Compare Stocks: GEVO, GPRE, MNTK, and CLNE

Comparative Price Performance Over Time

Compare Price & Volume

Company	Current Price	50-Day Moving Average	52-Week Range	Market Cap	Beta	Avg. Volume	Today's Volume
CLNE Clean Energy Fuels	$1.56	$1.69	$1.54 ▼ $3.11	$343.56M	1.89	1.67 million shs	728,817 shs
GEVO Gevo	$1.31	$1.54	$1.30 ▼ $2.97	$323.88M	1.14	2.87 million shs	1.76 million shs
GPRE Green Plains	$15.23	$15.41	$8.93 ▼ $19.65	$1.07B	1.15	1.37 million shs	1.01 million shs
MNTK Montauk Renewables	$2.87	$2.12	$1.07 ▼ $3.05	$408.52M	0.66	759,597 shs	512,459 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
CLNE Clean Energy Fuels	0.00%	-2.50%	-5.45%	-26.76%	-42.86%
GEVO Gevo	0.00%	-6.43%	-20.12%	-8.39%	-38.79%
GPRE Green Plains	0.00%	+2.08%	-1.42%	-3.30%	+57.82%
MNTK Montauk Renewables	0.00%	-2.05%	+28.70%	+72.89%	+15.73%

Compare Price & Volume

Company	Current Price	50-Day Moving Average	52-Week Range	Market Cap	Beta	Avg. Volume	Today's Volume
CLNE Clean Energy Fuels	$1.56	$1.69	$1.54 ▼ $3.11	$343.56M	1.89	1.67 million shs	728,817 shs
GEVO Gevo	$1.31	$1.54	$1.30 ▼ $2.97	$323.88M	1.14	2.87 million shs	1.76 million shs
GPRE Green Plains	$15.23	$15.41	$8.93 ▼ $19.65	$1.07B	1.15	1.37 million shs	1.01 million shs
MNTK Montauk Renewables	$2.87	$2.12	$1.07 ▼ $3.05	$408.52M	0.66	759,597 shs	512,459 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
CLNE Clean Energy Fuels	0.00%	-2.50%	-5.45%	-26.76%	-42.86%
GEVO Gevo	0.00%	-6.43%	-20.12%	-8.39%	-38.79%
GPRE Green Plains	0.00%	+2.08%	-1.42%	-3.30%	+57.82%
MNTK Montauk Renewables	0.00%	-2.05%	+28.70%	+72.89%	+15.73%

Compare Analyst Forecasts

Company	Consensus Rating Score	Consensus Rating	Consensus Price Target	% Upside from Current Price
CLNE Clean Energy Fuels	2.25	Hold	$2.38	52.78% Upside
GEVO Gevo	2.17	Hold	$2.55	94.66% Upside
GPRE Green Plains	2.22	Hold	$15.43	1.30% Upside
MNTK Montauk Renewables	2.20	Hold	$1.80	-37.28% Downside

Current Analyst Ratings Breakdown

Latest GEVO, GPRE, MNTK, and CLNE Analyst Ratings

Date	Company	Brokerage	Action	Rating
10/2/2026	GEVO Gevo	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Sell (E+) ➝ Sell (D-)
9/29/2026	CLNE Clean Energy Fuels	Jefferies Financial Group Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Hold
9/29/2026	GEVO Gevo	Jefferies Financial Group Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Hold
9/24/2026	MNTK Montauk Renewables	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Sell (D) ➝ Sell (D+)
9/22/2026	CLNE Clean Energy Fuels	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Sell (E+) ➝ Sell (D-)
9/22/2026	GPRE Green Plains	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Sell (D-) ➝ Hold (C)
9/21/2026	GPRE Green Plains	Zacks Research Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Strong Sell ➝ Hold
9/16/2026	GEVO Gevo	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Downgrade	Sell (D-) ➝ Sell (E+)
9/4/2026	CLNE Clean Energy Fuels	Weiss Ratings Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Downgrade	Sell (D-) ➝ Sell (E+)
9/1/2026	MNTK Montauk Renewables	Zacks Research Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Upgrade	Hold ➝ Strong-Buy
8/25/2026	GPRE Green Plains	UBS Group Subscribe to MarketBeat All Access for the firm's recommendation accuracy rating	Reiterated Rating	Neutral

