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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 1 August 2026

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President Trump refreshes American fiscal fears and sovereign debt concerns through the One Big Beautiful Bill Act.

Jacob Miramar

2025-06-21 05:25:00 Saturday ET

President Trump refreshes American fiscal fears and sovereign debt concerns through the One Big Beautiful Bill Act.

President Trump refreshes American fiscal fears, worries, and concerns through the One Big Beautiful Bill Act. The Congressional Budget Office (CBO) estimat

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The Economist delves into the modern perils of tech titans such as Apple, Amazon, Facebook, and Google.

Jacob Miramar

2018-01-12 07:37:00 Friday ET

The Economist delves into the modern perils of tech titans such as Apple, Amazon, Facebook, and Google.

The Economist delves into the modern perils of tech titans such as Apple, Amazon, Facebook, and Google. These key tech titans often receive plaudits for mak

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President Trump praises great unity and progress at the G7 summit.

Rose Prince

2019-09-21 09:25:00 Saturday ET

President Trump praises great unity and progress at the G7 summit.

President Trump praises great unity and progress at the G7 summit with respect to Sino-U.S. trade conflict resolution, global climate change, containment fo

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Income and wealth concentration follows the ebbs and flows of the business cycle in America.

Amy Hamilton

2019-04-23 19:45:00 Tuesday ET

Income and wealth concentration follows the ebbs and flows of the business cycle in America.

Income and wealth concentration follows the ebbs and flows of the business cycle in America. Economic inequality not only grows among people, but it also gr

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Top 4 U.S. richest people are self-made billionaires: Gates, Buffet, Bloomberg, and Zuckerberg.

Dan Rochefort

2017-08-01 09:40:00 Tuesday ET

Top 4 U.S. richest people are self-made billionaires: Gates, Buffet, Bloomberg, and Zuckerberg.

In American states, all of the Top 4 richest people are self-made billionaires: Bill Gates in Washington, Warren Buffett in Nebraska, Michael Bloomberg in N

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Former White House chief economic advisor Gary Cohn points out that there is no instant cure for the Sino-U.S. trade dilemma.

Rose Prince

2018-11-23 09:39:00 Friday ET

Former White House chief economic advisor Gary Cohn points out that there is no instant cure for the Sino-U.S. trade dilemma.

Former White House chief economic advisor Gary Cohn points out that there is no instant cure for the Sino-U.S. trade dilemma. After the U.S. midterm electio

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