AIFF vs NEOG vs BFLY Stock Comparison

Firefly Neuroscience, Neogen and Butterfly Network Prices as of Oct 26, 2026 Peers: Industry group
NEOG Neogen Corp
$12.21 -11.3% 1M +97.3% 1Y
Market cap
$2.72B
P/E
–
Revenue (TTM)
$883.99M
Div. yield
–
Diagnostic Equipment Healthcare
4 wins
BFLY Butterfly Network, Inc.
$6.65 -29.2% 1M +198.2% 1Y
Market cap
$1.93B
P/E
–
Revenue (TTM)
$112.15M
Div. yield
–
Diagnostic Equipment Healthcare
2 wins

Head to Head

7 decided of 12

Neogen leads on 4 of the 12 questions below (Neogen 4, Butterfly Network 2, Firefly Neuroscience 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAIFFNEOGBFLYLeader
Larger companyMarket capitalisation $20.57M $2.72B $1.93B NEOG
Cheaper on earningsLower P/E, profitable companies only -2.2x -48.5x -25.8x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 38.2x — –
Faster revenue growthRevenue growth, trailing twelve months +320.3% -0.3% +28.1% AIFF
More profitableNet margin, trailing twelve months -524.5% -6.3% -66.7% NEOG
Better return on capitalReturn on invested capital — -0.2% — –
Less leveragedLower net debt / EBITDA — 5.4x — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -54.8% +97.3% +198.2% BFLY
Better 5-year returnAnnualised price return, 5 years -61.1%/yr -21.6%/yr -8.0%/yr BFLY
Less volatileAnnualised volatility, 1 year 160.0% 55.7% 114.6% NEOG
Higher overall scoreMean of the five percentile scores vs peers 38/100 57/100 44/100 NEOG

Percentile Scorecard

AIFFNEOGBFLY

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

AxisAIFFNEOGBFLY
Valuation 15 #194 of 228 73 #63 of 228 29 #163 of 228
Growth 61 #87 of 221 49 #114 of 221 68 #72 of 221
Profitability 14 #179 of 208 61 #81 of 208 31 #143 of 208
Financial Health 79 #52 of 239 46 #129 of 239 60 #96 of 239
Shareholder Returns 20 #110 of 137 57 #59 of 137 35 #90 of 137
Overall 38 57 44
  • AIFF ranked among 248 companies in Medical Devices and Diagnostics
  • NEOG ranked among 248 companies in Medical Devices and Diagnostics
  • BFLY ranked among 248 companies in Medical Devices and Diagnostics

Price Performance

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

Returns

PeriodAIFFNEOGBFLYSPY
1 month -53.2%-11.3%-29.2% -0.8%
3 months -20.3%+30.7%-6.2% +3.5%
6 months -55.7%+29.2%+21.4% +7.0%
Year to date +6.8%+74.7%+75.0% +12.2%
1 year -54.8%+97.3%+198.2% +13.0%
3 years -83.7%-20.3%+741.8% +86.3%
3 years, per year -45.4%-7.3%+103.5% +23.1%
5 years -99.1%-70.3%-34.2% +68.6%
5 years, per year -61.1%-21.6%-8.0% +11.0%
10 years -79.1%-36.4%— +258.0%
10 years, per year -14.5%-4.4%— +13.6%

Risk

MeasureAIFFNEOGBFLYSPY
Volatility, 1Y 160.0%55.7%114.6% 12.7%
Downside volatility, 1Y 109.1%46.5%91.7% 12.7%
Beta vs S&P 500, 1Y 1.501.442.97 1.00
Return / volatility, 1Y -0.341.751.73 1.02
Max drawdown, 5Y -99.6%-90.6%-93.4% -25.4%
From 52-week high -68.9%-12.7%-33.1% -1.8%
52-week high $3.02$13.98$9.94 $779.14
52-week low $0.64$5.41$1.97 $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.

MultipleAIFFNEOGBFLY
P/E now vs peer median -2.0xmedian 30.6x -47.5xmedian 30.6x -23.3xmedian 30.6x
P/S now vs peer median 10.8xmedian 3.0x 3.0xmedian 3.0x 14.1xmedian 3.0x
EV/EBITDA now vs peer median -1.1xmedian 17.5x 29.5xmedian 17.5x -20.2xmedian 17.5x
P/FCF now vs peer median -2.7xmedian 23.3x 53.5xmedian 23.3x -56.4xmedian 23.3x
P/B now vs peer median 1.3xmedian 2.4x 1.3xmedian 2.4x 8.4xmedian 2.4x
PEG now vs peer median -0.03median 0.87 1.69median 0.87 -0.86median 0.87

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 monthsAIFFNEOGBFLY
Revenue $1.80M $883.99M $112.15M
Gross profit $802.00K $418.98M $59.04M
Operating income -$9.14M -$7.38M -$79.38M
Net income -$9.11M -$56.10M -$74.85M
Free cash flow -$7.20M $49.80M -$28.04M
R&D $1.78M $19.76M $38.10M
EPS (diluted) $-0.70 $-0.26 $-0.29
Cash & equivalents $9.23M $172.00M $124.66M
Total debt – $774.20M –
Shares (diluted) 13.50M 218.10M 262.10M
Enterprise value $1.15M $2.06B $1.38B