(Data available from 10/5/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Compare Sales & Book Value

Company	Annual Revenue	Price/Sales	Cashflow	Price/Cash	Book Value	Price/Book
CLNE Clean Energy Fuels	$424.83M	0.81	N/A	N/A	$2.58 per share	0.60
GEVO Gevo	$160.58M	2.02	N/A	N/A	$1.92 per share	0.68
GPRE Green Plains	$2.09B	0.51	$0.59 per share	25.87	$11.05 per share	1.38
MNTK Montauk Renewables	$176.38M	2.32	$0.23 per share	12.72	$1.85 per share	1.55

Compare Profitability & Earnings

Company	Net Income	EPS	Trailing P/E Ratio	Forward P/E Ratio	P/E Growth	Net Margins	Return on Equity (ROE)	Return on Assets (ROA)	Next Earnings Date
CLNE Clean Energy Fuels	-$222.02M	-$0.44	N/A	N/A	N/A	-21.27%	-16.52%	-8.87%	11/3/2026 (Estimated)
GEVO Gevo	-$33.84M	-$0.89	N/A	131.00	N/A	-119.93%	-6.50%	-4.22%	11/9/2026 (Estimated)
GPRE Green Plains	-$121.28M	$1.59	9.58	9.17	N/A	6.78%	14.52%	7.33%	11/4/2026 (Estimated)
MNTK Montauk Renewables	$1.75M	$0.06	47.84	16.88	N/A	3.40%	2.45%	1.47%	11/4/2026 (Estimated)

Latest GEVO, GPRE, MNTK, and CLNE Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue
8/6/2026	Q2 2026	CLNE Clean Energy Fuels	-$0.0107	-$0.01	+$0.0007	-$0.07	$111.27 million	$106.36 million
8/6/2026	Q2 2026	GEVO Gevo	-$0.0209	-$0.01	+$0.0109	-$0.75	$46.40 million	$46.50 million
8/6/2026	Q2 2026	GPRE Green Plains	$0.5410	$0.83	+$0.2890	$0.83	$542.38 million	$446.22 million

Compare Dividends

Company	Annual Payout	Dividend Yield	5-Year Annualized Dividend Growth	Payout Ratio	Years of Consecutive Growth
CLNE Clean Energy Fuels	N/A	N/A	N/A	N/A	N/A
GEVO Gevo	N/A	N/A	N/A	N/A	N/A
GPRE Green Plains	N/A	N/A	N/A	N/A	N/A
MNTK Montauk Renewables	N/A	N/A	N/A	N/A	N/A

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
CLNE Clean Energy Fuels	0.41	2.48	2.15
GEVO Gevo	0.61	2.70	2.19
GPRE Green Plains	0.45	1.99	1.58
MNTK Montauk Renewables	0.57	0.62	0.62

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
CLNE Clean Energy Fuels	49.94%
GEVO Gevo	35.17%
GPRE Green Plains	N/A
MNTK Montauk Renewables	16.35%

Insider Ownership

Company	Insider Ownership
CLNE Clean Energy Fuels	4.12%
GEVO Gevo	7.09%
GPRE Green Plains	1.40%
MNTK Montauk Renewables	54.30%

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
CLNE Clean Energy Fuels	503	220.23 million	211.15 million	Optionable
GEVO Gevo	151	247.24 million	229.71 million	Optionable
GPRE Green Plains	642	70.10 million	69.12 million	Optionable
MNTK Montauk Renewables	189	142.34 million	65.05 million	Optionable

GEVO, GPRE, MNTK, and CLNE Headlines

Recent News About These Companies

Montauk Renewables, Inc. (MNTK) Hits Fresh High: Is There Still Room to Run?

September 28, 2026 | zacks.com

Best Value Stocks to Buy for September 24th

September 24, 2026 | zacks.com

Montauk Renewables stock gains 39.5 percent this year

September 23, 2026 | ad-hoc-news.deA

Best Momentum Stocks to Buy for September 22nd

September 22, 2026 | zacks.com

Is Montauk Renewables (MNTK) Outperforming Other Oils-Energy Stocks This Year?

