DDOG vs FSLY Stock Comparison

Datadog and Fastly Prices as of Oct 26, 2026 Peers: Industry group
DDOG Datadog, Inc.
$280.24 +4.5% 1M +79.1% 1Y
Market cap
$100.59B
P/E
562.2x
Revenue (TTM)
$3.97B
Div. yield
–
IT Operations Software Technology
6 wins
FSLY Fastly, Inc.
$25.61 +2.6% 1M +207.4% 1Y
Market cap
$4.07B
P/E
–
Revenue (TTM)
$687.17M
Div. yield
–
Content Delivery Networks Technology
2 wins

Head to Head

8 decided of 12

Datadog leads on 6 of the 12 questions below (Datadog 6, Fastly 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionDDOGFSLYLeader
Larger companyMarket capitalisation $100.59B $4.07B DDOG
Cheaper on earningsLower P/E, profitable companies only 562.2x -49.8x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 103.0x 52.3x FSLY
Faster revenue growthRevenue growth, trailing twelve months +31.5% +20.4% DDOG
More profitableNet margin, trailing twelve months 4.5% -11.8% DDOG
Better return on capitalReturn on invested capital — -6.1% –
Less leveragedLower net debt / EBITDA — -3.3x –
Higher dividend yieldTrailing dividend yield — — –
Better 1-year returnPrice return, last 12 months +79.1% +207.4% FSLY
Better 5-year returnAnnualised price return, 5 years +12.3%/yr -11.9%/yr DDOG
Less volatileAnnualised volatility, 1 year 69.2% 118.6% DDOG
Higher overall scoreMean of the five percentile scores vs peers 76/100 54/100 DDOG

Percentile Scorecard

DDOGFSLY

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

AxisDDOGFSLY
Valuation 50 #33 of 65 12 #16 of 18
Growth 98 #2 of 56 94 #2 of 17
Profitability 82 #10 of 52 40 #10 of 16
Financial Health 78 #16 of 69 71 #6 of 18
Shareholder Returns 74 #7 of 24 –
Overall 76 54
  • DDOG ranked among 75 companies in Infrastructure Software
  • FSLY ranked among 19 companies in Cloud Computing

Price Performance

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

Returns

PeriodDDOGFSLYSPY
1 month +4.5%+2.6% -0.8%
3 months +11.3%+27.8% +3.5%
6 months +111.2%-0.7% +7.0%
Year to date +106.1%+151.6% +12.2%
1 year +79.1%+207.4% +13.0%
3 years +243.1%+81.4% +86.3%
3 years, per year +50.9%+22.0% +23.1%
5 years +78.4%-46.9% +68.6%
5 years, per year +12.3%-11.9% +11.0%

Risk

MeasureDDOGFSLYSPY
Volatility, 1Y 69.2%118.6% 12.7%
Downside volatility, 1Y 59.7%108.1% 12.7%
Beta vs S&P 500, 1Y 1.281.42 1.00
Return / volatility, 1Y 1.141.75 1.02
Max drawdown, 5Y -68.1%-90.8% -25.4%
From 52-week high -4.4%-23.6% -1.8%
52-week high $293.26$33.50 $779.14
52-week low $102.61$7.96 $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.

MultipleDDOGFSLY
P/E now vs peer median 562.2xmedian 50.3x -49.8xmedian 15.8x
P/S now vs peer median 25.4xmedian 2.5x 5.9xmedian 2.7x
EV/EBITDA now vs peer median 583.5xmedian 35.4x 988.3xmedian 24.2x
P/FCF now vs peer median 85.1xmedian 18.0x 80.4xmedian 10.3x
P/B now vs peer median 23.0xmedian 1.5x 4.1xmedian 1.8x
PEG now vs peer median 9.89median 1.58 -1.88median 0.35

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 monthsDDOGFSLY
Revenue $3.97B $687.17M
Gross profit $3.15B $422.42M
Operating income $16.33M -$82.21M
Net income $177.58M -$81.10M
Free cash flow $1.18B $50.68M
R&D $1.73B $167.06M
EPS (diluted) $0.48 $-0.51
Cash & equivalents $434.96M $89.80M
Total debt – $323.96M
Shares (diluted) 371.02M 157.60M
Enterprise value $82.23B $2.70B

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
MetricDDOGFSLY
P/E 562.2x -49.8x
P/FCF 85.1x 80.4x
P/Operating cash flow 81.8x 34.1x
P/S 25.4x 5.9x
P/B 23.0x 4.1x
P/Tangible book 23.2x 4.2x
EV/EBITDA 583.5x 988.3x
EV/EBIT 5,855x -49.4x
EV/Revenue 24.1x 5.9x
EV/FCF 80.9x 80.1x
EV/Operating cash flow 77.8x 34.0x
PEG (3Y EPS CAGR) 9.89 -1.88

