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 6 June 2026

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Eric Posner and Glen Weyl propose radical reforms to resolve key market design problems for better democracy and globalization.

Chanel Holden

2023-02-14 09:31:00 Tuesday ET

Eric Posner and Glen Weyl propose radical reforms to resolve key market design problems for better democracy and globalization.

Eric Posner and Glen Weyl propose radical reforms to resolve key market design problems for better democracy and globalization. Eric Posner and Glen Weyl

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Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc.

James Campbell

2018-10-25 10:36:00 Thursday ET

Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc.

Trump tariffs begin to bite U.S. corporate profits from Ford and Harley-Davidson to Caterpillar and Walmart etc. U.S. corporate profit growth remains high a

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Chinese President Xi JingPing calls President Trump to reach Sino-American trade conflict resolution.

Monica McNeil

2019-01-04 11:41:00 Friday ET

Chinese President Xi JingPing calls President Trump to reach Sino-American trade conflict resolution.

Chinese President Xi JingPing calls President Trump to reach Sino-American trade conflict resolution. Xi sends a congratulatory message to mark 40 years sin

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Credit supply growth drives business cycle fluctuations and often sows the seeds of their own subsequent destruction.

Fiona Sydney

2018-04-26 07:37:00 Thursday ET

Credit supply growth drives business cycle fluctuations and often sows the seeds of their own subsequent destruction.

Credit supply growth drives business cycle fluctuations and often sows the seeds of their own subsequent destruction. The global financial crisis from 2008

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Precautionary-motive and agency reasons for corporate cash management

Monica McNeil

2022-10-05 08:24:00 Wednesday ET

Precautionary-motive and agency reasons for corporate cash management

Precautionary-motive and agency reasons for corporate cash management Bates, Kahle, and Stulz (JF 2009) empirically find that public firms have doubled t

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Snap cannot keep up with the Kardashians because its stock loses $1 billion market value after Kylie Jenner tweets about her decision to leave Snapchat.

Monica McNeil

2018-02-19 08:39:00 Monday ET

Snap cannot keep up with the Kardashians because its stock loses $1 billion market value after Kylie Jenner tweets about her decision to leave Snapchat.

Snap cannot keep up with the Kardashians because its stock loses market value 7% or $1 billion after Kylie Jenner tweets about her decision to leave Snapcha

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