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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
$0.01
-7.1%
$0.01
$0.00
$0.02
N/AN/A100,614 shs83,287 shs
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
$0.00
$0.01
$1.16
N/AN/A5.95 million shsN/A
ECTYQ
ECOtality
$0.00
$0.00
$0.03
N/AN/A21,545 shsN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
$8.48
+8.2%
$8.48
$7.74
$12.77
N/AN/A15,569 shs6,700 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
0.00%+3.79%-17.46%-32.47%-59.69%
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
0.00%0.00%0.00%0.00%0.00%
CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
N/AN/AN/AN/AN/AN/AN/AN/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/AN/AN/AN/AN/AN/AN/AN/A
ECTYQ
ECOtality
N/AN/AN/AN/AN/AN/AN/AN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/AN/AN/AN/AN/AN/AN/AN/A
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
0.00
N/AN/AN/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
0.00
N/AN/AN/A
ECTYQ
ECOtality
0.00
N/AN/AN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
0.00
N/AN/AN/A
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
$670KN/AN/AN/AN/AN/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/AN/AN/AN/AN/AN/A
ECTYQ
ECOtality
N/AN/AN/AN/AN/AN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/AN/AN/AN/AN/AN/A
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
N/AN/A0.00N/AN/AN/AN/AN/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/AN/A0.00N/AN/AN/AN/AN/AN/A
ECTYQ
ECOtality
N/AN/A0.00N/AN/AN/AN/AN/AN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/AN/A0.00N/AN/AN/AN/AN/A
CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
N/AN/AN/AN/AN/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/AN/AN/AN/AN/A
ECTYQ
ECOtality
N/AN/AN/AN/AN/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/AN/AN/AN/AN/A

Institutional Ownership

CompanyInstitutional Ownership
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
N/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/A
ECTYQ
ECOtality
N/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/A

Insider Ownership

CompanyInsider Ownership
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
N/A
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/A
ECTYQ
ECOtality
N/A
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
N/A
CompanyEmployeesShares OutstandingFree FloatOptionable
Advent Technologies Holdings, Inc. stock logo
ADNWW
Advent Technologies
200N/AN/ANot Optionable
A123 Systems, Inc. stock logo
AONEQ
A123 Systems
N/AN/AN/ANot Optionable
ECTYQ
ECOtality
N/AN/AN/ANot Optionable
ACON S2 Acquisition Corp. stock logo
STWOU
ACON S2 Acquisition
270N/AN/ANot Optionable

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Media Sentiment Over Time

Advent Technologies stock logo

Advent Technologies NASDAQ:ADNWW

$0.0052 0.00 (-7.14%)
Closing price 07/18/2025 03:44 PM Eastern
Extended Trading
$0.01 +0.00 (+2.50%)
As of 07/18/2025 06:41 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Advent Technologies Holdings, Inc., an advanced materials and technology development company, operates in the fuel cell and hydrogen technology markets in North America, Europe, and Asia. It develops, manufactures, and assembles fuel cell systems and critical components that determine the performance of hydrogen fuel cells and other energy systems. The company offers high-temperature proton exchange membrane (HT-PEM) fuel cells, including membrane electrode assemblies, bipolar plates, and reformers, as well as provides fuel-cell stack assembly and testing services. It serves stationary power, portable power, automotive, aviation, energy storage, and sensor markets. The company is headquartered in Boston, Massachusetts.

A123 Systems stock logo

A123 Systems OTCMKTS:AONEQ

B456 Systems, Inc., formerly A123 Systems, Inc. no longer has any operations. In June 2013, B456 Systems, Inc. went out of business as per its Chapter 11 liquidation filing under bankruptcy. B456 Systems, Inc. has completed the sale of substantially all of its assets to Wanxiang America Corporation and Navitas Systems LLC that was approved by the United States Bankruptcy Court for the District of Delaware. Previously, it was engaged in the design, development, manufacture, and sale of rechargeable lithium-ion batteries and energy storage systems worldwide.

ECOtality OTCMKTS:ECTYQ

Ecotality, Inc. (Ecotality) is a provider of electric vehicle (EV) charging and energy storage systems. The Company designs, manufactures, tests and commercializes these technologies. The Company has three lines of business: Blink, Minit-Charger and eTec Labs. Ecotality offers electric vehicle charging stations under the Blink brand and provides a turnkey network operating system. Minit-Charger manufactures and distributes fast-charging systems. eTec Labs is a research and testing resource for governments, automotive OEMs and utilities. The Company operates in four segments: Ecotality North America (ECONA), Innergy, Fuel Cell Store and International. ECONA is engaged in the research, development and testing of transportation and energy systems. Innergy provides power solutions. Fuel Cell Store is an online marketplace for fuel cell-related products and technologies. The International segment markets and distributes the Company's Blink and Minit-Charger equipment in Australia.

ACON S2 Acquisition stock logo

ACON S2 Acquisition OTCMKTS:STWOU

$8.48 +0.64 (+8.16%)
As of 10/8/2021

ACON S2 Acquisition Corp. does not have significant operations. It intends to effect a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization, or similar business combination with one or more businesses or entities. The company was incorporated in 2020 and is based in Washington, District of Columbia.