FTEK vs. ENPH
FTEK (Fuel Tech, Inc.) and ENPH (Enphase Energy, Inc.) are both stocks. FTEK operates in Pollution & Treatment Controls (Industrials), while ENPH operates in Solar (Technology). Over the past 10 years, FTEK returned -0.66%/yr vs 43.09%/yr for ENPH. At a 0.13 correlation, their price movements are largely independent.
Performance
FTEK vs. ENPH - Performance Comparison
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Returns By Period
In the year-to-date period, FTEK achieves a -5.77% return, which is significantly lower than ENPH's 125.68% return. Over the past 10 years, FTEK has underperformed ENPH with an annualized return of -0.66%, while ENPH has yielded a comparatively higher 43.09% annualized return.
FTEK
- 1D
- -0.68%
- 1M
- -8.70%
- YTD
- -5.77%
- 6M
- -16.95%
- 1Y
- -8.12%
- 3Y*
- 2.63%
- 5Y*
- -7.32%
- 10Y*
- -0.66%
ENPH
- 1D
- 13.48%
- 1M
- 113.68%
- YTD
- 125.68%
- 6M
- 148.39%
- 1Y
- 75.05%
- 3Y*
- -26.46%
- 5Y*
- -11.62%
- 10Y*
- 43.09%
FTEK vs. ENPH - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FTEK Fuel Tech, Inc. | -5.77% | 48.57% | 0.00% | -17.65% | -8.93% | -63.92% | 308.42% | -20.17% | 6.25% | -2.61% |
ENPH Enphase Energy, Inc. | 125.68% | -53.33% | -48.02% | -50.13% | 44.83% | 4.26% | 571.53% | 452.43% | 96.27% | 138.61% |
Correlation
The correlation between FTEK and ENPH is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.11 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.20 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.13 |
Correlation (All Time) Calculated using the full available price history since Apr 2, 2012 | 0.13 |
The correlation between FTEK and ENPH shifts across timeframes, from 0.08 (3 years) to 0.20 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
FTEK:
$45.70M
ENPH:
$9.50B
FTEK:
-$0.09
ENPH:
$0.92
FTEK:
1.73
ENPH:
6.89
FTEK:
1.19
ENPH:
8.62
FTEK:
$26.38M
ENPH:
$1.40B
FTEK:
$12.07M
ENPH:
$619.16M
FTEK:
-$3.49M
ENPH:
$189.48M
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Return for Risk
FTEK vs. ENPH — Risk / Return Rank
FTEK
ENPH
FTEK vs. ENPH - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fuel Tech, Inc. (FTEK) and Enphase Energy, Inc. (ENPH). 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.
| FTEK | ENPH | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.11 | 0.89 | -1.00 |
Sortino ratioReturn per unit of downside risk | 0.38 | 1.81 | -1.43 |
Omega ratioGain probability vs. loss probability | 1.04 | 1.23 | -0.19 |
Calmar ratioReturn relative to maximum drawdown | -0.17 | 1.73 | -1.90 |
Martin ratioReturn relative to average drawdown | -0.25 | 3.14 | -3.40 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| FTEK | ENPH | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.11 | 0.89 | -1.00 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.12 | -0.17 | +0.05 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.01 | 0.55 | -0.56 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.06 | 0.22 | -0.28 |
Drawdowns
FTEK vs. ENPH - Drawdown Comparison
The maximum FTEK drawdown since its inception was -98.97%, roughly equal to the maximum ENPH drawdown of -95.97%. Use the drawdown chart below to compare losses from any high point for FTEK and ENPH.
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Drawdown Indicators
| FTEK | ENPH | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -98.97% | -95.97% | -3.00% |
Max Drawdown (1Y)Largest decline over 1 year | -67.22% | -43.13% | -24.09% |
Max Drawdown (3Y)Largest decline over 3 years | -67.22% | -86.23% | +19.01% |
Max Drawdown (5Y)Largest decline over 5 years | -68.77% | -92.23% | +23.46% |
Max Drawdown (10Y)Largest decline over 10 years | -86.07% | -92.23% | +6.16% |
Current DrawdownCurrent decline from peak | -96.12% | -78.47% | -17.65% |
Average DrawdownAverage peak-to-trough decline | -78.47% | -50.51% | -27.96% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 45.13% | 23.79% | +21.34% |
Volatility
FTEK vs. ENPH - Volatility Comparison
The current volatility for Fuel Tech, Inc. (FTEK) is 19.08%, while Enphase Energy, Inc. (ENPH) has a volatility of 32.78%. This indicates that FTEK experiences smaller price fluctuations and is considered to be less risky than ENPH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FTEK | ENPH | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 19.08% | 32.78% | -13.70% |
Volatility (6M)Calculated over the trailing 6-month period | 45.02% | 61.92% | -16.90% |
Volatility (1Y)Calculated over the trailing 1-year period | 73.54% | 84.45% | -10.91% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 60.78% | 69.63% | -8.85% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 94.73% | 78.14% | +16.59% |
Dividends
FTEK vs. ENPH - Dividend Comparison
Neither FTEK nor ENPH has paid dividends to shareholders.
Financials
FTEK vs. ENPH - Financials Comparison
This section allows you to compare key financial metrics between Fuel Tech, Inc. and Enphase Energy, 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
FTEK vs. ENPH - Profitability Comparison
FTEK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Fuel Tech, Inc. reported a gross profit of 2.64M and revenue of 6.08M. Therefore, the gross margin over that period was 43.5%.
ENPH - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Enphase Energy, Inc. reported a gross profit of 100.39M and revenue of 282.90M. Therefore, the gross margin over that period was 35.5%.
FTEK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Fuel Tech, Inc. reported an operating income of -1.60M and revenue of 6.08M, resulting in an operating margin of -26.3%.
ENPH - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Enphase Energy, Inc. reported an operating income of -29.64M and revenue of 282.90M, resulting in an operating margin of -10.5%.
FTEK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Fuel Tech, Inc. reported a net income of -1.36M and revenue of 6.08M, resulting in a net margin of -22.3%.
ENPH - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Enphase Energy, Inc. reported a net income of -20.31M and revenue of 282.90M, resulting in a net margin of -7.2%.
Frequently Asked Questions
FTEK and ENPH have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ENPH has higher volatility (32.78%) compared to FTEK (19.08%). In terms of maximum drawdown, FTEK dropped -98.97% vs ENPH's -95.97%.
ENPH currently has the higher Sharpe Ratio (0.89 vs -0.11), 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.
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