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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 19 September 2026

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AYA finbuzz podcast offers fresh insights into the latest stock market topics, economic trends, and personal finance inspirations as of December 2019.

Amy Hamilton

2019-12-30 11:28:00 Monday ET

AYA finbuzz podcast offers fresh insights into the latest stock market topics, economic trends, and personal finance inspirations as of December 2019.

AYA Analytica finbuzz podcast channel on YouTube December 2019 In this podcast, we discuss several topical issues as of December 2019: (1) The Trump adm

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Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg delves into how we can change our lives for the better by mastering our habits from day to day.

Monica McNeil

2025-06-05 00:00:00 Thursday ET

Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg delves into how we can change our lives for the better by mastering our habits from day to day.

Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg describes, discusses, and delves into how we can change our respective lives

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Warren Buffett shares his fresh economic insights and value investment strategies at the Berkshire Hathaway shareholder forum.

Daphne Basel

2018-05-05 07:33:00 Saturday ET

Warren Buffett shares his fresh economic insights and value investment strategies at the Berkshire Hathaway shareholder forum.

Warren Buffett shares his fresh economic insights and value investment strategies at the Berkshire Hathaway shareholder forum in May 2018 despite the new GA

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Thomas Piketty empirically shows that the top 1% cohort rakes in 20%+ of U.S. national income.

Daisy Harvey

2018-09-01 07:34:00 Saturday ET

Thomas Piketty empirically shows that the top 1% cohort rakes in 20%+ of U.S. national income.

As the French economist who studies global economic inequality in his recent book *Capital in the New Century*, Thomas Piketty co-authors with John Bates Cl

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Senator Elizabeth Warren introduces her Accountable Capitalism Act that would require corporations to consider stakeholder interests.

Fiona Sydney

2018-08-15 14:40:00 Wednesday ET

Senator Elizabeth Warren introduces her Accountable Capitalism Act that would require corporations to consider stakeholder interests.

Senator Elizabeth Warren advocates the alternative view that most U.S. trade deals serve corporate interests over workers, customers, and suppliers etc. She

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Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Peter Prince

2019-01-07 18:42:00 Monday ET

Neoliberal public choice continues to spin national taxation and several other forms of government intervention.

Neoliberal public choice continues to spin national taxation and several other forms of government intervention. The key post-crisis consensus focuses on go

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