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 August 2026

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Mike Pompeo switches his critical role from CIA Director to State Secretary in a secret visit to North Korea.

Peter Prince

2018-04-13 14:42:00 Friday ET

Mike Pompeo switches his critical role from CIA Director to State Secretary in a secret visit to North Korea.

Mike Pompeo switches his critical role from CIA Director to State Secretary in a secret visit to North Korea with no regime change as the North Korean dicta

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Amazon and Google face more intense antitrust scrutiny.

Apple Boston

2019-06-21 13:33:00 Friday ET

Amazon and Google face more intense antitrust scrutiny.

Amazon and Google face more intense antitrust scrutiny. In recent times, Justice Department and Federal Trade Commission have reached an internal agreement

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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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New computer algorithms and passive mutual fund managers now run the stock market.

Joseph Corr

2019-11-17 14:43:00 Sunday ET

New computer algorithms and passive mutual fund managers now run the stock market.

New computer algorithms and passive mutual fund managers run the stock market. Morningstar suggests that the total dollar amount of passive equity assets re

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European economic integration seems to have gone backwards primarily due to the recent Brexit movement.

Daisy Harvey

2019-10-19 16:35:00 Saturday ET

European economic integration seems to have gone backwards primarily due to the recent Brexit movement.

European economic integration seems to have gone backwards primarily due to the recent Brexit movement. Brexit, key European sovereign debt, and French and

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President Trump refreshes American fiscal fears and sovereign debt concerns through the One Big Beautiful Bill Act.

Jacob Miramar

2025-06-21 05:25:00 Saturday ET

President Trump refreshes American fiscal fears and sovereign debt concerns through the One Big Beautiful Bill Act.

President Trump refreshes American fiscal fears, worries, and concerns through the One Big Beautiful Bill Act. The Congressional Budget Office (CBO) estimat

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