September 22, 2026 | zacks.com

Montauk Renewables, Inc. (NASDAQ:MNTK) Receives Consensus Recommendation of "Hold" from Analysts

September 21, 2026 | marketbeat.com

Top small-cap utilities stocks with the strongest momentum grades

September 18, 2026 | seekingalpha.com

3 Alternative-Energy Stocks That Could Withstand Fed's Rate Hike

September 18, 2026 | zacks.com

Montauk Renewables Opens North Carolina Facility

September 15, 2026 | marketscreener.comM

Montauk Renewables Celebrates Opening of Turkey, NC facility in Sampson County

September 15, 2026 | globenewswire.com

Montauk Renewables, Inc. (MNTK) Hit a 52 Week High, Can the Run Continue?

September 10, 2026 | zacks.com

BlackRock Inc. Acquires Shares of 4,709,893 Montauk Renewables, Inc. $MNTK

September 5, 2026 | marketbeat.com

Surging Earnings Estimates Signal Upside for Montauk Renewables (MNTK) Stock

September 3, 2026 | zacks.com

New Strong Buy Stocks for September 3rd

September 3, 2026 | zacks.com

Should Value Investors Buy Montauk Renewables (MNTK) Stock?

September 2, 2026 | zacks.com

Montauk Renewables (MNTK) Q2 2026 Earnings Call Transcript

August 12, 2026 | finance.yahoo.com

Montauk Renewables Inc (MNTK) (Q2 2026) Earnings Call Highlights: Revenue Surges 19. ...

August 7, 2026 | finance.yahoo.com

Montauk outlines full-year 2026 outlook with $175M-$190M RNG revenue as Turkey, North Carolina ramps

August 6, 2026 | seekingalpha.com

Montauk Renewables, Inc. (MNTK) Q2 2026 Earnings Call Transcript

August 6, 2026 | seekingalpha.com

Montauk Renewables (MNTK) Reports Break-Even Earnings for Q2

August 5, 2026 | zacks.com

Montauk Renewables Announces Second Quarter 2026 Results

August 5, 2026 | globenewswire.com

New MarketBeat Followers Over Time

Media Sentiment Over Time

GEVO, GPRE, MNTK, and CLNE Company Descriptions

Clean Energy Fuels NASDAQ:CLNE

$1.56 0.00 (0.00%)

Closing price 10/2/2026 04:00 PM Eastern

Extended Trading

$1.58 +0.02 (+1.28%)

As of 06:05 AM Eastern

Clean Energy Fuels Corp. provides natural gas as alternative fuels for vehicle fleets and related fueling solutions in the United States and Canada. It supplies renewable natural gas (RNG), compressed natural gas (CNG), and liquefied natural gas (LNG) for medium and heavy-duty vehicles; and offers operation and maintenance services for public and private vehicle fleet customer stations. The company also designs, builds, operates, and maintains vehicle fueling stations; and sells and services compressors and other equipment that are used in RNG production and fueling stations. In addition, it transports and sells CNG, RNG, and LNG through virtual natural gas pipelines and interconnects; sells U.S. federal, state, and local government credits, such as RNG as a vehicle fuel, including Renewable Identification Numbers and Low Carbon Fuel Standards credits; and obtains federal, state, and local credits, grants, and incentives. Further, the company focuses on developing, owning, and operating dairy and other livestock waste RNG projects. It serves heavy-duty trucking, airports, refuse, public transit, industrial, and institutional energy users, as well as government fleets. Clean Energy Fuels Corp. was incorporated in 2001 and is headquartered in Newport Beach, California.

Gevo NASDAQ:GEVO

$1.31 0.00 (0.00%)

Closing price 10/2/2026 04:00 PM Eastern

Extended Trading

$1.32 +0.01 (+1.15%)

As of 05:57 AM Eastern

Gevo, Inc. operates as a carbon abatement company. It operates through three segments: Gevo, Agri-Energy, and Renewable Natural Gas. The company focuses on transforming renewable energy into energy-dense liquid hydrocarbons that can be used as renewable fuels. It offers renewable gasoline and diesel, isobutanol, sustainable aviation fuel, renewable natural gas, isobutylene, ethanol, and animal feed and protein. The company was formerly known as Methanotech, Inc. and changed its name to Gevo, Inc. in March 2006. Gevo, Inc. was incorporated in 2005 and is headquartered in Englewood, Colorado.

