EXLS vs. TTEK

Last updated Jun 4, 2026

EXLS (ExlService Holdings, Inc.) and TTEK (Tetra Tech, Inc.) are both stocks. EXLS operates in Information Technology Services (Technology), while TTEK operates in Engineering & Construction (Industrials). Over the past 10 years, EXLS returned 10.91%/yr vs 17.31%/yr for TTEK. At a 0.43 correlation, their price movements are largely independent.

Performance

EXLS vs. TTEK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ExlService Holdings, Inc. (EXLS) and Tetra Tech, Inc. (TTEK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EXLS achieves a -30.61% return, which is significantly lower than TTEK's -16.76% return. Over the past 10 years, EXLS has underperformed TTEK with an annualized return of 10.91%, while TTEK has yielded a comparatively higher 17.31% annualized return.

EXLS

• 1D: -0.77%
• 1M: -7.16%
• YTD: -30.61%
• 6M: -26.72%
• 1Y: -36.86%
• 3Y*: -2.00%
• 5Y*: 7.24%
• 10Y*: 10.91%

TTEK

• 1D: 2.47%
• 1M: -11.99%
• YTD: -16.76%
• 6M: -19.63%
• 1Y: -20.12%
• 3Y*: -2.52%
• 5Y*: 3.77%
• 10Y*: 17.31%

*Multi-year figures are annualized to reflect compound growth (CAGR)

EXLS vs. TTEK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EXLS ExlService Holdings, Inc.	-30.61%	-4.37%	43.86%	-8.96%	17.03%	70.06%	22.56%	32.00%	-12.81%	19.65%
TTEK Tetra Tech, Inc.	-16.76%	-15.19%	19.98%	15.74%	-13.96%	47.46%	35.34%	67.76%	8.39%	12.57%

Correlation

The correlation between EXLS and TTEK is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.37
Correlation (5Y) Calculated over the trailing 5-year period	0.44
Correlation (10Y) Calculated over the trailing 10-year period	0.46
Correlation (All Time) Calculated using the full available price history since Oct 23, 2006	0.43

The correlation between EXLS and TTEK shifts across timeframes, from 0.34 (1 year) to 0.46 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap EXLS : $4.62B TTEK : $7.30B
EPS EXLS : $1.56 TTEK : $2.20
PE Ratio EXLS : 18.89 TTEK : 12.66
PEG Ratio EXLS : 0.81 TTEK : 3.24
PS Ratio EXLS : 2.20 TTEK : 1.50
PB Ratio EXLS : 5.93 TTEK : 3.92
Total Revenue (TTM) EXLS : $2.16B TTEK : $4.91B
Gross Profit (TTM) EXLS : $829.84M TTEK : $960.15M
EBITDA (TTM) EXLS : $430.82M TTEK : $627.52M

Return for Risk

EXLS vs. TTEK — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

EXLS

EXLS Risk / Return Rank: 6
EXLS Sharpe Ratio Rank: 4
EXLS Sortino Ratio Rank: 7
EXLS Omega Ratio Rank: 5
EXLS Calmar Ratio Rank: 9
EXLS Martin Ratio Rank: 4

TTEK

TTEK Risk / Return Rank: 17
TTEK Sharpe Ratio Rank: 16
TTEK Sortino Ratio Rank: 16
TTEK Omega Ratio Rank: 16
TTEK Calmar Ratio Rank: 22
TTEK Martin Ratio Rank: 13

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

EXLS vs. TTEK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ExlService Holdings, Inc. (EXLS) 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.

