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 24 January 2026

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Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability and maximum employment.

Apple Boston

2023-08-07 12:29:00 Monday ET

Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability and maximum employment.

Oxford macro professor Stephen Nickell and his co-authors delve into the trade-off between inflation and unemployment in the dual mandate of price stability

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Uber seeks an IPO in close competition with its rideshare rival Lyft and other tech firms such as Slack, Pinterest, and Palantir.

Amy Hamilton

2019-03-13 12:35:00 Wednesday ET

Uber seeks an IPO in close competition with its rideshare rival Lyft and other tech firms such as Slack, Pinterest, and Palantir.

Uber seeks an IPO in close competition with its rideshare rival Lyft and other tech firms such as Slack, Pinterest, and Palantir. Uber expects to complete o

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Many billionaires choose to live below their means with frugal habits and lifestyles.

Chanel Holden

2019-12-04 14:35:00 Wednesday ET

Many billionaires choose to live below their means with frugal habits and lifestyles.

Many billionaires choose to live below their means with frugal habits and lifestyles. Those people who consistently commit to saving more, spending less, an

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Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon.

Joseph Corr

2018-05-03 07:34:00 Thursday ET

Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon.

Sprint and T-Mobile propose a major merger in order to better compete with AT&T and Verizon. This mega merger is worth $26.5 billion and involves an all

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Dr Kai-Fu Lee praises China as the next epicenter of artificial intelligence and smart data analysis.

Peter Prince

2017-12-01 06:30:00 Friday ET

Dr Kai-Fu Lee praises China as the next epicenter of artificial intelligence and smart data analysis.

Dr Kai-Fu Lee praises China as the next epicenter of artificial intelligence, smart data analysis, and robotic automation. With prior IT careers at Apple, M

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Corporate diversification theory and evidence

James Campbell

2022-04-05 17:39:00 Tuesday ET

Corporate diversification theory and evidence

Corporate diversification theory and evidence A recent strand of corporate diversification literature spans at least three generations. The first generat

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