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 14 February 2026

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Apple is now the world's biggest dividend payer with its $13 billion dividend payout.

Dan Rochefort

2017-04-19 17:37:00 Wednesday ET

Apple is now the world's biggest dividend payer with its $13 billion dividend payout.

Apple is now the world's biggest dividend payer with its $13 billion dividend payout and surpasses ExxonMobil's dividend payout record. Despite the

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Trump's presidential election victory caused an unpredictable *black swan* in almost every non-U.S. stock market in the world.

Fiona Sydney

2016-11-09 00:00:00 Wednesday ET

Trump's presidential election victory caused an unpredictable *black swan* in almost every non-U.S. stock market in the world.

Universally dismissed as a vanity presidential candidate when he entered a field crowded with Republican talent, the former Democrat and former Independent

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We can decipher valuable lessons from the annual letters to shareholders written by Amazon CEO Jeff Bezos.

Becky Berkman

2019-07-19 18:40:00 Friday ET

We can decipher valuable lessons from the annual letters to shareholders written by Amazon CEO Jeff Bezos.

We can decipher valuable lessons from the annual letters to shareholders written by Amazon CEO Jeff Bezos. Amazon is highly customer-centric because the wor

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AYA Analytica podcast provides fresh insights into the latest stock market issues, economic trends, and investment portfolio strategies.

Daphne Basel

2019-05-30 16:44:00 Thursday ET

AYA Analytica podcast provides fresh insights into the latest stock market issues, economic trends, and investment portfolio strategies.

AYA Analytica finbuzz podcast channel on YouTube May 2019 In this podcast, we discuss several topical issues as of May 2019: (1) Our proprietary alp

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Zuckerberg announces his major changes in Facebook's newsfeed algorithm and user authentication.

Becky Berkman

2018-01-07 09:33:00 Sunday ET

Zuckerberg announces his major changes in Facebook's newsfeed algorithm and user authentication.

Zuckerberg announces his major changes in Facebook's newsfeed algorithm and user authentication. Facebook now has to change the newsfeed filter to prior

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President Trump signs an executive order to freeze federal employee pay in early-2019.

Rose Prince

2019-01-06 08:39:00 Sunday ET

President Trump signs an executive order to freeze federal employee pay in early-2019.

President Trump signs an executive order to freeze federal employee pay in early-2019. Federal employees face furlough or work without pay due to the govern

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