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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 22 November 2025

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U.S. economic inequality increases to pre-Great-Depression levels.

Fiona Sydney

2019-02-17 14:40:00 Sunday ET

U.S. economic inequality increases to pre-Great-Depression levels.

U.S. economic inequality increases to pre-Great-Depression levels. U.C. Berkeley economics professor Gabriel Zucman empirically finds that the top 0.1% rich

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Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fundamental analysis of AT&T (U.S. stock symbol: $T).

Apple Boston

2025-10-05 17:31:00 Sunday ET

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fundamental analysis of AT&T (U.S. stock symbol: $T).

Stock Synopsis: With a new Python program, we use, adapt, apply, and leverage each of the mainstream Gemini Gen AI models to conduct this comprehensive fund

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The business legacy of Steve Jobs transforms smart mobile devices with Internet connectivity and digital content.

Becky Berkman

2020-03-19 13:39:00 Thursday ET

The business legacy of Steve Jobs transforms smart mobile devices with Internet connectivity and digital content.

The business legacy and sensitivity of Steve Jobs can transform smart mobile devices with Internet connectivity, music and video content curation, and digit

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Disruptive innovators compete against luck by figuring out why customers hire products and services to accomplish specific jobs.

John Fourier

2020-05-14 12:35:00 Thursday ET

Disruptive innovators compete against luck by figuring out why customers hire products and services to accomplish specific jobs.

Disruptive innovators can better compete against luck by figuring out why customers hire products and services to accomplish jobs. Clayton Christensen, T

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A brief biography of Andy Yeh

Andy Yeh Alpha

2020-11-22 11:30:00 Sunday ET

A brief biography of Andy Yeh

A brief biography of Andy Yeh Andy Yeh is responsible for ensuring maximum sustainable member growth within the Andy Yeh Alpha (AYA) fintech network pla

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Most sustainably successful business leaders make a mark in the world, create a positive impact, and challenge the status quo.

Peter Prince

2020-08-12 07:25:00 Wednesday ET

Most sustainably successful business leaders make a mark in the world, create a positive impact, and challenge the status quo.

Most sustainably successful business leaders make a mark in the world, create a positive impact, and challenge the status quo. Jerry Porras, Stewart Emer

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