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 2 May 2026

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Sino-American trade talks make positive progress over 3 consecutive days.

Joseph Corr

2019-01-17 10:41:00 Thursday ET

Sino-American trade talks make positive progress over 3 consecutive days.

Sino-American trade talks make positive progress over 3 consecutive days as S&P 500 and global stock market indices post 3-day win streaks. Asian and Eu

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Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009.

Monica McNeil

2023-03-07 11:29:00 Tuesday ET

Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009.

Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009. Mervyn King (2017) &nb

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We assess non-bank financial institutions in the new world order of modern asset management.

Daisy Harvey

2028-01-31 11:29:00 Monday ET

We assess non-bank financial institutions in the new world order of modern asset management.

Today, the major passive index funds, private equity titans, hedge funds, and exchange funds etc combine to reshape Wall Street and several other global fin

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Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China.

James Campbell

2019-01-09 07:33:00 Wednesday ET

Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China.

Apple revises down its global sales revenue estimate to $83 billion due to subpar smartphone sales in China. Apple CEO Tim Cook points out the fact that he

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Ray Fair applies his macroeconometric model to study the central features of the U.S. macroeconomy such as price stability and full employment in the dual mandate.

Charlene Vos

2023-07-14 10:32:00 Friday ET

Ray Fair applies his macroeconometric model to study the central features of the U.S. macroeconomy such as price stability and full employment in the dual mandate.

Ray Fair applies his macroeconometric model to study the central features of the U.S. macroeconomy such as price stability and full employment in the dual m

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Carol Dweck describes, discusses, and delves into the scientific reasons why the growth mindset often helps motivate individuals, teams, and managers to accomplish more with greater grit, focus, and resilience.

Dan Rochefort

2025-05-21 04:27:10 Wednesday ET

Carol Dweck describes, discusses, and delves into the scientific reasons why the growth mindset often helps motivate individuals, teams, and managers to accomplish more with greater grit, focus, and resilience.

Carol Dweck describes, discusses, and delves into the scientific reasons why the growth mindset often helps motivate individuals, teams, and managers to acc

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