LDOS vs NOC vs OSIS Stock Comparison

Leidos Holdings, Northrop Grumman and Osi Systems Prices as of Oct 26, 2026 Peers: Industry group
LDOS Leidos Holdings, Inc.
$139.91 +13.2% 1M -26.3% 1Y
Market cap
$17.56B
P/E
12.8x
Revenue (TTM)
$17.63B
Div. yield
0.01%
Defense Industrials
3 wins
OSIS Osi Systems Inc
$198.09 +0.4% 1M -21.1% 1Y
Market cap
$3.34B
P/E
21.6x
Revenue (TTM)
$1.79B
Div. yield
–
Defense Industrials
2 wins

Head to Head

12 decided of 12

Northrop Grumman leads on 7 of the 12 questions below (Northrop Grumman 7, Leidos Holdings 3, Osi Systems 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionLDOSNOCOSISLeader
Larger companyMarket capitalisation $17.56B $78.67B $3.34B NOC
Cheaper on earningsLower P/E, profitable companies only 12.8x 17.4x 21.6x LDOS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 11.0x 18.4x 17.0x LDOS
Faster revenue growthRevenue growth, trailing twelve months +3.4% +6.5% +4.3% NOC
More profitableNet margin, trailing twelve months 7.8% 10.4% 8.7% NOC
Better return on capitalReturn on invested capital 13.9% 12.2% 9.4% LDOS
Less leveragedLower net debt / EBITDA 2.3x 1.7x 2.4x NOC
Higher dividend yieldTrailing dividend yield 0.01% 0.02% 0.00% NOC
Better 1-year returnPrice return, last 12 months -26.3% -6.6% -21.1% NOC
Better 5-year returnAnnualised price return, 5 years +7.2%/yr +7.8%/yr +15.9%/yr OSIS
Less volatileAnnualised volatility, 1 year 35.6% 28.6% 43.6% NOC
Higher overall scoreMean of the five percentile scores vs peers 70/100 57/100 75/100 OSIS

Percentile Scorecard

LDOSNOCOSIS

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

AxisLDOSNOCOSIS
Valuation 98 #3 of 100 74 #27 of 100 87 #14 of 100
Growth 57 #42 of 97 39 #60 of 97 67 #33 of 97
Profitability 85 #15 of 96 77 #23 of 96 79 #21 of 96
Financial Health 34 #70 of 105 39 #65 of 105 44 #59 of 105
Shareholder Returns 75 #17 of 64 59 #27 of 64 98 #2 of 64
Overall 70 57 75
  • LDOS ranked among 107 companies in Aerospace and Defense
  • NOC ranked among 107 companies in Aerospace and Defense
  • OSIS ranked among 107 companies in Aerospace and Defense

Price Performance

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

Returns

PeriodLDOSNOCOSISSPY
1 month +13.2%+10.8%+0.4% -0.8%
3 months +21.6%+3.3%-8.8% +3.5%
6 months -3.0%-1.7%-32.0% +7.0%
Year to date -22.4%-0.8%-22.3% +12.2%
1 year -26.3%-6.6%-21.1% +13.0%
3 years +54.6%+19.5%+86.2% +86.3%
3 years, per year +15.6%+6.1%+23.0% +23.1%
5 years +41.4%+45.7%+109.0% +68.6%
5 years, per year +7.2%+7.8%+15.9% +11.0%
10 years +235.6%+147.9%+197.5% +258.0%
10 years, per year +12.9%+9.5%+11.5% +13.6%

Risk

MeasureLDOSNOCOSISSPY
Volatility, 1Y 35.6%28.6%43.6% 12.7%
Downside volatility, 1Y 37.3%28.3%44.4% 12.7%
Beta vs S&P 500, 1Y 0.260.001.17 1.00
Return / volatility, 1Y -0.74-0.23-0.48 1.02
Max drawdown, 5Y -50.3%-38.4%-37.9% -25.4%
From 52-week high -29.9%-26.4%-36.0% -1.8%
52-week high $199.55$768.02$309.68 $779.14
52-week low $100.00$473.40$192.30 $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.

