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 22 August 2026

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Daniel Goleman explains why emotional intelligence is more important than high IQ for our success, virtue, and happiness in life.

Olivia London

2025-06-21 10:25:00 Saturday ET

Daniel Goleman explains why emotional intelligence is more important than high IQ for our success, virtue, and happiness in life.

Former New York Times science author and Harvard psychologist Daniel Goleman explains why emotional intelligence can serve as a more important critical succ

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We assess almost all aspects of the current global race toward artificial general intelligence (AGI) between both the U.S. and China.

Monica McNeil

2027-10-31 00:00:00 Sunday ET

We assess almost all aspects of the current global race toward artificial general intelligence (AGI) between both the U.S. and China.

In the technological race between the U.S. and China, America leads in some strategic sectors from AI large language models (LLM), graphics processing units

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Paulson, Geithner, and Bernanke warn that people seem to have forgotten the lessons of the global financial crisis from 2008 to 2009.

Daphne Basel

2018-07-17 08:35:00 Tuesday ET

Paulson, Geithner, and Bernanke warn that people seem to have forgotten the lessons of the global financial crisis from 2008 to 2009.

Henry Paulson and Timothy Geithner (former Treasury heads) and Ben Bernanke (former Fed chairman) warn that people seem to have forgotten the lessons of the

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U.S. regulatory agencies may consider broader economic issues in their antitrust probe into Amazon, Apple, Facebook, and Google.

Joseph Corr

2019-07-03 11:35:00 Wednesday ET

U.S. regulatory agencies may consider broader economic issues in their antitrust probe into Amazon, Apple, Facebook, and Google.

U.S. regulatory agencies may consider broader economic issues in their antitrust probe into tech titans such as Amazon, Apple, Facebook, and Google etc. Hou

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President Trump unveils his ambitious $1.5 trillion public infrastructure plan.

Daisy Harvey

2018-02-11 07:30:00 Sunday ET

President Trump unveils his ambitious $1.5 trillion public infrastructure plan.

President Trump unveils his ambitious $1.5 trillion public infrastructure plan. Trump proposes offering $100 billion in federal incentives to encourage stat

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Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon.

Joseph Corr

2018-05-03 07:34:00 Thursday ET

Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon.

Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon. This mega merger is worth $26.5 billion and involves an all

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