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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 29 November 2025

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Net stock issuance theory and practice

Becky Berkman

2022-05-25 09:31:00 Wednesday ET

Net stock issuance theory and practice

Net stock issuance theory and practice Net equity issuance can be in the form of initial public offering (IPO) or seasoned equity offering (SEO). This l

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Value investment strategies make investors wiser like water with core fundamental factor analysis.

Jacob Miramar

2018-04-17 12:38:00 Tuesday ET

Value investment strategies make investors wiser like water with core fundamental factor analysis.

Value investment strategies make investors wiser like water with core fundamental factor analysis. Value investors tend to buy stocks below their intrinsic

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Macro economic innovations and asset alphas show significant mutual causation.

Olivia London

2023-12-03 11:33:00 Sunday ET

Macro economic innovations and asset alphas show significant mutual causation.

Macro innovations and asset alphas show significant mutual causation. April 2023   This brief article draws from the recent research publicati

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Chicago finance professor Raghuram Rajan suggests that free markets need populist support against an unholy alliance of private-sector and state elites.

John Fourier

2019-05-21 12:37:00 Tuesday ET

Chicago finance professor Raghuram Rajan suggests that free markets need populist support against an unholy alliance of private-sector and state elites.

Chicago finance professor Raghuram Rajan shows that free markets need populist support against an unholy alliance of private-sector and state elites. When a

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Personal finance author William Danko shares 3 top secrets for better wealth creation.

Rose Prince

2018-12-01 11:37:00 Saturday ET

Personal finance author William Danko shares 3 top secrets for better wealth creation.

As the solo author of the books Millionaire Next Door and Richer Than Millionaire, William Danko shares 3 top secrets for *better wealth creation*. True pro

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The Trump team now aims to make progress on health care, infrastructure, social welfare, and immigration.

Monica McNeil

2018-01-06 07:32:00 Saturday ET

The Trump team now aims to make progress on health care, infrastructure, social welfare, and immigration.

Subsequent to the Trump tax cuts for Christmas in December 2017, the one-year-old Trump presidency now aims to make progress on health care, infrastructure,

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