MultipleLDOSNOCOSIS
P/E now vs peer median 12.8xmedian 26.8x 17.8xmedian 26.8x 21.2xmedian 26.8x
P/S now vs peer median 1.0xmedian 2.9x 1.8xmedian 2.9x 1.8xmedian 2.9x
EV/EBITDA now vs peer median 9.8xmedian 15.2x 14.8xmedian 15.2x 14.3xmedian 15.2x
P/FCF now vs peer median 8.1xmedian 25.5x 21.0xmedian 25.5x 13.9xmedian 25.5x
P/B now vs peer median 3.3xmedian 2.5x 4.3xmedian 2.5x 3.8xmedian 2.5x
PEG now vs peer median 0.45median 0.94 17.45median 0.94 1.13median 0.94

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 monthsLDOSNOCOSIS
Revenue $17.63B $43.59B $1.79B
Gross profit $3.14B $8.73B $593.09M
Operating income $2.03B $4.63B $218.97M
Net income $1.40B $4.52B $154.71M
Free cash flow $2.16B $3.83B $227.35M
R&D – – $79.14M
EPS (diluted) $10.92 $31.74 $8.95
Cash & equivalents $748.00M $3.74B $359.83M
Total debt $21.66B $58.43B $3.45B
Shares (diluted) 126.00M 142.40M 17.28M
Enterprise value $14.28B $66.12B $2.18B

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
MetricLDOSNOCOSIS
P/E 12.8x 17.8x 21.2x
P/FCF 8.1x 21.0x 13.9x
P/Operating cash flow 7.6x 15.3x 11.4x
P/S 1.0x 1.8x 1.8x
P/B 3.3x 4.3x 3.8x
P/Tangible book 4.0x 4.3x 4.9x
EV/EBITDA 9.8x 14.8x 14.3x
EV/EBIT 11.3x 19.7x 17.3x
EV/Revenue 1.3x 2.1x 2.1x
EV/FCF 10.6x 23.8x 16.7x
EV/Operating cash flow 9.9x 17.3x 13.8x
PEG (3Y EPS CAGR) 0.45 17.45 1.13

Growth

14 metrics
MetricLDOSNOCOSIS
Revenue growth (1Y) 3.4% 6.5% 4.3%
Revenue CAGR (3Y) 5.9% 4.1% 11.8%
Gross profit growth (1Y) 4.8% 9.8% 1.0%
Gross profit CAGR (3Y) 14.4% 3.4% 11.3%
Operating income growth (1Y) -0.4% 6.8% 0.7%
Operating income CAGR (3Y) 21.1% 6.4% 17.4%
Net income growth (1Y) -0.8% 12.5% 3.4%
Net income CAGR (3Y) 24.8% -1.1% 19.0%
EPS growth (1Y) 1.3% 13.3% 2.8%
EPS CAGR (3Y) 28.6% 1.0% 18.8%
Operating cash flow growth (1Y) 54.9% 53.2% 182.7%
Operating cash flow CAGR (3Y) 35.7% 12.5% 42.8%
Free cash flow growth (1Y) 63.2% 108.8% 305.3%
Free cash flow CAGR (3Y) 41.7% 22.3% 53.7%

Profitability

14 metrics
MetricLDOSNOCOSIS
Gross margin 17.8% 20.0% 33.2%
EBITDA margin 13.2% 14.1% 14.8%
Operating margin 11.5% 10.6% 12.3%
Pretax margin 10.2% 12.0% 10.8%
Net margin 7.8% 10.4% 8.7%
FCF margin 12.3% 8.8% 12.7%
Operating cash flow margin 13.0% 12.1% 15.4%
Return on equity 26.8% 24.7% 17.9%
Return on assets 9.0% 8.8% 6.1%
Return on invested capital 13.9% 12.2% 9.4%
Return on capital employed 16.5% 12.2% 10.9%
Asset turnover 1.1x 0.8x 0.7x
Cash conversion (OCF / net income) 1.6x 1.2x 1.8x
Stock comp / revenue 0.6% 0.3% 1.5%

Financial Health

11 metrics
MetricLDOSNOCOSIS
Debt / assets 38.6% 27.5% 40.0%
Debt / equity 1.1x 0.8x 1.2x
Net debt / EBITDA 2.3x 1.7x 2.4x
Debt / FCF 2.8x 3.8x 4.4x
Liabilities / assets 65.9% 64.4% 66.7%
Equity / assets 34.1% 35.6% 33.3%
Interest coverage – 7.1x 8.3x
Current ratio 1.6x 1.2x 3.2x
Quick ratio 1.4x 1.0x 2.2x
Cash ratio 0.2x 0.3x 0.7x
Altman Z-score 3.20 3.12 3.14

