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 28 February 2026

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The global market for GLP-1 weight-loss medications can grow substantially to benefit more than 1 billion people worldwide by 2030.

Monica McNeil

2025-10-31 12:26:00 Friday ET

The global market for GLP-1 weight-loss medications can grow substantially to benefit more than 1 billion people worldwide by 2030.

With respect to wider weight loss treatment and obesity treatment, the global market for GLP-1 medications now grows substantially to benefit more than 1 bi

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Federal Reserve reduces the interest rate by another quarter point to the target range of 1.75%-2% in September 2019.

John Fourier

2019-10-07 12:35:00 Monday ET

Federal Reserve reduces the interest rate by another quarter point to the target range of 1.75%-2% in September 2019.

Federal Reserve reduces the interest rate by another key quarter point to the target range of 1.75%-2% in September 2019. In accordance with the Federal Res

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Chinese trade delegation offers to boost purchases of U.S. agricultural products to reach an interim trade deal with the Trump administration.

Peter Prince

2019-11-03 12:30:00 Sunday ET

Chinese trade delegation offers to boost purchases of U.S. agricultural products to reach an interim trade deal with the Trump administration.

Chinese trade delegation offers to boost purchases of U.S. agricultural products to reach an interim trade deal with the Trump administration. Chinese Vice

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Federal Reserve Chair Jerome Powell announces the monetary policy decision to lower the federal funds rate by a quarter point to 2%-2.25%.

Chanel Holden

2019-09-07 17:37:00 Saturday ET

Federal Reserve Chair Jerome Powell announces the monetary policy decision to lower the federal funds rate by a quarter point to 2%-2.25%.

Federal Reserve Chair Jerome Powell announces the monetary policy decision to lower the federal funds rate by a quarter point to 2%-2.25%. This interest rat

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The Sino-American trade war may slash global GDP by $600 billion.

Monica McNeil

2019-06-15 10:28:00 Saturday ET

The Sino-American trade war may slash global GDP by $600 billion.

The Sino-American trade war may slash global GDP by $600 billion. If the Trump administration imposes tariffs on all the Chinese imports and China retaliate

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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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