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 18 April 2026

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Ivanka Trump softens her father's brash and combative image with a social agenda toward female empowerment.

Fiona Sydney

2017-06-09 06:37:00 Friday ET

Ivanka Trump softens her father's brash and combative image with a social agenda toward female empowerment.

To complement President Trump's pro-business economic policies such as low taxation, new infrastructure, greater job creation, and technological in

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The recent Bristol-Myers Squibb acquisition of American Celgene is the $90 billion biggest biotech deal in history.

Jacob Miramar

2019-01-10 17:31:00 Thursday ET

The recent Bristol-Myers Squibb acquisition of American Celgene is the $90 billion biggest biotech deal in history.

The recent Bristol-Myers Squibb acquisition of American Celgene is the $90 billion biggest biotech deal in history. The resultant biopharma goliath would be

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What is our asset management strategy?

Andy Yeh Alpha

2026-02-28 10:29:00 Saturday ET

What is our asset management strategy?

AYA fintech network platform provides proprietary alpha stock signals and personal finance tools for stock market investors. As of March 2026, we have up

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Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members.

Laura Hermes

2020-06-17 09:23:00 Wednesday ET

Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members.

Successful founders focus on their continuous growth, passion, perseverance, and the collective wisdom of most team members. William Ferguson (2013) &

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U.S. trade envoy Robert Lighthizer proposes America to require regular touchpoints to ensure Sino-U.S. trade deal enforcement.

Daisy Harvey

2019-03-17 14:35:00 Sunday ET

U.S. trade envoy Robert Lighthizer proposes America to require regular touchpoints to ensure Sino-U.S. trade deal enforcement.

U.S. trade rep Robert Lighthizer proposes America to require regular touchpoints to ensure Sino-U.S. trade deal enforcement. America has to maintain the thr

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A congressional division between Democrats and Republicans can cause ripple effects on Trump economic reforms.

Becky Berkman

2018-11-29 11:33:00 Thursday ET

A congressional division between Democrats and Republicans can cause ripple effects on Trump economic reforms.

A congressional division between Democrats and Republicans can cause ripple effects on Trump economic reforms. As Democrats have successfully flipped the Ho

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