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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 29 August 2026

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David Colander and Craig Freedman argue that economics went wrong when there was no neoclassical firewall between economic theories and policy reforms.

Becky Berkman

2023-11-28 11:35:00 Tuesday ET

David Colander and Craig Freedman argue that economics went wrong when there was no neoclassical firewall between economic theories and policy reforms.

David Colander and Craig Freedman argue that economics went wrong when there was no neoclassical firewall between economic theories and policy reforms. D

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President Trump imposes punitive tariffs on $60 billion Chinese imports in a brand-new trade war.

Laura Hermes

2018-03-25 08:39:00 Sunday ET

President Trump imposes punitive tariffs on $60 billion Chinese imports in a brand-new trade war.

President Trump imposes punitive tariffs on $60 billion Chinese imports in a brand-new trade war as China hits back with retaliatory tariffs on $3 billion U

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USPTO fintech patent protection and accreditation

Andy Yeh Alpha

2023-01-03 09:34:00 Tuesday ET

USPTO fintech patent protection and accreditation

  USPTO fintech patent protection and accreditation   As of early-January 2023, the U.S. Patent and Trademark Office (USPTO) has approved

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American state attorneys general begin bipartisan antitrust investigations into Apple, Amazon, Facebook, and Google.

Charlene Vos

2019-10-21 10:35:00 Monday ET

American state attorneys general begin bipartisan antitrust investigations into Apple, Amazon, Facebook, and Google.

American state attorneys general begin bipartisan antitrust investigations into the market power and corporate behavior of central tech titans such as Apple

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Net stock issuance theory and practice

Becky Berkman

2022-05-25 09:31:00 Wednesday ET

Net stock issuance theory and practice

Net stock issuance theory and practice Net equity issuance can be in the form of initial public offering (IPO) or seasoned equity offering (SEO). This l

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The new Brexit deal can boost British pound appreciation and macroeconomic optimism.

Fiona Sydney

2019-11-13 11:34:00 Wednesday ET

The new Brexit deal can boost British pound appreciation and macroeconomic optimism.

The new Brexit deal can boost British pound appreciation and economic optimism. British prime minister Boris Johnson wins the parliamentary vote on his new

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