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 25 July 2026

Blog+More

Google CEO Eric Schmidt and his co-authors show the innovative corporate culture and mission of the Internet search tech titan.

Daisy Harvey

2020-03-12 09:32:00 Thursday ET

Google CEO Eric Schmidt and his co-authors show the innovative corporate culture and mission of the Internet search tech titan.

Google CEO Eric Schmidt and his co-authors show the innovative corporate culture and mission of the Internet search tech titan. Eric Schmidt, Jonathan Ro

+See More

China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty.

Chanel Holden

2019-08-05 13:30:00 Monday ET

China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty.

China continues to sell U.S. Treasury bonds amid Sino-U.S. trade truce uncertainty. In mid-2019, China reduces its U.S. Treasury bond positions by $20.5 bil

+See More

President Trump meets the CEOs of tech titans such as Apple, Microsoft, Google, and Amazon.

John Fourier

2017-06-15 07:32:00 Thursday ET

President Trump meets the CEOs of tech titans such as Apple, Microsoft, Google, and Amazon.

President Donald Trump has discussed with the CEOs of large multinational corporations such as Apple, Microsoft, Google, and Amazon. This discussion include

+See More

AYA Analytica podcast provides fresh insights into the latest stock market news, economic trends, and investment portfolio strategies.

Amy Hamilton

2019-04-30 19:46:00 Tuesday ET

AYA Analytica podcast provides fresh insights into the latest stock market news, economic trends, and investment portfolio strategies.

AYA Analytica finbuzz podcast channel on YouTube April 2019 In this podcast, we discuss several topical issues as of April 2019: (1) Our proprietary

+See More

America and China play the game of chicken over trade and technology.

John Fourier

2018-05-01 11:38:00 Tuesday ET

America and China play the game of chicken over trade and technology.

America and China play the game of chicken over trade and technology, whereas, most market observers and economic media commentators hope the Trump team to

+See More

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

+See More