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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 17 October 2026

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Facebook, Google, and Twitter attend a U.S. House testimony on whether these tech titans filter web content for political reasons.

Amy Hamilton

2018-07-15 11:35:00 Sunday ET

Facebook, Google, and Twitter attend a U.S. House testimony on whether these tech titans filter web content for political reasons.

Facebook, Google, and Twitter attend a U.S. House testimony on whether these social media titans filter web content for political reasons. These network pla

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The Economist Intelligence Unit (EIU) continues to track major business risks in light of volatile stock markets.

Fiona Sydney

2019-01-11 10:33:00 Friday ET

The Economist Intelligence Unit (EIU) continues to track major business risks in light of volatile stock markets.

The Economist Intelligence Unit (EIU) continues to track major business risks in light of volatile stock markets, elections, and geopolitics. EIU monitors g

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Warren Buffett approves Berkshire Hathaway to implement new meaningful stock repurchases.

Dan Rochefort

2018-11-15 12:35:00 Thursday ET

Warren Buffett approves Berkshire Hathaway to implement new meaningful stock repurchases.

Warren Buffett approves Berkshire Hathaway to implement new meaningful stock repurchases. Buffett sends a positive signal to the stock market with the Berks

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The financial crisis of 2008-2009 affects many millennials as they bear the primary costs of college tuition, residential demand, health care, and childcare.

Peter Prince

2019-06-23 08:30:00 Sunday ET

The financial crisis of 2008-2009 affects many millennials as they bear the primary costs of college tuition, residential demand, health care, and childcare.

The financial crisis of 2008-2009 affects many millennials as they bear the primary costs of college tuition, residential demand, health care, and childcare

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The Federal Reserve proposes softening the Volcker rule that prevents banks from placing risky bets on securities with deposit finance.

James Campbell

2018-05-27 08:33:00 Sunday ET

The Federal Reserve proposes softening the Volcker rule that prevents banks from placing risky bets on securities with deposit finance.

The Federal Reserve proposes softening the Volcker rule that prevents banks from placing risky bets on securities with deposit finance. As part of the po

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Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009.

Jonah Whanau

2023-08-14 09:25:00 Monday ET

Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009.

Peter Isard analyzes the proper economic policy reforms and root causes of global financial crises of the 1990s and 2008-2009. Peter Isard (2005) &nbs

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