LDOS vs. TTEK
LDOS (Leidos Holdings, Inc.) and TTEK (Tetra Tech, Inc.) are both stocks. LDOS operates in Information Technology Services (Technology), while TTEK operates in Engineering & Construction (Industrials). Over the past 10 years, LDOS returned 14.30%/yr vs 18.36%/yr for TTEK. Their 0.42 correlation means their historical movements had little consistent relationship.
Performance
LDOS vs. TTEK - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, LDOS achieves a -35.53% return, which is significantly lower than TTEK's -0.71% return. Over the past 10 years, LDOS has underperformed TTEK with an annualized return of 14.30%, while TTEK has yielded a comparatively higher 18.36% annualized return.
LDOS
- 1D
- 2.84%
- 1M
- 6.21%
- 6M
- -38.23%
- YTD
- -35.53%
- 1Y
- -26.62%
- 3Y*
- 6.16%
- 5Y*
- 2.99%
- 10Y*
- 14.30%
- ALL TIME*
- 6.36%
TTEK
- 1D
- 2.19%
- 1M
- 10.90%
- 6M
- -11.57%
- YTD
- -0.71%
- 1Y
- -6.84%
- 3Y*
- -0.04%
- 5Y*
- 5.11%
- 10Y*
- 18.36%
- ALL TIME*
- 15.01%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $148.41M | $155.02M | $188.97M | |
TTEK Tetra Tech, Inc. | $111.00M | $93.88M | $104.42M |
LDOS vs. TTEK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
LDOS Leidos Holdings, Inc. | -35.53% | 26.50% | 34.52% | 4.50% | 20.04% | -14.20% | 8.95% | 88.82% | -16.72% | 29.14% |
TTEK Tetra Tech, Inc. | -0.71% | -15.19% | 19.98% | 15.74% | -13.96% | 47.46% | 35.34% | 67.76% | 8.39% | 12.57% |
Correlation
The correlation between LDOS and TTEK is 0.45, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.45 |
Correlation (3Y) Balances recent behavior with more history. | 0.46 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.42 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.43 |
Correlation (All Time) Calculated using the full available price history since Oct 13, 2006 | 0.42 |
Fundamentals
LDOS:
$14.54B
TTEK:
$8.61B
LDOS:
$10.92
TTEK:
$1.66
LDOS:
10.59
TTEK:
19.93
LDOS:
0.09
TTEK:
5.11
LDOS:
0.87
TTEK:
1.71
LDOS:
2.95
TTEK:
4.65
LDOS:
$17.33B
TTEK:
$5.07B
LDOS:
$3.04B
TTEK:
$951.81M
LDOS:
$2.34B
TTEK:
$667.08M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
LDOS vs. TTEK — Risk / Return Rank
LDOS
TTEK
LDOS vs. TTEK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Leidos Holdings, Inc. (LDOS) and Tetra Tech, Inc. (TTEK). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| LDOS | TTEK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.60 | ||
| Sortino ratioReturn per unit of downside risk | -0.97 | ||
| Omega ratioGain probability vs. loss probability | 0.86 | 0.99 | -0.13 |
| Calmar ratioReturn relative to maximum drawdown | -0.54 | -0.24 | -0.31 |
| Martin ratioReturn relative to average drawdown | -1.20 | -0.46 | -0.74 |
Loading charts...
Drawdowns
LDOS vs. TTEK - Drawdown Comparison
The maximum LDOS drawdown since its inception was -54.72%, smaller than the maximum TTEK drawdown of -77.89%. Use the drawdown chart below to compare losses from any high point for LDOS and TTEK.
Loading charts...
Drawdown Indicators
| LDOS | TTEK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.72% | -77.89% | +23.17% |
Max Drawdown (1Y)Largest decline over 1 year | -49.47% | -38.30% | -11.17% |
Max Drawdown (3Y)Largest decline over 3 years | -49.47% | -47.50% | -1.97% |
Max Drawdown (5Y)Largest decline over 5 years | -49.47% | -47.50% | -1.97% |
Max Drawdown (10Y)Largest decline over 10 years | -49.47% | -47.50% | -1.97% |
Current DrawdownCurrent decline from peak | -41.59% | -33.50% | -8.09% |
Average DrawdownAverage peak-to-trough decline | -19.85% | -20.74% | +0.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 22.47% | 19.81% | +2.66% |
Volatility
LDOS vs. TTEK - Volatility Comparison
Leidos Holdings, Inc. (LDOS) and Tetra Tech, Inc. (TTEK) have volatilities of 9.60% and 9.96%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| LDOS | TTEK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.60% | 9.96% | -0.36% |
Volatility (6M)Calculated over the trailing 6-month period | 26.99% | 28.02% | -1.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 31.77% | 36.78% | -5.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.27% | 32.22% | -4.95% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.60% | 32.17% | -4.57% |
Dividends
LDOS vs. TTEK - Dividend Comparison
LDOS's dividend yield for the trailing twelve months is around 1.46%, more than TTEK's 0.81% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LDOS Leidos Holdings, Inc. | 1.46% | 0.90% | 1.07% | 1.35% | 1.37% | 1.57% | 1.29% | 1.35% | 2.43% | 1.98% | 29.17% | 3.41% |
TTEK Tetra Tech, Inc. | 0.81% | 0.75% | 0.57% | 0.61% | 0.61% | 0.45% | 0.57% | 0.66% | 0.89% | 0.81% | 0.81% | 1.19% |
Financials
LDOS vs. TTEK - Financials Comparison
This section allows you to compare key financial metrics between Leidos Holdings, Inc. and Tetra Tech, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
LDOS vs. TTEK - Profitability Comparison
LDOS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Leidos Holdings, Inc. reported a gross profit of 761.00M and revenue of 4.40B. Therefore, the gross margin over that period was 17.3%.
TTEK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Tetra Tech, Inc. reported a gross profit of 243.21M and revenue of 1.31B. Therefore, the gross margin over that period was 18.6%.
LDOS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Leidos Holdings, Inc. reported an operating income of 508.00M and revenue of 4.40B, resulting in an operating margin of 11.6%.
TTEK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Tetra Tech, Inc. reported an operating income of 157.93M and revenue of 1.31B, resulting in an operating margin of 12.1%.
LDOS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Leidos Holdings, Inc. reported a net income of 328.00M and revenue of 4.40B, resulting in a net margin of 7.5%.
TTEK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Tetra Tech, Inc. reported a net income of 109.58M and revenue of 1.31B, resulting in a net margin of 8.4%.
Frequently Asked Questions
LDOS and TTEK have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TTEK has higher volatility (9.96%) compared to LDOS (9.60%). In terms of maximum drawdown, LDOS dropped -54.72% vs TTEK's -77.89%.
TTEK currently has the higher Sharpe Ratio (-0.25 vs -0.85), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for LDOS and TTEK
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer