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 7 February 2026

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The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google.

Monica McNeil

2018-11-19 09:38:00 Monday ET

The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google.

The Trump administration mulls over antitrust actions against Amazon, Facebook, and Google. President Trump indicates that the $5 billion fine against Googl

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Capital gravitates toward key profitable mutual funds until the marginal asset return equilibrates near the core stock market benchmark.

Peter Prince

2019-07-27 17:37:00 Saturday ET

Capital gravitates toward key profitable mutual funds until the marginal asset return equilibrates near the core stock market benchmark.

Capital gravitates toward key profitable mutual funds until the marginal asset return equilibrates near the core stock market benchmark. As Stanford finance

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Higher public debt levels, interest rate hikes, and subpar Chinese economic growth rates are the major risks to the world economy.

Daphne Basel

2019-01-23 11:32:00 Wednesday ET

Higher public debt levels, interest rate hikes, and subpar Chinese economic growth rates are the major risks to the world economy.

Higher public debt levels, global interest rate hikes, and subpar Chinese economic growth rates are the major risks to the world economy from 2019 to 2020.

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Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg delves into how we can change our lives for the better by mastering our habits from day to day.

Monica McNeil

2025-06-05 00:00:00 Thursday ET

Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg delves into how we can change our lives for the better by mastering our habits from day to day.

Former New York Times team journalist and Pulitzer Prize winner Charles Duhigg describes, discusses, and delves into how we can change our respective lives

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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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Federal Reserve publishes its inaugural flagship financial stability report.

Peter Prince

2018-12-05 09:38:00 Wednesday ET

Federal Reserve publishes its inaugural flagship financial stability report.

Federal Reserve publishes its inaugural flagship financial stability report. Fed Chair Jerome Powell applauds both low inflation (2%) and low unemployment (

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