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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 13 June 2026

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President Trump criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

Charlene Vos

2018-08-29 10:37:00 Wednesday ET

President Trump criticizes the WTO and proposes indexing capital gains taxes to inflation for U.S. investors.

In an exclusive interview with Bloomberg, President Trump criticizes the World Trade Organization (WTO), proposes indexing capital gains taxes to inflation

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The social media factor serves as a new measure of investor sentiment in addition to the fundamental factors.

Rose Prince

2017-05-07 06:39:00 Sunday ET

The social media factor serves as a new measure of investor sentiment in addition to the fundamental factors.

While the original five-factor asset pricing model arises from a quasi-lifetime of top empirical research by Nobel Laureate Eugene Fama and his long-time co

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President Trump sounds smart when he comes up with a fresh plan to retire $15 trillion national debt.

Peter Prince

2018-08-07 07:33:00 Tuesday ET

President Trump sounds smart when he comes up with a fresh plan to retire $15 trillion national debt.

President Trump sounds smart when he comes up with a fresh plan to retire $15 trillion national debt. This plan entails taxing American consumers and produc

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U.S. tech titans increasingly hire PhD economists to help solve business problems.

Monica McNeil

2019-03-19 12:35:00 Tuesday ET

U.S. tech titans increasingly hire PhD economists to help solve business problems.

U.S. tech titans increasingly hire PhD economists to help solve business problems. These key tech titans include Facebook, Amazon, Microsoft, Google, Apple,

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President Trump approves a phase one trade agreement with China.

Joseph Corr

2020-01-01 13:39:00 Wednesday ET

President Trump approves a phase one trade agreement with China.

President Trump approves a phase one trade agreement with China. This approval averts the introduction of new tariffs on Chinese imports. In return, China s

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Fed Chair Jerome Powell hints slower interest rate increases because the current rate is just below the neutral threshold.

Jacob Miramar

2018-12-07 11:35:00 Friday ET

Fed Chair Jerome Powell hints slower interest rate increases because the current rate is just below the neutral threshold.

Fed Chair Jerome Powell hints slower interest rate increases because the current rate is just below the neutral threshold. NYSE and NASDAQ share prices rebo

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