AMPH vs INIS vs NTRB Stock Comparison

Amphastar Pharmaceuticals, Radnostix and NutriBand Prices as of Oct 26, 2026 Peers: Industry group
INIS Radnostix Inc
$0.05 -16.7% 1M 0.0% 1Y
Market cap
$20.11M
P/E
–
Revenue (TTM)
$11.23M
Div. yield
–
Generic Drugs Healthcare
1 win
NTRB NutriBand Inc.
$5.97 -25.4% 1M -16.5% 1Y
Market cap
$73.42M
P/E
–
Revenue (TTM)
$1.62M
Div. yield
–
Generic Drugs Healthcare
1 win

Head to Head

9 decided of 12

Amphastar Pharmaceuticals leads on 7 of the 12 questions below (Amphastar Pharmaceuticals 7, NutriBand 1, Radnostix 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMPHINISNTRBLeader
Larger companyMarket capitalisation $1.12B $20.11M $73.42M AMPH
Cheaper on earningsLower P/E, profitable companies only 14.2x -7.0x -10.5x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 8.2x — 3.6x NTRB
Faster revenue growthRevenue growth, trailing twelve months +1.0% -23.7% -37.3% AMPH
More profitableNet margin, trailing twelve months 10.8% -25.5% -430.4% AMPH
Better return on capitalReturn on invested capital 6.4% — — –
Less leveragedLower net debt / EBITDA 1.8x -0.5x 0.5x INIS
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +3.9% 0.0% -16.5% AMPH
Better 5-year returnAnnualised price return, 5 years +6.8%/yr -13.0%/yr +3.7%/yr AMPH
Less volatileAnnualised volatility, 1 year 54.3% 169.2% 80.1% AMPH
Higher overall scoreMean of the five percentile scores vs peers 73/100 51/100 50/100 AMPH

Percentile Scorecard

AMPHINISNTRB

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

AxisAMPHINISNTRB
Valuation 99 #8 of 626 83 #110 of 626 53 #295 of 626
Growth 43 #347 of 604 2 #591 of 604 43 #346 of 604
Profitability 87 #72 of 555 72 #159 of 555 35 #360 of 555
Financial Health 37 #412 of 658 16 #553 of 658 68 #210 of 658
Shareholder Returns 99 #4 of 368 84 #61 of 368 –
Overall 73 51 50
  • AMPH ranked among 673 companies in Pharmaceuticals and Biotechnology
  • INIS ranked among 673 companies in Pharmaceuticals and Biotechnology
  • NTRB 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

PeriodAMPHINISNTRBSPY
1 month -2.5%-16.7%-25.4% -0.8%
3 months +32.8%-28.6%+100.3% +3.5%
6 months +17.6%-37.5%+53.5% +7.0%
Year to date -4.9%-16.7%+31.5% +12.2%
1 year +3.9%0.0%-16.5% +13.0%
3 years -42.9%0.0%+182.9% +86.3%
3 years, per year -17.1%0.0%+41.5% +23.1%
5 years +38.7%-50.0%+20.1% +68.6%
5 years, per year +6.8%-13.0%+3.7% +11.0%
10 years +40.1%-37.5%— +258.0%
10 years, per year +3.4%-4.6%— +13.6%

Risk

MeasureAMPHINISNTRBSPY
Volatility, 1Y 54.3%169.2%80.1% 12.7%
Downside volatility, 1Y 66.4%264.0%75.6% 12.7%
Beta vs S&P 500, 1Y 0.582.051.03 1.00
Return / volatility, 1Y 0.070.00-0.21 1.02
Max drawdown, 5Y -74.0%-70.0%-77.7% -25.4%
From 52-week high -13.4%-54.5%-33.6% -1.8%
52-week high $29.40$0.11$8.99 $779.14
52-week low $16.87$0.04$2.81 $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.

MultipleAMPHINISNTRB
P/E now vs peer median 14.2xmedian 17.1x -9.2xmedian 17.1x -10.4xmedian 17.1x
P/S now vs peer median 1.5xmedian 8.8x 2.4xmedian 8.8x 44.9xmedian 8.8x
EV/EBITDA now vs peer median 8.0xmedian 17.1x -11.0xmedian 17.1x -10.0xmedian 17.1x
P/FCF now vs peer median 7.1xmedian 18.0x -28.6xmedian 18.0x -20.0xmedian 18.0x
P/B now vs peer median 1.4xmedian 2.1x 14.0xmedian 2.1x 13.6xmedian 2.1x
PEG now vs peer median -5.53median 0.31 0.25median 0.31 -12.69median 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 monthsAMPHINISNTRB
Revenue $730.02M $11.23M $1.62M
Gross profit $348.11M $6.04M $536.12K
Operating income $114.29M -$2.90M -$7.05M
Net income $78.55M -$2.86M -$6.96M
Free cash flow $152.89M -$925.24K -$3.63M
R&D $94.57M $490.38K $1.21M
EPS (diluted) $1.78 $-0.01 $-0.57
Cash & equivalents $223.61M $1.20M $3.42M
Total debt $612.05M $8.26M $647.66K
Shares (diluted) 44.23M 529.12M 12.16M
Enterprise value -$24.25M $14.22M $56.11M

