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 11 July 2026

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Top money managers George Soros and Warren Buffett reveal their current stock and bond positions.

Dan Rochefort

2018-05-10 07:37:00 Thursday ET

Top money managers George Soros and Warren Buffett reveal their current stock and bond positions.

Top money managers George Soros and Warren Buffett reveal their current stock and bond positions in their recent corporate disclosures as of mid-2018. Georg

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Apple, Alphabet, Microsoft, Amazon, and Facebook have become the most valuable public companies in the world.

Olivia London

2017-05-13 07:28:00 Saturday ET

Apple, Alphabet, Microsoft, Amazon, and Facebook have become the most valuable public companies in the world.

America's Top 5 tech firms, Apple, Alphabet, Microsoft, Amazon, and Facebook have become the most valuable publicly listed companies in the world. These

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Saudi Aramco unveils the financial secrets of the most profitable corporation in the world.

Jacob Miramar

2019-04-13 14:28:00 Saturday ET

Saudi Aramco unveils the financial secrets of the most profitable corporation in the world.

Saudi Aramco unveils the financial secrets of the most profitable corporation in the world. In its recent public bond issuance prospectus, Aramco offers the

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MIT financial economist Simon Johnson rethinks capitalism with better key market incentives.

Daisy Harvey

2019-11-23 08:33:00 Saturday ET

MIT financial economist Simon Johnson rethinks capitalism with better key market incentives.

MIT financial economist Simon Johnson rethinks capitalism with better key market incentives. Johnson refers to the recent Business Roundtable CEO statement

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The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google.

Monica McNeil

2018-11-19 09:38:00 Monday ET

The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google.

The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google. President Trump indicates that the $5 billion fine against Googl

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Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal growth, success, virtue, happiness, and fulfillment in life, business, innovation, and entrepreneurship.

Jonah Whanau

2025-06-28 10:39:00 Saturday ET

Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal growth, success, virtue, happiness, and fulfillment in life, business, innovation, and entrepreneurship.

Former New York Times science author and Harvard psychologist Daniel Goleman explains why great mental focus serves as a vital mainstream driver of personal

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