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
MetricAIFFNEOGBFLY
P/E -2.0x -47.5x -23.3x
P/FCF -2.7x 53.5x -56.4x
P/Operating cash flow -2.8x 31.2x -65.9x
P/S 10.8x 3.0x 14.1x
P/B 1.3x 1.3x 8.4x
P/Tangible book 1.4x 3.4x 8.7x
EV/EBITDA -1.1x 29.5x -20.2x
EV/EBIT -1.1x -443.0x -18.4x
EV/Revenue 5.6x 3.7x 13.0x
EV/FCF -1.4x 65.6x -52.0x
EV/Operating cash flow -1.4x 38.3x -60.7x
PEG (3Y EPS CAGR) -0.03 1.69 -0.86

Growth

14 metrics
MetricAIFFNEOGBFLY
Revenue growth (1Y) 320.3% -0.3% 28.1%
Revenue CAGR (3Y) -40.3% -1.3% 15.6%
Gross profit growth (1Y) 99.0% 1.8% 8.8%
Gross profit CAGR (3Y) -32.6% -3.1% 13.3%
Operating income growth (1Y) 19.8% 99.3% -14.8%
Operating income CAGR (3Y) -52.0% -29.0% 21.1%
Net income growth (1Y) 60.1% 94.6% -19.1%
Net income CAGR (3Y) 15.8% -28.3% 20.8%
EPS growth (1Y) 81.8% 94.6% -12.9%
EPS CAGR (3Y) 69.0% -28.0% 27.0%
Operating cash flow growth (1Y) 19.1% -1.9% 19.6%
Operating cash flow CAGR (3Y) -8.4% 2.9% 44.5%
Free cash flow growth (1Y) 17.6% 1,631% 12.2%
Free cash flow CAGR (3Y) -6.3% 126.1% 42.8%

Profitability

14 metrics
MetricAIFFNEOGBFLY
Gross margin 44.6% 47.4% 52.6%
EBITDA margin -496.9% 12.5% -64.4%
Operating margin -508.1% -0.8% -70.8%
Pretax margin -506.2% -7.7% -66.7%
Net margin -524.5% -6.3% -66.7%
FCF margin -400.2% 5.6% -25.0%
Operating cash flow margin -388.6% 9.6% -21.4%
Return on equity -78.8% -2.7% -39.3%
Return on assets -65.8% -1.7% -26.3%
Return on invested capital – -0.2% –
Return on capital employed -77.9% -0.2% -35.1%
Asset turnover 0.1x 0.3x 0.4x
Cash conversion (OCF / net income) 0.8x -1.5x 0.3x
Stock comp / revenue 36.4% 1.3% 21.3%

Financial Health

11 metrics
MetricAIFFNEOGBFLY
Debt / assets – 23.4% –
Debt / equity – 0.4x –
Net debt / EBITDA – 5.4x –
Debt / FCF – 15.5x –
Liabilities / assets 12.6% 36.8% 33.1%
Equity / assets 87.4% 63.2% 66.9%
Interest coverage – – -59.4x
Current ratio 4.9x 3.9x 4.1x
Quick ratio 4.5x 2.1x 2.7x
Cash ratio 4.4x 1.2x 2.1x
Altman Z-score -5.24 1.50 5.90

Shareholder Returns

7 metrics
MetricAIFFNEOGBFLY
Dividend yield – – –
Net buyback yield -2.1% -0.1% -0.5%
Shareholder yield -2.1% -0.1% -0.5%
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.

ConsensusAIFFNEOGBFLY
Forward P/E – 38.2xFY2026 –
EPS, next fiscal year – $0.32FY2026 $-0.10FY2026
EPS growth, next FY – 0.0%FY2026 –
EPS growth, the year after – +31.3% –
Revenue, next fiscal year – $847.28MFY2026 $114.50MFY2026
Revenue growth, next FY – -2.7%FY2026 +17.3%FY2026
Revenue growth, the year after – -1.5% +26.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAIFFNEOGBFLY
Held by institutions 7.9% 100.0% 59.9%
Institutions holding 23 315 245
Change in shares held, QoQ +34.3% +1.6% +13.9%
Institutions buying 10 151 143
Institutions selling 6 106 59
Buyers to sellers 1.67 1.42 2.42

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.

AIFFNEOGBFLY
AIFF 1.00 0.08 0.13
NEOG 0.08 1.00 0.25
BFLY 0.13 0.25 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AIFF, NEOG and BFLY?

Neogen (NEOG) is the largest by market capitalisation: Firefly Neuroscience (AIFF) $20.57M, Neogen (NEOG) $2.72B, Butterfly Network (BFLY) $1.93B.

Which company is growing faster?

Firefly Neuroscience (AIFF) grew revenue fastest over the trailing twelve months: Firefly Neuroscience (AIFF) +320.3%, Neogen (NEOG) -0.3%, Butterfly Network (BFLY) +28.1%.

Which company is more profitable?

Neogen (NEOG) has the highest net margin (Firefly Neuroscience (AIFF) -524.5%, Neogen (NEOG) -6.3%, Butterfly Network (BFLY) -66.7%).

Which stock has performed better?

Over the past year Butterfly Network (BFLY) returned the most: Firefly Neuroscience (AIFF) -54.8%, Neogen (NEOG) +97.3%, Butterfly Network (BFLY) +198.2%. Over five years, Butterfly Network (BFLY) compounded fastest (Firefly Neuroscience (AIFF) -61.1%/yr, Neogen (NEOG) -21.6%/yr, Butterfly Network (BFLY) -8.0%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Neogen (NEOG) has been the steadiest (Firefly Neuroscience (AIFF) 160.0%, Neogen (NEOG) 55.7%, Butterfly Network (BFLY) 114.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AIFF, NEOG and BFLY?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Neogen (NEOG) 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.