EPAM vs. TAN

Last updated Jun 24, 2026

EPAM (EPAM Systems, Inc.) is a stock, while TAN (Invesco Solar ETF) is Alternative Energy Equities fund tracking the MAC Global Solar Energy Index. Over the past 10 years, EPAM returned 1.56%/yr vs 12.35%/yr for TAN. At a 0.36 correlation, their price movements are largely independent.

Performance

EPAM vs. TAN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in EPAM Systems, Inc. (EPAM) and Invesco Solar ETF (TAN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EPAM achieves a -62.47% return, which is significantly lower than TAN's 19.22% return. Over the past 10 years, EPAM has underperformed TAN with an annualized return of 1.56%, while TAN has yielded a comparatively higher 12.35% annualized return.

EPAM

• 1D: 1.12%
• 1M: -25.12%
• YTD: -62.47%
• 6M: -63.03%
• 1Y: -54.23%
• 3Y*: -28.91%
• 5Y*: -31.73%
• 10Y*: 1.56%

TAN

• 1D: -4.17%
• 1M: -11.21%
• YTD: 19.22%
• 6M: 16.19%
• 1Y: 82.66%
• 3Y*: -4.69%
• 5Y*: -7.06%
• 10Y*: 12.35%

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

EPAM vs. TAN - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EPAM EPAM Systems, Inc.	-62.47%	-12.38%	-21.36%	-9.28%	-50.97%	86.54%	68.91%	82.88%	7.99%	67.05%
TAN Invesco Solar ETF	19.22%	48.31%	-37.61%	-26.79%	-5.24%	-25.10%	233.96%	66.53%	-25.67%	54.38%

Correlation

The correlation between EPAM and TAN is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.12
Correlation (3Y) Calculated over the trailing 3-year period	0.25
Correlation (5Y) Calculated over the trailing 5-year period	0.35
Correlation (10Y) Calculated over the trailing 10-year period	0.38
Correlation (All Time) Calculated using the full available price history since Feb 8, 2012	0.36

Over the past year, the correlation between EPAM and TAN has dropped to 0.12 - well below their long-term average of 0.36, suggesting their price drivers have been diverging.

Return for Risk

EPAM vs. TAN — Risk / Return Rank

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

EPAM

EPAM Risk / Return Rank: 5
EPAM Sharpe Ratio Rank: 3
EPAM Sortino Ratio Rank: 4
EPAM Omega Ratio Rank: 4
EPAM Calmar Ratio Rank: 10
EPAM Martin Ratio Rank: 2

TAN

TAN Risk / Return Rank: 68
TAN Sharpe Ratio Rank: 70
TAN Sortino Ratio Rank: 63
TAN Omega Ratio Rank: 55
TAN Calmar Ratio Rank: 79
TAN Martin Ratio Rank: 70

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.

EPAM vs. TAN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for EPAM Systems, Inc. (EPAM) and Invesco Solar ETF (TAN). 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.

	EPAM	TAN	Difference
Sharpe ratio: Return per unit of total volatility	-1.17	2.16	-3.33
Sortino ratio: Return per unit of downside risk	-1.75	2.81	-4.55
Omega ratio: Gain probability vs. loss probability	0.77	1.33	-0.56
Calmar ratio: Return relative to maximum drawdown	-0.83	3.97	-4.80
Martin ratio: Return relative to average drawdown	-1.86	12.49	-14.35

EPAM vs. TAN - Sharpe Ratio Comparison

The current EPAM Sharpe Ratio is -1.17, which is lower than the TAN Sharpe Ratio of 2.16. The chart below compares the historical Sharpe Ratios of EPAM and TAN, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

EPAM vs. TAN - Drawdown Comparison

The maximum EPAM drawdown since its inception was -89.40%, smaller than the maximum TAN drawdown of -95.29%. Use the drawdown chart below to compare losses from any high point for EPAM and TAN.

Drawdown Indicators

	EPAM	TAN	Difference
Max Drawdown Largest peak-to-trough decline	-89.40%	-95.29%	+5.89%
Max Drawdown (1Y) Largest decline over 1 year	-65.65%	-20.94%	-44.71%
Max Drawdown (3Y) Largest decline over 3 years	-75.83%	-64.40%	-11.43%
Max Drawdown (5Y) Largest decline over 5 years	-89.40%	-73.95%	-15.45%
Max Drawdown (10Y) Largest decline over 10 years	-89.40%	-78.53%	-10.87%
Current Drawdown Current decline from peak	-89.28%	-73.11%	-16.17%
Average Drawdown Average peak-to-trough decline	-25.87%	-78.47%	+52.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.22%	6.64%	+22.58%

Volatility

EPAM vs. TAN - Volatility Comparison

EPAM Systems, Inc. (EPAM) has a higher volatility of 18.34% compared to Invesco Solar ETF (TAN) at 16.60%. This indicates that EPAM's price experiences larger fluctuations and is considered to be riskier than TAN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EPAM	TAN	Difference
Volatility (1M) Calculated over the trailing 1-month period	18.34%	16.60%	+1.74%
Volatility (6M) Calculated over the trailing 6-month period	40.20%	28.78%	+11.42%
Volatility (1Y) Calculated over the trailing 1-year period	46.58%	38.50%	+8.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	54.70%	40.14%	+14.56%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	45.93%	38.16%	+7.77%

Dividends

EPAM vs. TAN - Dividend Comparison

Neither EPAM nor TAN has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EPAM EPAM Systems, 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%
TAN Invesco Solar ETF	0.00%	0.00%	0.50%	0.09%	0.00%	0.00%	0.09%	0.30%	0.69%	1.77%	5.04%	1.60%

Frequently Asked Questions

Can I hold both EPAM and TAN in my portfolio?

EPAM and TAN have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EPAM or TAN?

EPAM has higher volatility (18.34%) compared to TAN (16.60%). In terms of maximum drawdown, EPAM dropped -89.40% vs TAN's -95.29%.

Which has better risk-adjusted returns?

TAN currently has the higher Sharpe Ratio (2.16 vs -1.17), 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.