TGEN vs. AAON
TGEN (Tecogen Inc) and AAON (AAON, Inc.) are both stocks. Both are in the Industrials sector — TGEN in Electrical Equipment & Parts, AAON in Building Products & Equipment. Over the past 10 years, TGEN returned -4.16%/yr vs 18.35%/yr for AAON. Their 0.10 correlation means their historical movements had little consistent relationship.
Performance
TGEN vs. AAON - Performance Comparison
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Returns By Period
In the year-to-date period, TGEN achieves a -32.79% return, which is significantly lower than AAON's 17.03% return. Over the past 10 years, TGEN has underperformed AAON with an annualized return of -4.16%, while AAON has yielded a comparatively higher 18.35% annualized return.
TGEN
- 1D
- 3.75%
- 1M
- -26.55%
- 6M
- -11.23%
- YTD
- -32.79%
- 1Y
- -63.83%
- 3Y*
- 40.00%
- 5Y*
- 10.12%
- 10Y*
- -4.16%
- ALL TIME*
- -4.68%
AAON
- 1D
- 1.68%
- 1M
- -17.25%
- 6M
- -2.00%
- YTD
- 17.03%
- 1Y
- 9.54%
- 3Y*
- 8.31%
- 5Y*
- 17.10%
- 10Y*
- 18.35%
- ALL TIME*
- 24.31%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
AAON AAON, Inc. | $115.29M | $114.47M | $146.58M |
TGEN Tecogen Inc | $919.99K | $1.01M | $2.08M |
TGEN vs. AAON - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TGEN Tecogen Inc | -32.79% | 237.20% | 80.86% | -35.20% | 4.17% | -1.64% | -42.45% | -41.60% | 34.44% | -35.71% |
AAON AAON, Inc. | 17.03% | -34.91% | 59.88% | 47.86% | -4.55% | 19.84% | 35.71% | 41.88% | -3.59% | 11.84% |
Correlation
The correlation between TGEN and AAON is 0.35, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.35 |
Correlation (3Y) Balances recent behavior with more history. | 0.24 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.18 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.12 |
Correlation (All Time) Calculated using the full available price history since May 20, 2014 | 0.11 |
Over the past year, TGEN and AAON have become more correlated (0.35) than their long-term average of 0.10, meaning their price movements have been converging.
Fundamentals
TGEN:
$99.33M
AAON:
$7.30B
TGEN:
-$0.34
AAON:
$1.42
TGEN:
3.64
AAON:
4.58
TGEN:
5.03
AAON:
7.93
TGEN:
$26.13M
AAON:
$1.62B
TGEN:
$9.19M
AAON:
$424.33M
TGEN:
-$7.95M
AAON:
$228.54M
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Return for Risk
TGEN vs. AAON — Risk / Return Rank
TGEN
AAON
TGEN vs. AAON - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Tecogen Inc (TGEN) and AAON, Inc. (AAON). 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.
| TGEN | AAON | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.70 | ||
| Sortino ratioReturn per unit of downside risk | -1.29 | ||
| Omega ratioGain probability vs. loss probability | 0.93 | 1.08 | -0.15 |
| Calmar ratioReturn relative to maximum drawdown | -0.79 | 0.17 | -0.96 |
| Martin ratioReturn relative to average drawdown | -1.22 | 0.46 | -1.68 |
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Drawdowns
TGEN vs. AAON - Drawdown Comparison
The maximum TGEN drawdown since its inception was -96.97%, which is greater than AAON's maximum drawdown of -76.03%. Use the drawdown chart below to compare losses from any high point for TGEN and AAON.
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Drawdown Indicators
| TGEN | AAON | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -96.97% | -76.03% | -20.94% |
Max Drawdown (1Y)Largest decline over 1 year | -83.43% | -42.71% | -40.72% |
Max Drawdown (3Y)Largest decline over 3 years | -83.43% | -48.86% | -34.57% |
Max Drawdown (5Y)Largest decline over 5 years | -83.43% | -48.86% | -34.57% |
Max Drawdown (10Y)Largest decline over 10 years | -87.50% | -48.86% | -38.64% |
Current DrawdownCurrent decline from peak | -84.04% | -39.88% | -44.16% |
Average DrawdownAverage peak-to-trough decline | -85.64% | -19.27% | -66.37% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 53.92% | 15.54% | +38.38% |
Volatility
TGEN vs. AAON - Volatility Comparison
Tecogen Inc (TGEN) has a higher volatility of 23.47% compared to AAON, Inc. (AAON) at 17.84%. This indicates that TGEN's price experiences larger fluctuations and is considered to be riskier than AAON based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TGEN | AAON | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 23.47% | 17.84% | +5.63% |
Volatility (6M)Calculated over the trailing 6-month period | 83.73% | 48.12% | +35.61% |
Volatility (1Y)Calculated over the trailing 1-year period | 112.41% | 63.78% | +48.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 102.05% | 46.63% | +55.42% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 86.42% | 40.96% | +45.46% |
Dividends
TGEN vs. AAON - Dividend Comparison
TGEN has not paid dividends to shareholders, while AAON's dividend yield for the trailing twelve months is around 0.45%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AAON AAON, Inc. | 0.45% | 0.52% | 0.27% | 0.43% | 0.57% | 0.48% | 0.57% | 0.65% | 0.91% | 0.71% | 0.73% | 0.95% |
TGEN Tecogen 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% |
Financials
TGEN vs. AAON - Financials Comparison
This section allows you to compare key financial metrics between Tecogen Inc and AAON, 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
TGEN vs. AAON - Profitability Comparison
TGEN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Tecogen Inc reported a gross profit of 2.59M and revenue of 6.34M. Therefore, the gross margin over that period was 40.9%.
AAON - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, AAON, Inc. reported a gross profit of 124.97M and revenue of 496.94M. Therefore, the gross margin over that period was 25.2%.
TGEN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Tecogen Inc reported an operating income of -2.14M and revenue of 6.34M, resulting in an operating margin of -33.7%.
AAON - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, AAON, Inc. reported an operating income of 57.06M and revenue of 496.94M, resulting in an operating margin of 11.5%.
TGEN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Tecogen Inc reported a net income of -2.12M and revenue of 6.34M, resulting in a net margin of -33.5%.
AAON - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, AAON, Inc. reported a net income of 39.82M and revenue of 496.94M, resulting in a net margin of 8.0%.
Frequently Asked Questions
TGEN and AAON have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TGEN has higher volatility (23.47%) compared to AAON (17.84%). In terms of maximum drawdown, TGEN dropped -96.97% vs AAON's -76.03%.
AAON currently has the higher Sharpe Ratio (0.11 vs -0.59), 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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