Shareholder Returns

7 metrics
MetricLDOSNOCOSIS
Dividend yield 1.2% 1.7% –
Net buyback yield 3.7% 0.7% 3.7%
Shareholder yield 5.0% 2.3% 3.7%
Payout ratio (earnings) 15.5% 30.2% –
Payout ratio (FCF) 10.0% 35.6% –
Dividend growth (1Y) 3.3% 8.0% –
Dividend CAGR (3Y) 2.8% 7.4% –

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.

ConsensusLDOSNOCOSIS
Forward P/E 11.0xFY2026 18.4xFY2026 17.0xFY2027
EPS, next fiscal year $12.75FY2026 $30.81FY2026 $11.62FY2027
EPS growth, next FY +6.3%FY2026 +17.0%FY2026 +12.3%FY2027
EPS growth, the year after -9.0% +3.7% +7.2%
Revenue, next fiscal year $17.52BFY2026 $42.95BFY2026 $1.85BFY2027
Revenue growth, next FY +2.0%FY2026 +2.4%FY2026 +3.5%FY2027
Revenue growth, the year after +14.9% +3.7% +16.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersLDOSNOCOSIS
Held by institutions 79.3% 83.4% 100.0%
Institutions holding 773 1,809 366
Change in shares held, QoQ +4.1% +0.3% +0.7%
Institutions buying 380 840 191
Institutions selling 294 639 134
Buyers to sellers 1.29 1.31 1.43

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.

LDOSNOCOSIS
LDOS 1.00 0.42 0.34
NOC 0.42 1.00 0.20
OSIS 0.34 0.20 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, LDOS, NOC and OSIS?

Northrop Grumman (NOC) is the largest by market capitalisation: Leidos Holdings (LDOS) $17.56B, Northrop Grumman (NOC) $78.67B, Osi Systems (OSIS) $3.34B.

Which stock is cheaper, LDOS, NOC and OSIS?

Leidos Holdings (LDOS) trades on the lowest price-to-earnings ratio (Leidos Holdings (LDOS) 12.8x, Northrop Grumman (NOC) 17.4x, Osi Systems (OSIS) 21.6x). On next year's consensus earnings, Leidos Holdings (LDOS) is cheapest (Leidos Holdings (LDOS) 11.0x, Northrop Grumman (NOC) 18.4x, Osi Systems (OSIS) 17.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Northrop Grumman (NOC) grew revenue fastest over the trailing twelve months: Leidos Holdings (LDOS) +3.4%, Northrop Grumman (NOC) +6.5%, Osi Systems (OSIS) +4.3%.

Which company is more profitable?

Northrop Grumman (NOC) has the highest net margin (Leidos Holdings (LDOS) 7.8%, Northrop Grumman (NOC) 10.4%, Osi Systems (OSIS) 8.7%). On return on invested capital, Leidos Holdings (LDOS) leads (Leidos Holdings (LDOS) 13.9%, Northrop Grumman (NOC) 12.2%, Osi Systems (OSIS) 9.4%).

Which stock has performed better?

Over the past year Northrop Grumman (NOC) returned the most: Leidos Holdings (LDOS) -26.3%, Northrop Grumman (NOC) -6.6%, Osi Systems (OSIS) -21.1%. Over five years, Osi Systems (OSIS) compounded fastest (Leidos Holdings (LDOS) +7.2%/yr, Northrop Grumman (NOC) +7.8%/yr, Osi Systems (OSIS) +15.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Northrop Grumman (NOC) has the highest dividend yield: Leidos Holdings (LDOS) 0.01%, Northrop Grumman (NOC) 0.02%, Osi Systems (OSIS) 0.00%. Osi Systems (OSIS) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Northrop Grumman (NOC) has been the steadiest (Leidos Holdings (LDOS) 35.6%, Northrop Grumman (NOC) 28.6%, Osi Systems (OSIS) 43.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, LDOS, NOC and OSIS?

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