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....

+See More


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 10 October 2026

Blog+More

JPMorgan Chase CEO says President Trump has now awaken the animal spirits in U.S. stocks.

Dan Rochefort

2017-02-13 09:35:00 Monday ET

JPMorgan Chase CEO says President Trump has now awaken the animal spirits in U.S. stocks.

JPMorgan Chase CEO Jamie Dimon says President Trump has now awaken the *animal spirits* in the U.S. stock market. The key phrase, animal spirits, is the

+See More

Capital market liberalization and globalization connect global financial markets to allow an ocean of money to flow through them.

Becky Berkman

2018-06-17 10:35:00 Sunday ET

Capital market liberalization and globalization connect global financial markets to allow an ocean of money to flow through them.

In the past decades, capital market liberalization and globalization have combined to connect global financial markets to allow an ocean of money to flow th

+See More

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth.

Daphne Basel

2020-10-27 07:43:00 Tuesday ET

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth.

Most agile lean enterprises often choose to cut costs strategically to make their respective business models fit for growth. Vinay Couto, John Plansky,

+See More

The social media factor serves as a new measure of investor sentiment in addition to the fundamental factors.

Rose Prince

2017-05-07 06:39:00 Sunday ET

The social media factor serves as a new measure of investor sentiment in addition to the fundamental factors.

While the original five-factor asset pricing model arises from a quasi-lifetime of top empirical research by Nobel Laureate Eugene Fama and his long-time co

+See More

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

+See More

Elon Musk envisions a bold fantastic future with his professional trifecta of lean enterprises SolarCity, SpaceX, and Tesla.

Joseph Corr

2020-04-10 11:33:00 Friday ET

Elon Musk envisions a bold fantastic future with his professional trifecta of lean enterprises SolarCity, SpaceX, and Tesla.

Elon Musk envisions a bold fantastic future with his professional trifecta of lean startup enterprises SolarCity, SpaceX, and Tesla. Ashlee Vance (2015)

+See More