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....

+See More


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 20 June 2026

Blog+More

President Trump criticizes the potential media merger between AT&T and Time Warner.

Chanel Holden

2017-11-05 09:45:00 Sunday ET

President Trump criticizes the potential media merger between AT&T and Time Warner.

President Trump criticizes the potential media merger between AT&T and Time Warner, the latter of which owns the anti-Trump media network CNN. President

+See More

Management consultants can build sustainable trust-driven client relations through the accelerant curve of business value creation.

Monica McNeil

2020-11-17 08:27:00 Tuesday ET

Management consultants can build sustainable trust-driven client relations through the accelerant curve of business value creation.

Management consultants can build sustainable trust-driven client relations through the accelerant curve of business value creation. Alan Weiss (2016)

+See More

The Biden Inflation Reduction Act is central to modern world capitalism.

Andy Yeh Alpha

2023-02-28 11:30:00 Tuesday ET

The Biden Inflation Reduction Act is central to modern world capitalism.

The Biden Inflation Reduction Act is central to modern world capitalism. As of 2022-2023, global inflation has gradually declined from the peak of 9.8% d

+See More

CNBC news anchor Becky Quick interviews Warren Buffett in light of the recent stock market gyrations and movements.

Becky Berkman

2018-04-05 07:42:00 Thursday ET

CNBC news anchor Becky Quick interviews Warren Buffett in light of the recent stock market gyrations and movements.

CNBC news anchor Becky Quick interviews Berkshire Hathaway's Warren Buffett in light of the recent stock market gyrations and movements. Warren Buffett

+See More

House of Representatives considers a government expenditure bill with border wall finance and so sets up a shutdown stalemate with Senate.

Laura Hermes

2018-12-23 13:39:00 Sunday ET

House of Representatives considers a government expenditure bill with border wall finance and so sets up a shutdown stalemate with Senate.

The House of Representatives considers a government expenditure bill with border wall finance and therefore sets up a shutdown stalemate with Senate. As fre

+See More

America and China cannot decouple decades of long-term collaboration in trade, finance, and technology.

Becky Berkman

2019-12-16 11:37:00 Monday ET

America and China cannot decouple decades of long-term collaboration in trade, finance, and technology.

America and China cannot decouple decades of long-term collaboration in trade, finance, and technology. In recent times, some economists claim that China ma

+See More