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
MetricAMPHINISNTRB
P/E 14.2x -9.2x -10.4x
P/FCF 7.1x -28.6x -20.0x
P/Operating cash flow 5.9x -70.3x -20.0x
P/S 1.5x 2.4x 44.9x
P/B 1.4x 14.0x 13.6x
P/Tangible book 1.5x -21.4x 14.1x
EV/EBITDA 8.0x -11.0x -10.0x
EV/EBIT 12.3x -9.5x -9.8x
EV/Revenue 1.9x 2.5x 42.8x
EV/FCF 9.2x -29.8x -19.1x
EV/Operating cash flow 7.6x -73.3x -19.1x
PEG (3Y EPS CAGR) -5.53 0.25 -12.69

Growth

14 metrics
MetricAMPHINISNTRB
Revenue growth (1Y) 1.0% -23.7% -37.3%
Revenue CAGR (3Y) 10.5% -2.6% -10.8%
Gross profit growth (1Y) -3.4% -32.4% -39.5%
Gross profit CAGR (3Y) 8.0% -4.0% -16.5%
Operating income growth (1Y) -37.1% -1,245% 32.3%
Operating income CAGR (3Y) -4.5% -50.5% -15.3%
Net income growth (1Y) -41.7% -2,437% 32.2%
Net income CAGR (3Y) -8.3% -38.0% -14.8%
EPS growth (1Y) -36.5% -2,429% 80.0%
EPS CAGR (3Y) -2.6% -37.0% 0.8%
Operating cash flow growth (1Y) 15.6% -157.0% 25.9%
Operating cash flow CAGR (3Y) 12.1% -41.4% -5.7%
Free cash flow growth (1Y) 36.3% -2,469% 26.6%
Free cash flow CAGR (3Y) 15.0% -69.5% -5.5%

Profitability

14 metrics
MetricAMPHINISNTRB
Gross margin 47.7% 53.8% 33.1%
EBITDA margin 23.9% -22.3% -426.5%
Operating margin 15.7% -25.8% -435.6%
Pretax margin 14.0% -28.3% -430.4%
Net margin 10.8% -25.5% -430.4%
FCF margin 20.9% -8.2% -224.5%
Operating cash flow margin 25.3% -3.4% -224.5%
Return on equity 10.2% -140.0% -123.0%
Return on assets 4.6% -18.8% -105.6%
Return on invested capital 6.4% – –
Return on capital employed 8.0% -22.8% -123.9%
Asset turnover 0.4x 0.7x 0.2x
Cash conversion (OCF / net income) 2.4x 0.1x 0.5x
Stock comp / revenue 4.0% 3.7% 204.1%

Financial Health

11 metrics
MetricAMPHINISNTRB
Debt / assets 35.1% 14.0% 2.4%
Debt / equity 0.8x 1.2x 0.0x
Net debt / EBITDA 1.8x -0.5x 0.5x
Debt / FCF 4.0x -2.5x 0.0x
Liabilities / assets 55.9% 88.6% 15.3%
Equity / assets 44.1% 11.4% 84.7%
Interest coverage 4.4x -8.5x -339.3x
Current ratio 2.4x 0.8x 4.2x
Quick ratio 1.7x 0.6x 3.8x
Cash ratio 1.1x 0.3x 3.8x
Altman Z-score 2.12 -9.85 31.41

Shareholder Returns

7 metrics
MetricAMPHINISNTRB
Dividend yield – – –
Net buyback yield 9.0% -0.1% –
Shareholder yield 9.0% -0.1% –
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.

ConsensusAMPHINISNTRB
Forward P/E 8.2xFY2026 – 3.6xFY2026
EPS, next fiscal year $3.09FY2026 – $1.65FY2026
EPS growth, next FY -4.9%FY2026 – –
EPS growth, the year after +9.4% – +112.1%
Revenue, next fiscal year $790.23MFY2026 – $90.32MFY2026
Revenue growth, next FY +9.8%FY2026 – +4,334.5%FY2026
Revenue growth, the year after -5.4% – +109.8%

Institutional Ownership

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

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.

AMPHINISNTRB
AMPH 1.00 0.04 0.04
INIS 0.04 1.00 0.04
NTRB 0.04 0.04 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, AMPH, INIS and NTRB?

Amphastar Pharmaceuticals (AMPH) is the largest by market capitalisation: Amphastar Pharmaceuticals (AMPH) $1.12B, Radnostix (INIS) $20.11M, NutriBand (NTRB) $73.42M.

Which company is growing faster?

Amphastar Pharmaceuticals (AMPH) grew revenue fastest over the trailing twelve months: Amphastar Pharmaceuticals (AMPH) +1.0%, Radnostix (INIS) -23.7%, NutriBand (NTRB) -37.3%.

Which company is more profitable?

Amphastar Pharmaceuticals (AMPH) has the highest net margin (Amphastar Pharmaceuticals (AMPH) 10.8%, Radnostix (INIS) -25.5%, NutriBand (NTRB) -430.4%).

Which stock has performed better?

Over the past year Amphastar Pharmaceuticals (AMPH) returned the most: Amphastar Pharmaceuticals (AMPH) +3.9%, Radnostix (INIS) 0.0%, NutriBand (NTRB) -16.5%. Over five years, Amphastar Pharmaceuticals (AMPH) compounded fastest (Amphastar Pharmaceuticals (AMPH) +6.8%/yr, Radnostix (INIS) -13.0%/yr, NutriBand (NTRB) +3.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amphastar Pharmaceuticals (AMPH) has been the steadiest (Amphastar Pharmaceuticals (AMPH) 54.3%, Radnostix (INIS) 169.2%, NutriBand (NTRB) 80.1%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AMPH, INIS and NTRB?

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 7. 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.