharmaceuticals (AMPH) leads on 4. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.