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 13 June 2026

Blog+More

Financial institutions benefit from higher equity risk premiums and interest rate spreads.

Charlene Vos

2017-04-01 06:40:00 Saturday ET

Financial institutions benefit from higher equity risk premiums and interest rate spreads.

With the current interest rate hike, large banks and insurance companies are likely to benefit from higher equity risk premiums and interest rate spreads.

+See More

Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009.

Monica McNeil

2023-03-07 11:29:00 Tuesday ET

Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009.

Former Bank of England Governor Mervyn King provides his deep substantive analysis of the Global Financial Crisis of 2008-2009. Mervyn King (2017) &nb

+See More

The lean CEO encourages iterative continuous improvements and collaborative teams to innovate around core value streams.

Monica McNeil

2020-07-12 08:30:00 Sunday ET

The lean CEO encourages iterative continuous improvements and collaborative teams to innovate around core value streams.

The lean CEO encourages iterative continuous improvements and collaborative teams to innovate around core value streams. Jacob Stoller (2015)  

+See More

Federal Reserve normalizes the current interest rate hike to signal its own independence from the White House.

Apple Boston

2019-01-08 17:46:00 Tuesday ET

Federal Reserve normalizes the current interest rate hike to signal its own independence from the White House.

President Trump forces the Federal Reserve to normalize the current interest rate hike to signal its own monetary policy independence from the White House.

+See More

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance.

James Campbell

2019-05-17 15:24:00 Friday ET

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance.

A Harvard MBA graduate Camilo Maldonado shares several life lessons and wise insights into personal finance. People can leverage stock market investments an

+See More

Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the Trump tax law.

Charlene Vos

2018-01-02 12:39:00 Tuesday ET

Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the Trump tax law.

Goldman Sachs takes a $5 billion net income hit that results from its offshore cash repatriation under the new Trump tax law. This income hit reflects 10%-1

+See More