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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 29 August 2026

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Thomas Piketty empirically shows that the top 1% cohort rakes in 20%+ of U.S. national income.

Daisy Harvey

2018-09-01 07:34:00 Saturday ET

Thomas Piketty empirically shows that the top 1% cohort rakes in 20%+ of U.S. national income.

As the French economist who studies global economic inequality in his recent book *Capital in the New Century*, Thomas Piketty co-authors with John Bates Cl

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Addendum on empirical tests of multi-factor models for asset return prediction

Rose Prince

2022-03-05 09:27:00 Saturday ET

Addendum on empirical tests of multi-factor models for asset return prediction

Addendum on empirical tests of multi-factor models for asset return prediction Fama and French (2015) propose an empirical five-factor asset pricing mode

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Bill Gates shares with Mark Zuckerberg his prior personal experiences of testifying before Congress.

Peter Prince

2018-09-13 19:38:00 Thursday ET

Bill Gates shares with Mark Zuckerberg his prior personal experiences of testifying before Congress.

Bill Gates shares with Mark Zuckerberg his prior personal experiences of testifying on behalf of Microsoft before U.S. Congress. Both drop out of Harvard to

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CBS and its special committee of independent directors have decided to sue the Redstone controlling shareholders.

Daisy Harvey

2018-05-09 08:31:00 Wednesday ET

CBS and its special committee of independent directors have decided to sue the Redstone controlling shareholders.

CBS and its special committee of independent directors have decided to sue the Redstone controlling shareholders because these directors might have breached

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Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc.

James Campbell

2018-10-25 10:36:00 Thursday ET

Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc.

Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc. U.S. corporate profit growth remains high a

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Fed minutes reflect gradual interest rate normalization in response to high inflation risk.

Dan Rochefort

2018-02-15 07:43:00 Thursday ET

Fed minutes reflect gradual interest rate normalization in response to high inflation risk.

Fed minutes reflect gradual interest rate normalization in response to high inflation risk. FOMC members revise up the economic projections made at the Dece

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