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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 12 September 2026

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Volcker, Greenspan, Bernanke, and Yellen contribute to a Wall Street Journal op-ed on monetary policy independence.

Olivia London

2019-09-23 12:25:00 Monday ET

Volcker, Greenspan, Bernanke, and Yellen contribute to a Wall Street Journal op-ed on monetary policy independence.

Volcker, Greenspan, Bernanke, and Yellen contribute to a Wall Street Journal op-ed on monetary policy independence. These former Federal Reserve chiefs unit

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Ivanka Trump and Treasury Secretary Steven Mnuchin press the case for GOP tax legislation.

Jonah Whanau

2017-10-15 07:38:00 Sunday ET

Ivanka Trump and Treasury Secretary Steven Mnuchin press the case for GOP tax legislation.

Ivanka Trump and Treasury Secretary Steven Mnuchin both press the case for GOP tax legislation as economic relief for the middle-class without substantial t

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Treasury Secretary Steve Mnuchin indicates that the Trump team puts the trade war with China on hold.

Olivia London

2018-05-19 09:29:00 Saturday ET

Treasury Secretary Steve Mnuchin indicates that the Trump team puts the trade war with China on hold.

Treasury Secretary Steve Mnuchin indicates that the Trump team puts the trade war with China on hold. The interim suspension of U.S. tariffs should offer in

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Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism.

Fiona Sydney

2019-06-29 17:30:00 Saturday ET

Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism.

Nobel Laureate Joseph Stiglitz proposes the primary economic priorities in lieu of neoliberalism. Neoliberalism includes lower taxation, deregulation, socia

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President Trump delivers his second state-of-the-union address to U.S. Congress.

Olivia London

2019-02-06 10:36:49 Wednesday ET

President Trump delivers his second state-of-the-union address to U.S. Congress.

President Trump delivers his second state-of-the-union address to U.S. Congress. Several key themes emerge from this presidential address. First, President

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The Economist digs deep into the political economy of U.S. government shutdown over 3 days in January 2018.

Apple Boston

2018-01-13 08:39:00 Saturday ET

The Economist digs deep into the political economy of U.S. government shutdown over 3 days in January 2018.

The Economist digs deep into the political economy of U.S. government shutdown over 3 days in January 2018. In more than 4 years since 2014, U.S. government

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