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 22 November 2025

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Several recent events explain why Trump may undermine multilateral world order.

Joseph Corr

2018-06-03 07:35:00 Sunday ET

Several recent events explain why Trump may undermine multilateral world order.

Several recent events explain why Trump may undermine multilateral world order. First, Trump withdraws the U.S. from the 12-nation Trans-Pacific Partnership

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The new world order of trade helps accomplish non-economic policy goals such as national security and technological dominance.

Amy Hamilton

2024-01-31 14:33:00 Wednesday ET

The new world order of trade helps accomplish non-economic policy goals such as national security and technological dominance.

The new world order of trade helps accomplish non-economic policy goals such as national security and technological dominance. To the extent that freer

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Apple provides positive forward guidance on both revenue and profit forecasts for iPhones, iPads, and MacBooks.

James Campbell

2019-02-09 08:33:00 Saturday ET

Apple provides positive forward guidance on both revenue and profit forecasts for iPhones, iPads, and MacBooks.

Apple provides positive forward guidance on both revenue and profit forecasts for iPhones, iPads, and MacBooks. In the Christmas 2018 festive season, MacBoo

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Top money managers George Soros and Warren Buffett reveal their current stock and bond positions.

Dan Rochefort

2018-05-10 07:37:00 Thursday ET

Top money managers George Soros and Warren Buffett reveal their current stock and bond positions.

Top money managers George Soros and Warren Buffett reveal their current stock and bond positions in their recent corporate disclosures as of mid-2018. Georg

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Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the Trump tax law.

Charlene Vos

2018-01-02 12:39:00 Tuesday ET

Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the Trump tax law.

Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the new Trump tax law. This income hit reflects 10%-1

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Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China.

James Campbell

2019-01-09 07:33:00 Wednesday ET

Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China.

Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China. Apple CEO Tim Cook points out the fact that he

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