Tecogen Inc. designs, manufactures, markets, and maintains industrial and commercial cogeneration systems for residential, commercial, recreational, and industrial use in the United States and internationally.
Tecogen stock last closed at $8.75, up 20.03% from the previous day, and has increased 880.94% in one year. It has overperformed other stocks in the Electrical Equipment & Parts industry by 8.59 percentage points. Tecogen stock is currently +986.96% from its 52-week low of $0.81, and -24.18% from its 52-week high of $11.54.
There are currently 29.69M TGEN shares outstanding. The market cap of TGEN is $259.79M. In the past 24 hours, 1.67M TGEN shares were traded.
How to Buy Tecogen Stock
Not sure how to invest in Tecogen stock? Here's how.
Decide where to buy Tecogen stock: You need to pick an online brokerage, but don't worry - we've researched dozens of online stock brokerages and apps to help you figure out where to buy Tecogen stock.
Create a brokerage account: Sign up for 0% fee trading with the highest-rated brokerage we've identified.
Put funds into your investment account: Pick your method of payment and add your info.
Evaluate Tecogen stock: The Tecogen ticker symbol is TGEN. Is Tecogen stock a good investment? Should you buy shares of TGEN? How do TGEN's underlying business fundamentals look? Do top analysts think Tecogen is a good buy? Why has TGEN's stock price moved recently? (Hint: Our stock market analysis website can help you decide if TGEN is a good stock to buy).
Make your TGEN purchase: Decide if you will purchase TGEN shares at the current market price or use a limit order to purchase TGEN shares at a particular price.
Get updates on your investment in TGEN: Create a watchlist to get live updates on your new investment in Tecogen shares.
Step 1: Decide where to buy Tecogen stock
You will need an online brokerage account in order to access the NYSEMKT market and buy TGEN shares.
A brokerage account enables you to buy and sell a number of investments, including stocks, bonds, mutual funds, and ETFs.
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Step 2: Create a brokerage account
Now that you've chosen the best brokerage, you need to fill out some personal details so you are able to buy TGEN stock today.
eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.
Step 4: Evaluate Tecogen stock
Once you have figured out the best place to buy Tecogen stock, it's critical to research their stock prior to investing, so you can wrap your head around the risk as well as the upside.
Tecogen Metrics
TGEN Price
$8.75
1w %
27.74%
1y %
880.94%
5y %
1,029.03%
P/E
-51.47x
P/B
28.55x
P/S
8.41x
PEG
N/A
Revenue
$26.28M
Earnings
-$4.24M
Fore. Rev. Growth
39.68%
Fore. Earn. Growth
N/A
Market Cap
$259.79M
Next Earnings
Nov 12, 2025
Next Dividend
N/A
Tecogen Fundamentals
WallStreetZen was built to help average investors perform better fundamental analysis quickly.
Last year, TGEN revenue was $26.28M. During the past five year, TGEN's revenue has increased by -4.33% per year. This was slower than the Electrical Equipment & Parts industry average of 18.32%.
No, Tecogen doesn't provide an income stream by paying out dividends.
TGEN Social Trading Data
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Step 5: Make your TGEN purchase
You have two primary options:
Market order: A market order is an order to buy or sell a security at the best available price. Market orders are generally the best for newer investors.
Limit order: A limit order enables you to buy or sell a security at a specific price (or better). If you want to make sure you're buying or selling at a given dollar amount limit, place a limit order.
Click the Open button and your broker will execute your order.
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As of Sep 19, 2025, it costs $8.75 to buy one share of Tecogen stock.
Remember, eToro's fractional share buying allows you to buy partial shares of stocks and ETFs. Even if you only have $4, you can buy 0.457 shares of TGEN.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.
Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.