Tortoise Acquisition Corp. (NYSE:SHLL)

Real-time price: | Most recent change:0.00%

Tortoise Acquisition Corp. is a blank check company. It aims to acquire one or more businesses and assets, via a merger, capital stock exchange, asset acquisition, stock purchase or reorganization. Tortoise Acquisition Corp. is based in New York, United States....

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Here we provide our AYA proprietary alpha stock signals for all premium members on our AYA fintech network platform. Specifically, a high Fama-French multi-factor dynamic conditional alpha suggests that the stock is likely to consistently outperform the broader stock market benchmarks such as S&P 500, Dow Jones, Nasdaq, Russell 3000, MSCI USA, and MSCI World etc. Since March 2023, our proprietary alpha stock signals retain U.S. Patent and Trademark Office (USPTO) fintech patent protection, approval, and accreditation for 20 years. Our homepage and blog articles provide more details on this proprietary alpha stock market investment model with robust long-term historical backtest evidence.

Sharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 13 September 2025

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U.S. Treasury's proposal for financial deregulation aims to remove key aspects of the Dodd-Frank Act.

Rose Prince

2017-08-25 13:36:00 Friday ET

U.S. Treasury's proposal for financial deregulation aims to remove key aspects of the Dodd-Frank Act.

The U.S. Treasury's June 2017 grand proposal for financial deregulation aims to remove several aspects of the Dodd-Frank Act 2010 such as annual macro s

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Sirius XM pays $3.5 billion shares to acquire the music app company Pandora.

Jonah Whanau

2018-09-25 10:35:00 Tuesday ET

Sirius XM pays $3.5 billion shares to acquire the music app company Pandora.

Sirius XM pays $3.5 billion shares to acquire the music app company Pandora. This acquisition would form the largest audio entertainment company worldwide.

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Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2025.

James Campbell

2025-02-02 11:28:00 Sunday ET

Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2025.

Our proprietary alpha investment model outperforms most stock market indexes from 2017 to 2025. Our proprietary alpha investment model outperforms the ma

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E.U. antitrust regulators impose a fine on Qualcomm for advancing its exclusive microchip deal with Apple.

Fiona Sydney

2018-01-17 05:30:00 Wednesday ET

E.U. antitrust regulators impose a fine on Qualcomm for advancing its exclusive microchip deal with Apple.

European Union antitrust regulators impose a fine on Qualcomm for advancing its key exclusive microchip deal with Apple to block out rivals such as Intel an

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Agile business firms beat the odds by building faster institutional reflexes to anticipate plausible economic scenarios.

Fiona Sydney

2020-09-03 10:26:00 Thursday ET

Agile business firms beat the odds by building faster institutional reflexes to anticipate plausible economic scenarios.

Agile business firms beat the odds by building faster institutional reflexes to anticipate plausible economic scenarios. Christopher Worley, Thomas Willi

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Trump administration imposes 20%-50% tariffs on Turkish imports due to a recent spat over the detention of an American pastor.

Apple Boston

2018-08-11 14:35:00 Saturday ET

Trump administration imposes 20%-50% tariffs on Turkish imports due to a recent spat over the detention of an American pastor.

The Trump administration imposes 20%-50% tariffs on Turkish imports due to a recent spat over the detention of an American pastor, Andrew Brunson, in Turkey

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