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 22 August 2026

Blog+More

Daniel Goleman explains why emotional intelligence is more important than high IQ for our success, virtue, and happiness in life.

Olivia London

2025-06-21 10:25:00 Saturday ET

Daniel Goleman explains why emotional intelligence is more important than high IQ for our success, virtue, and happiness in life.

Former New York Times science author and Harvard psychologist Daniel Goleman explains why emotional intelligence can serve as a more important critical succ

+See More

Netflix has an unsustainable business model in the meantime.

Becky Berkman

2019-05-02 13:30:00 Thursday ET

Netflix has an unsustainable business model in the meantime.

Netflix has an unsustainable business model in the meantime. Netflix maintains a small premium membership fee of $9-$14 per month for its unique collection

+See More

Treasury Secretary Steve Mnuchin has released a 147-page report on U.S. financial deregulation.

Peter Prince

2017-05-25 08:35:00 Thursday ET

Treasury Secretary Steve Mnuchin has released a 147-page report on U.S. financial deregulation.

Treasury Secretary Steve Mnuchin has released a 147-page report on financial deregulation under the Trump administration. This financial deregulation seeks

+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

Stock Synopsis: Video games continue to take both screen time and monetization from many other forms of entertainment.

Becky Berkman

2024-10-14 11:33:00 Monday ET

Stock Synopsis: Video games continue to take both screen time and monetization from many other forms of entertainment.

Stock Synopsis: Video games continue to take both screen time and monetization from many other forms of entertainment. We are broadly positive about the

+See More

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Becky Berkman

2020-08-05 08:33:00 Wednesday ET

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models.

Business leaders often think from a systemic perspective, share bold visions, build great teams, and learn new business models. Peter Senge (2006) &nb

+See More