Tecogen Inc (TGEN)

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

The chart shows the growth of an initial investment of $10,000 in Tecogen Inc, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.

Tecogen Inc (TGEN) has returned -48.18% so far this year and 14.80% over the past 12 months. Over the last ten years, TGEN has returned -3.80% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.

Based on dividend-adjusted daily data since May 20, 2014, TGEN's average daily return is +0.13%, while the average monthly return is +0.99%. At this rate, your investment would double in approximately 5.9 years.

Historically, 43% of months were positive and 57% were negative. The best month was May 2025 with a return of +91.9%, while the worst month was Mar 2020 at -53.5%. The longest winning streak lasted 6 consecutive months, and the longest losing streak was 7 months.

On a daily basis, TGEN closed higher 43% of trading days. The best single day was May 21, 2014 with a return of +132.3%, while the worst single day was May 23, 2014 at -35.4%.

Tecogen Inc has an annualized alpha of 30.14%, beta of 0.45, and R² of 0.01 versus S&P 500 Index. Calculated based on daily prices since May 21, 2014.

• This stock participated in 120.82% of S&P 500 Index downside but only 40.19% of its upside — more exposed to losses than it benefited from rallies.
• Beta of 0.45 may look defensive, but with R² of 0.01 this stock is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this stock's risk.
• R² of 0.01 means this stock moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

TGEN ranks 49 for risk / return — on par with similar stocks. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.

The table below present risk-adjusted performance metrics for Tecogen Inc (TGEN) and compare them to a chosen benchmark (S&P 500 Index).

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.

The table below displays the maximum drawdowns of the Tecogen Inc. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Tecogen Inc was 96.97%, occurring on Apr 19, 2024. The portfolio has not yet recovered.

The current Tecogen Inc drawdown is 87.69%.

The chart below shows the rolling one-month volatility.

The chart below illustrates the trends in the financial health of Tecogen Inc over time, highlighting three key metrics: Total Revenue, Earnings Before Interest and Taxes (EBIT), and Net Income.

The Valuation section provides an overview of how Tecogen Inc is priced in the market compared to other companies in the Electrical Equipment & Parts industry. It includes key financial ratios that help investors assess whether the stock is undervalued or overvalued.