Green Plains NASDAQ:GPRE

$15.23 0.00 (0.00%)

Closing price 10/2/2026 04:00 PM Eastern

Extended Trading

$15.15 -0.08 (-0.53%)

As of 06:32 AM Eastern

Green Plains Inc. produces low-carbon fuels in the United States and internationally. It operates through three segments: Ethanol Production, Agribusiness and Energy Services, and Partnership. The Ethanol Production segment produces ethanol, distillers grains, and ultra-high protein and renewable corn oil. The Agribusiness and Energy Services segment engages in the grain procurement, handling and storage, commodity marketing business; and trading of ethanol, distiller grains, renewable corn oil, grain, natural gas, and other commodities in various markets. This segment also provides grain drying and storage services to grain producers. The Partnership segment offers fuel storage and transportation services. It operates 24 ethanol storage facilities; two fuel terminal facilities; and a fleet of approximately 2,180 leased railcars. The company was formerly known as Green Plains Renewable Energy, Inc. and changed its name to Green Plains Inc. in May 2014. Green Plains Inc. was incorporated in 2004 and is headquartered in Omaha, Nebraska.

Montauk Renewables NASDAQ:MNTK

$2.87 0.00 (0.00%)

Closing price 10/2/2026 04:00 PM Eastern

Extended Trading

$2.96 +0.09 (+3.03%)

As of 06:42 AM Eastern

Montauk Renewables, Inc., a renewable energy company, engages in recovery and processing of biogas from landfills and other non-fossil fuel sources. It operates in two segments, Renewable Natural Gas and Renewable Electricity Generation. The company develops, owns, and operates renewable natural gas (RNG) projects that captures methane and prevents it from being released into the atmosphere by converting it into either RNG or electrical power for the electrical grid. Its customers for RNG and renewable identification numbers (RIN) include large, long-term owner-operators of landfills and livestock farms, local utilities, and large refiners in the natural gas and refining sectors. Montauk Renewables, Inc. was founded in 1980 and is headquartered in Pittsburgh, Pennsylvania.

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Compare Stocks

Comparative Price Performance Over Time

Compare Price & Volume

Compare Price Performance

Compare Price & Volume

Compare Price Performance

Compare Analyst Forecasts

Current Analyst Ratings Breakdown

Latest GEVO, GPRE, MNTK, and CLNE Analyst Ratings

Compare Sales & Book Value

Compare Profitability & Earnings

Latest GEVO, GPRE, MNTK, and CLNE Earnings

Compare Dividends

Compare Debt

Compare Ownership

Institutional Ownership

Insider Ownership

Compare Miscellaneous Stats

GEVO, GPRE, MNTK, and CLNE Headlines

Recent News About These Companies

New MarketBeat Followers Over Time

Media Sentiment Over Time

GEVO, GPRE, MNTK, and CLNE Company Descriptions

Clean Energy Fuels NASDAQ:CLNE

Gevo NASDAQ:GEVO

Green Plains NASDAQ:GPRE

Montauk Renewables NASDAQ:MNTK

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Compare Stocks

Comparative Price Performance Over Time

Compare Price & Volume

Compare Price Performance

Compare Price & Volume

Compare Price Performance

Compare Analyst Forecasts

Current Analyst Ratings Breakdown

Latest GEVO, GPRE, MNTK, and CLNE Analyst Ratings

Compare Sales & Book Value

Compare Profitability & Earnings

Latest GEVO, GPRE, MNTK, and CLNE Earnings

Compare Dividends

Compare Debt

Compare Ownership

Institutional Ownership

Insider Ownership

Compare Miscellaneous Stats

GEVO, GPRE, MNTK, and CLNE Headlines

Recent News About These Companies

New MarketBeat Followers Over Time

Media Sentiment Over Time

GEVO, GPRE, MNTK, and CLNE Company Descriptions

Clean Energy Fuels NASDAQ:CLNE

Gevo NASDAQ:GEVO

Green Plains NASDAQ:GPRE

Montauk Renewables NASDAQ:MNTK

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