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NYSE American · Electrical Equipment & Parts · USD

Tecogen Inc. (TGEN) Stock Analysis

Tecogen Inc. (TGEN) is a Electrical Equipment & Parts stock listed on NYSE American and quoted in US Dollar.

TGEN

$3.13

+$0.08 (+2.62%)

Sep 4, 2026 · Market close

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Price History

Hover for the daily close. The dotted line marks the period open.

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TGEN Key Statistics

As of Sep 4, 2026
Trading
Open
$3.05
Previous Close
$3.05
Day's Range
3.01–3.19
52-Week Range
1.94–12.07
Volume
157.90K
BetaHow much the share price moves relative to the wider market. 1.0 moves in line with it; above 1.0 swings more, below 1.0 less.
2.17
Valuation
Market Cap
$94.49M
P/E Ratio
unprofitable
Forward P/EShare price divided by forecast earnings for the year ahead, rather than the year just past.
20.87
P/S ratioMarket value divided by annual revenue. Useful for companies that are not yet profitable, where a P/E cannot be calculated.
3.84
EPS (ttm)Profit attributable to each share over the last twelve months.
−0.37
Financials (FY)
Revenue (FY)
$27.07M+19.69%
Net Income (FY)
−$8.25M
Profit marginThe share of revenue left as profit after all costs and taxes.
−42.28%
Shares OutstandingThe total number of shares held by all investors. Market value is this figure multiplied by the share price.
30.19M
1-Year Return
−55.35%
Dividend and dates
Earnings Date
November 12, 2026
Avg Volume
235.72K

Only metrics the company reports are shown. Data provided by Yahoo Finance via yfinance. Updated daily.

TGEN Stock Return by Calendar Year

Calendar-year returns computed from daily closing prices. Partial years are shown muted and marked with an asterisk.

YearReturn
2026 (partial year)−36.64%
2025+237.20%
2024+80.86%
2023−35.20%
2022+4.17%
2021−1.64%
2020−42.45%
2019−41.60%
2018+34.44%
2017−35.71%
2016 (partial year)−16.67%

As of September 4, 2026.

TGEN Revenue and Earnings by Fiscal Year

FY ends December
Fiscal yearRevenueNet incomeNet margin
2025$27.07M−$8.25M−30.5%
2024$22.62M−$4.76M−21.0%
2023$25.14M−$4.60M−18.3%
2022$25.00M−$2.45M−9.8%
Fiscal yearRevenueGross profitOperating incomeNet incomeNet margin
2025$27.07M$9.82M−$7.13M−$8.25M−30.5%
2024$22.62M$9.87M−$4.33M−$4.76M−21.0%
2023$25.14M$10.20M−$4.45M−$4.60M−18.3%
2022$25.00M$11.07M−$2.39M−$2.45M−9.8%

Annual figures as reported, in the company's reporting currency. As of December 31, 2025.

TGEN Valuation vs Electrical Equipment & Parts Median

Median of 55 stocks
MetricTGENElectrical Equipment & Parts medianvs median
P/S ratio3.841.9399% above
Profit margin−42.28%0.00%42.3 pts below

Medians across 55 Electrical Equipment & Parts stocks that report the metric. Medians, not averages, so one outlier cannot move them. As of September 4, 2026.

Recent News

News provided by third-party sources. Not financial advice.

Analysis

Data-derived

Company Overview

Tecogen Inc. (TGEN) is capitalised at $94.49M on the latest close. The company sits in the Industrials sector, in the Electrical Equipment & Parts industry. Headcount on file is 119.

The 52-week range on file runs from $1.94 to $12.07. The most recent close on file for TGEN is $3.13, dated September 4, 2026. That is +$0.08 (+2.62%) against the previous close. The latest close sits 61.34% above that 52-week low.

Financial Health

In fiscal 2025, Tecogen Inc. reported revenue of $27.07M. Against the prior fiscal year total of $22.62M, that is a change of +19.69%. The same year closed with a net loss of $8.25M. Profit margin runs at −42.28%. That is 42.3 percentage points below the Electrical Equipment & Parts median of 0%. Trailing earnings per share are −0.37.

Across the 4 fiscal years on file, revenue moves from $25.00M in 2022 to $27.07M in 2025. Of those 4 years, 0 report positive net income.

Valuation Assessment

No trailing P/E applies: the last reported earnings figure is negative. The forward P/E on file is 20.87. The price-to-sales ratio is 3.84. On price-to-sales that is 99.28% above the Electrical Equipment & Parts median of 1.93. The medians here are taken across 55 Electrical Equipment & Parts companies that report the metric.

The trailing one-year price return is −55.35%. Measured over 10 years, that is −3.06% a year compounded. Beta against the wider market is reported at 2.17. Daily returns over the trailing 10 years annualize to a volatility of 86.73%.

Growth & Income

The record shows no dividend for TGEN.

So far in 2026 the price is −36.64%. The strongest complete calendar year on file is 2025 at +237.20%; the weakest is 2020 at −42.45%. Of the 9 complete calendar years on file, 4 finished higher.

Peer Comparison

Tecogen Inc. (TGEN) operates in the Electrical Equipment & Parts industry. Here is how it compares to its closest peers by market capitalization:

Company Ticker Market Cap P/E Ratio
Tecogen Inc. TGEN $94.49M —
Vertiv Holdings Co VRT $108.00B 61.0
Bloom Energy Corporation BE $74.48B 304.7
nVent Electric plc NVT $25.25B 43.3

The Electrical Equipment & Parts industry average P/E ratio is 39.0x. Tecogen Inc. has no P/E ratio because it is not currently profitable.

Every figure above is read from this page's own data on each nightly rebuild. Informational only, not financial advice. As of September 4, 2026.

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About Tecogen Inc.

Tecogen Inc., together with its subsidiaries, designs, manufactures, markets, and maintains cogeneration products for multi-family residential, commercial, recreational, and industrial use in the United States. It operates in three segments: Products, Services, and Energy Production. The Products segment designs, manufactures, and sells industrial and commercial cogeneration systems to hospitals and nursing homes, schools and universities, health clubs and spas, hotels and motels, office and retail buildings, food and beverage processors, multi-unit residential buildings, laundries, ice rinks, swimming pools, factories, municipal buildings, indoor agriculture, military installations, and indoor growing facilities; and refrigeration compressors for cold storage, wineries, dairies, ice rinks, and food processing industries. Its Services segment provides operations and maintenance services; and parts sales, and installation services. The Energy Production segment installs, operates, and maintains distributed own generation electricity systems and sells the energy generated by such systems in the form of electricity, heat, hot water, and cooling to its customers under long-term energy sales agreements. The company also offers natural gas-powered cogeneration systems for water and space heating, and/or air conditioning. Its product portfolio includes InVerde e+ and TecoPower cogeneration units for the supply electricity and hot water; Tecochill, an air-conditioning and refrigeration chiller, and hybrid-drive air-cooled and gas engine-driven chiller to produce chilled water and hot water; Tecofrost, a gas engine-driven refrigeration compressor to circulate refrigerant and provide hot water as a byproduct; and Ultera, an emissions control technology. It sells its products through in-house marketing, as well as independent sales agents and representatives. Tecogen Inc. was incorporated in 2000 and is headquartered in North Billerica, Massachusetts.

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