Tortoise Acquisition Corp. (NYSE:SHLL)

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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 1 August 2026

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AYA finbuzz podcast offers fresh insights into the latest stock market issues and economic trends for better and wiser investment decisions.

Daphne Basel

2019-07-31 11:34:00 Wednesday ET

AYA finbuzz podcast offers fresh insights into the latest stock market issues and economic trends for better and wiser investment decisions.

AYA Analytica finbuzz podcast channel on YouTube July 2019 In this podcast, we discuss several topical issues as of July 2019: (1) All 18 systemical

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The Trump administration postpones increasing 25% to 30% tariffs on $250 billion Chinese imports after China extends an olive branch to de-escalate Sino-American tariff tension.

Jacob Miramar

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

The Trump administration postpones increasing 25% to 30% tariffs on $250 billion Chinese imports after China extends an olive branch to de-escalate Sino-American tariff tension.

The Trump administration postpones increasing 25% to 30% tariffs on $250 billion Chinese imports after China extends an olive branch to de-escalate Sino-Ame

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Brent crude oil prices spike to $70-$75 per barrel after the Trump administration stops waiving economic sanctions on Iran.

Jacob Miramar

2019-05-13 12:38:00 Monday ET

Brent crude oil prices spike to $70-$75 per barrel after the Trump administration stops waiving economic sanctions on Iran.

Brent crude oil prices spike to $70-$75 per barrel after the Trump administration stops waiving economic sanctions on Iranian oil exports. U.S. State Secret

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Ramit Sethi suggests that it is important to invest in long-term gains instead of paying attention to daily dips and trends.

John Fourier

2018-10-30 10:41:00 Tuesday ET

Ramit Sethi suggests that it is important to invest in long-term gains instead of paying attention to daily dips and trends.

Personal finance author Ramit Sethi suggests that it is important to invest in long-term gains instead of paying attention to daily dips and trends. It

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The Trump administration imposes 10% tariffs on $200 billion Chinese imports.

James Campbell

2018-09-19 12:38:00 Wednesday ET

The Trump administration imposes 10% tariffs on $200 billion Chinese imports.

The Trump administration imposes 10% tariffs on $200 billion Chinese imports and expects to raise these tariffs to 25% additional duties toward the end of t

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Berkeley macro economist Brad DeLong sees no good reasons for an imminent economic recession with mass unemployment and even depression.

Laura Hermes

2019-11-21 11:34:00 Thursday ET

Berkeley macro economist Brad DeLong sees no good reasons for an imminent economic recession with mass unemployment and even depression.

Berkeley macro economist Brad DeLong sees no good reasons for an imminent economic recession with mass unemployment and even depression. The current U.S. ec

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