Growth

14 metrics
MetricDDOGFSLY
Revenue growth (1Y) 31.5% 20.4%
Revenue CAGR (3Y) 27.9% 13.6%
Gross profit growth (1Y) 30.8% 37.3%
Gross profit CAGR (3Y) 28.0% 20.8%
Operating income growth (1Y) 189.5% 45.2%
Operating income CAGR (3Y) 28.7% 27.0%
Net income growth (1Y) 42.5% 45.0%
Net income CAGR (3Y) 60.5% 21.2%
EPS growth (1Y) 37.8% 49.2%
EPS CAGR (3Y) 56.8% 26.5%
Operating cash flow growth (1Y) 27.3% 124.3%
Operating cash flow CAGR (3Y) 36.3% 91.8%
Free cash flow growth (1Y) 27.7% 49.6%
Free cash flow CAGR (3Y) 37.6% 47.1%

Profitability

14 metrics
MetricDDOGFSLY
Gross margin 79.5% 61.5%
EBITDA margin 4.1% 0.6%
Operating margin 0.4% -12.0%
Pretax margin 5.0% -12.2%
Net margin 4.5% -11.8%
FCF margin 29.8% 7.4%
Operating cash flow margin 31.0% 17.4%
Return on equity 4.2% -8.3%
Return on assets 2.4% -5.4%
Return on invested capital – -6.1%
Return on capital employed 0.3% -6.0%
Asset turnover 0.5x 0.5x
Cash conversion (OCF / net income) 6.9x -1.5x
Stock comp / revenue 20.7% 19.7%

Financial Health

11 metrics
MetricDDOGFSLY
Debt / assets – 21.5%
Debt / equity – 0.3x
Net debt / EBITDA – -3.3x
Debt / FCF – 6.4x
Liabilities / assets 42.1% 34.1%
Equity / assets 57.9% 65.9%
Interest coverage 1.4x -6.3x
Current ratio 3.2x 3.4x
Quick ratio 3.2x 3.2x
Cash ratio 2.7x 2.4x
Altman Z-score 20.21 4.24

Shareholder Returns

7 metrics
MetricDDOGFSLY
Dividend yield – –
Net buyback yield -0.1% -0.2%
Shareholder yield -0.1% -0.2%
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.

ConsensusDDOGFSLY
Forward P/E 103.0xFY2026 52.3xFY2026
EPS, next fiscal year $2.72FY2026 $0.49FY2026
EPS growth, next FY +32.7%FY2026 +276.9%FY2026
EPS growth, the year after +2.2% +22.4%
Revenue, next fiscal year $4.18BFY2026 $724.28MFY2026
Revenue growth, next FY +21.7%FY2026 +16.1%FY2026
Revenue growth, the year after +24.9% +13.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersDDOGFSLY
Held by institutions 90.4% 94.0%
Institutions holding 1,265 283
Change in shares held, QoQ +6.1% +7.5%
Institutions buying 738 156
Institutions selling 432 89
Buyers to sellers 1.71 1.75

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.

DDOGFSLY
DDOG 1.00 0.24
FSLY 0.24 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, DDOG and FSLY?

Datadog (DDOG) is the largest by market capitalisation: Datadog (DDOG) $100.59B, Fastly (FSLY) $4.07B.

Which company is growing faster?

Datadog (DDOG) grew revenue fastest over the trailing twelve months: Datadog (DDOG) +31.5%, Fastly (FSLY) +20.4%.

Which company is more profitable?

Datadog (DDOG) has the highest net margin (Datadog (DDOG) 4.5%, Fastly (FSLY) -11.8%).

Which stock has performed better?

Over the past year Fastly (FSLY) returned the most: Datadog (DDOG) +79.1%, Fastly (FSLY) +207.4%. Over five years, Datadog (DDOG) compounded fastest (Datadog (DDOG) +12.3%/yr, Fastly (FSLY) -11.9%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Datadog (DDOG) has been the steadiest (Datadog (DDOG) 69.2%, Fastly (FSLY) 118.6%). Volatility measures how widely the price swings, not the risk of the business.

Do DDOG and FSLY move together?

Their daily returns over the past year have a correlation of 0.24, a weak relationship. Holding both diversifies more than two closely linked stocks would.

Which is the better stock, DDOG and FSLY?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Datadog (DDOG) leads on 6. 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.