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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 15 August 2026

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Rampant stock market fears shake investor confidence during the recent Fed Chair transition from Yellen to Powell.

Charlene Vos

2018-02-03 07:42:00 Saturday ET

Rampant stock market fears shake investor confidence during the recent Fed Chair transition from Yellen to Powell.

Quant Quake 2.0 shakes investor confidence with rampant stock market fears and doubts during the recent Fed Chair transition from Janet Yellen to Jerome Pow

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Anti-competitive corporate practices may stifle U.S. innovation.

Fiona Sydney

2020-01-15 08:31:00 Wednesday ET

Anti-competitive corporate practices may stifle U.S. innovation.

Anti-competitive corporate practices may stifle U.S. innovation. In recent decades, wage growth, economic output, and productivity tend to stagnate as U.S.

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

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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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2023-12-10 09:23:00 Sunday ET

U.S. federalism and domestic institutional arrangements

U.S. federalism and domestic institutional arrangements A given country is federal when both of its national and sub-national governments exercise separa

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JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders.

Chanel Holden

2019-04-26 09:33:00 Friday ET

JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders.

JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders. As Dimon explains here, socialism inevitably produces stagnat

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Apple upstream semiconductor chipmaker TSMC boosts capital expenditures to $15 billion with almost 10% revenue growth by December 2019.

John Fourier

2019-11-11 09:36:00 Monday ET

Apple upstream semiconductor chipmaker TSMC boosts capital expenditures to $15 billion with almost 10% revenue growth by December 2019.

Apple upstream semiconductor chipmaker TSMC boosts capital expenditures to $15 billion with almost 10% revenue growth by December 2019. Due to high global d

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