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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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Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009.

Jonah Whanau

2023-08-14 09:25:00 Monday ET

Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009.

Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009. Peter Isard (2005) &nbs

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Admitting China to the WTO seems ineffective in imparting economic freedom and democracy to the communist regime.

Dan Rochefort

2018-07-27 10:35:00 Friday ET

Admitting China to the WTO seems ineffective in imparting economic freedom and democracy to the communist regime.

Admitting China to the World Trade Organization (WTO) and other international activities seems ineffective in imparting economic freedom and democracy to th

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Trumpism may now become the new populist world order of economic governance.

Monica McNeil

2018-07-30 11:36:00 Monday ET

Trumpism may now become the new populist world order of economic governance.

Trumpism may now become the new populist world order of economic governance. Populist support contributes to Trump's 2016 presidential election victory

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U.S. federalism and domestic institutional arrangements

Olivia London

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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Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Becky Berkman

2020-08-05 08:33:00 Wednesday ET

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models. Peter Senge (2006) &nb

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President Trump criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

Charlene Vos

2018-08-29 10:37:00 Wednesday ET

President Trump criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

In an exclusive interview with Bloomberg, President Trump criticizes the World Trade Organization (WTO), proposes indexing capital gains taxes to inflation

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