FIX vs. DUOL
FIX (Comfort Systems USA, Inc.) and DUOL (Duolingo, Inc.) are both stocks. FIX operates in Engineering & Construction (Industrials), while DUOL operates in Software - Application (Technology). Over the past 3 years, FIX returned 128.82%/yr vs -8.39%/yr for DUOL. At a 0.26 correlation, their price movements are largely independent.
Performance
FIX vs. DUOL - Performance Comparison
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Returns By Period
In the year-to-date period, FIX achieves a 101.37% return, which is significantly higher than DUOL's -30.13% return.
FIX
- 1D
- 1.85%
- 1M
- -5.78%
- YTD
- 101.37%
- 6M
- 94.15%
- 1Y
- 281.93%
- 3Y*
- 128.82%
- 5Y*
- 86.97%
- 10Y*
- 51.27%
DUOL
- 1D
- -0.98%
- 1M
- 9.43%
- YTD
- -30.13%
- 6M
- -37.52%
- 1Y
- -74.37%
- 3Y*
- -8.39%
- 5Y*
- —
- 10Y*
- —
FIX vs. DUOL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
FIX Comfort Systems USA, Inc. | 101.37% | 120.86% | 106.89% | 79.62% | 16.98% | 33.42% |
DUOL Duolingo, Inc. | -30.13% | -45.87% | 42.93% | 218.92% | -32.97% | -24.96% |
Correlation
The correlation between FIX and DUOL is 0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.06 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.28 |
Correlation (All Time) Calculated using the full available price history since Jul 28, 2021 | 0.26 |
The correlation between FIX and DUOL shifts across timeframes, from 0.06 (1 year) to 0.28 (3 years), reflecting how their relationship changes across market environments.
Fundamentals
FIX:
$34.64
DUOL:
$11.67
FIX:
54.21
DUOL:
10.51
FIX:
0.82
DUOL:
0.03
FIX:
6.54
DUOL:
4.04
FIX:
$10.14B
DUOL:
$1.10B
FIX:
$2.55B
DUOL:
$798.46M
FIX:
$1.70B
DUOL:
$167.30M
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Return for Risk
FIX vs. DUOL — Risk / Return Rank
FIX
DUOL
FIX vs. DUOL - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Comfort Systems USA, Inc. (FIX) and Duolingo, Inc. (DUOL). 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.
| FIX | DUOL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +6.32 | ||
| Sortino ratioReturn per unit of downside risk | +7.24 | ||
| Omega ratioGain probability vs. loss probability | 1.66 | 0.72 | +0.94 |
| Calmar ratioReturn relative to maximum drawdown | 17.58 | -0.92 | +18.50 |
| Martin ratioReturn relative to average drawdown | 59.47 | -1.26 | +60.73 |
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Drawdowns
FIX vs. DUOL - Drawdown Comparison
The maximum FIX drawdown since its inception was -93.36%, which is greater than DUOL's maximum drawdown of -83.35%. Use the drawdown chart below to compare losses from any high point for FIX and DUOL.
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Drawdown Indicators
| FIX | DUOL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -93.36% | -83.35% | -10.01% |
Max Drawdown (1Y)Largest decline over 1 year | -15.78% | -81.19% | +65.41% |
Max Drawdown (3Y)Largest decline over 3 years | -46.05% | -83.35% | +37.30% |
Max Drawdown (5Y)Largest decline over 5 years | -46.05% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -49.68% | — | — |
Current DrawdownCurrent decline from peak | -8.03% | -77.32% | +69.29% |
Average DrawdownAverage peak-to-trough decline | -38.06% | -35.76% | -2.30% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.66% | 59.48% | -54.82% |
Volatility
FIX vs. DUOL - Volatility Comparison
Comfort Systems USA, Inc. (FIX) and Duolingo, Inc. (DUOL) have volatilities of 15.34% and 15.67%, 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.
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Volatility by Period
| FIX | DUOL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.34% | 15.67% | -0.33% |
Volatility (6M)Calculated over the trailing 6-month period | 38.30% | 40.94% | -2.64% |
Volatility (1Y)Calculated over the trailing 1-year period | 54.05% | 62.97% | -8.92% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 44.66% | 66.21% | -21.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 42.44% | 66.21% | -23.77% |
Dividends
FIX vs. DUOL - Dividend Comparison
FIX's dividend yield for the trailing twelve months is around 0.14%, while DUOL has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DUOL Duolingo, 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% |
FIX Comfort Systems USA, Inc. | 0.14% | 0.21% | 0.28% | 0.41% | 0.49% | 0.49% | 0.81% | 0.79% | 0.76% | 0.68% | 0.83% | 0.88% |
Financials
FIX vs. DUOL - Financials Comparison
This section allows you to compare key financial metrics between Comfort Systems USA, Inc. and Duolingo, 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
FIX vs. DUOL - Profitability Comparison
FIX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a gross profit of 754.41M and revenue of 2.87B. Therefore, the gross margin over that period was 26.3%.
DUOL - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Duolingo, Inc. reported a gross profit of 213.10M and revenue of 291.97M. Therefore, the gross margin over that period was 73.0%.
FIX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported an operating income of 485.72M and revenue of 2.87B, resulting in an operating margin of 17.0%.
DUOL - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Duolingo, Inc. reported an operating income of 44.53M and revenue of 291.97M, resulting in an operating margin of 15.3%.
FIX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a net income of 370.38M and revenue of 2.87B, resulting in a net margin of 12.9%.
DUOL - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Duolingo, Inc. reported a net income of 43.46M and revenue of 291.97M, resulting in a net margin of 14.9%.
Frequently Asked Questions
FIX and DUOL have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
DUOL has higher volatility (15.67%) compared to FIX (15.34%). In terms of maximum drawdown, FIX dropped -93.36% vs DUOL's -83.35%.
FIX currently has the higher Sharpe Ratio (5.13 vs -1.19), 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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