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 November 2025

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Many U.S. large public corporations spend their tax cuts on new dividend payout and share buyback.

Jacob Miramar

2018-05-23 09:41:00 Wednesday ET

Many U.S. large public corporations spend their tax cuts on new dividend payout and share buyback.

Many U.S. large public corporations spend their tax cuts on new dividend payout and share buyback but not on new job creation and R&D innovation. These

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China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty.

Chanel Holden

2019-08-05 13:30:00 Monday ET

China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty.

China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty. In mid-2019, China reduces its U.S. Treasury bond positions by $20.5 bil

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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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The new Fed chairman Jerome Powell faces a new challenge in the form of core CPI rate hikes toward 1.8%-2.1%.

Laura Hermes

2018-02-07 06:38:00 Wednesday ET

The new Fed chairman Jerome Powell faces a new challenge in the form of core CPI rate hikes toward 1.8%-2.1%.

The new Fed chairman Jerome Powell faces a new challenge in the form of both core CPI and CPI inflation rate hikes toward 1.8%-2.1% year-over-year with stro

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Corporate strategies, portfolio choices, and management memes add value and drive business process improvements over time.

Jacob Miramar

2020-08-19 10:32:00 Wednesday ET

Corporate strategies, portfolio choices, and management memes add value and drive business process improvements over time.

Corporate strategies, portfolio choices, and management memes add value and drive business process improvements over time. Andrew Campbell, Jo Whitehead,

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Tony Robbins summarizes several personal finance and investment lessons for the typical layperson.

Charlene Vos

2017-12-21 12:45:00 Thursday ET

Tony Robbins summarizes several personal finance and investment lessons for the typical layperson.

Tony Robbins summarizes several personal finance and investment lessons for the typical layperson: We cannot beat the stock market very often, so it w

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