	EXLS	TTEK	Difference
Sharpe ratio Return per unit of total volatility	-1.06	-0.58	-0.48
Sortino ratio Return per unit of downside risk	-1.34	-0.66	-0.68
Omega ratio Gain probability vs. loss probability	0.79	0.91	-0.12
Calmar ratio Return relative to maximum drawdown	-0.84	-0.53	-0.31
Martin ratio Return relative to average drawdown	-1.56	-1.23	-0.33
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EXLS vs. TTEK - Sharpe Ratio Comparison

The current EXLS Sharpe Ratio is -1.06, which is lower than the TTEK Sharpe Ratio of -0.58. The chart below compares the historical Sharpe Ratios of EXLS and TTEK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	EXLS	TTEK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.06	-0.58	-0.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.24	0.12	+0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.35	0.54	-0.19
Sharpe Ratio (All Time) Calculated using the full available price history	0.28	0.34	-0.05

Drawdowns

EXLS vs. TTEK - Drawdown Comparison

The maximum EXLS drawdown since its inception was -80.93%, roughly equal to the maximum TTEK drawdown of -77.89%. Use the drawdown chart below to compare losses from any high point for EXLS and TTEK.

Drawdown Indicators

	EXLS	TTEK	Difference
Max Drawdown Largest peak-to-trough decline	-80.93%	-77.89%	-3.04%
Max Drawdown (1Y) Largest decline over 1 year	-44.06%	-38.30%	-5.76%
Max Drawdown (3Y) Largest decline over 3 years	-47.97%	-47.50%	-0.47%
Max Drawdown (5Y) Largest decline over 5 years	-47.97%	-47.50%	-0.47%
Max Drawdown (10Y) Largest decline over 10 years	-47.97%	-47.50%	-0.47%
Current Drawdown Current decline from peak	-43.15%	-44.25%	+1.10%
Average Drawdown Average peak-to-trough decline	-17.12%	-20.65%	+3.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.64%	16.39%	+7.25%

Volatility

EXLS vs. TTEK - Volatility Comparison

ExlService Holdings, Inc. (EXLS) has a higher volatility of 13.57% compared to Tetra Tech, Inc. (TTEK) at 10.81%. This indicates that EXLS's price experiences larger fluctuations and is considered to be riskier than TTEK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EXLS	TTEK	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.57%	10.81%	+2.76%
Volatility (6M) Calculated over the trailing 6-month period	30.90%	27.17%	+3.73%
Volatility (1Y) Calculated over the trailing 1-year period	34.98%	34.93%	+0.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.54%	32.06%	-1.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.84%	32.03%	-1.19%

Dividends

EXLS vs. TTEK - Dividend Comparison

EXLS has not paid dividends to shareholders, while TTEK's dividend yield for the trailing twelve months is around 0.96%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EXLS ExlService Holdings, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TTEK Tetra Tech, Inc.	0.96%	0.75%	0.57%	0.61%	0.61%	0.45%	0.57%	0.66%	0.89%	0.81%	0.81%	1.19%

Financials

EXLS vs. TTEK - Profitability Comparison

The chart below illustrates the profitability comparison between ExlService Holdings, Inc. and Tetra Tech, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

EXLS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, ExlService Holdings, Inc. reported a gross profit of 222.08M and revenue of 570.35M. Therefore, the gross margin over that period was 38.9%.

TTEK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Tetra Tech, Inc. reported a gross profit of 214.09M and revenue of 1.22B. Therefore, the gross margin over that period was 17.6%.

EXLS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, ExlService Holdings, Inc. reported an operating income of 91.83M and revenue of 570.35M, resulting in an operating margin of 16.1%.

TTEK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Tetra Tech, Inc. reported an operating income of 131.52M and revenue of 1.22B, resulting in an operating margin of 10.8%.

EXLS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, ExlService Holdings, Inc. reported a net income of 67.08M and revenue of 570.35M, resulting in a net margin of 11.8%.

TTEK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Tetra Tech, Inc. reported a net income of 233.58M and revenue of 1.22B, resulting in a net margin of 19.1%.

Frequently Asked Questions

Can I hold both EXLS and TTEK in my portfolio?

EXLS and TTEK have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EXLS or TTEK?

EXLS has higher volatility (13.57%) compared to TTEK (10.81%). In terms of maximum drawdown, EXLS dropped -80.93% vs TTEK's -77.89%.

Which has better risk-adjusted returns?

TTEK currently has the higher Sharpe Ratio (-0.58 vs -1.06), 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.