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

America expects to impose punitive tariffs on $7.5 billion European exports due to the recent WTO rule violation of illegal plane subsidies.

Apple Boston

2019-11-07 14:36:00 Thursday ET

America expects to impose punitive tariffs on $7.5 billion European exports due to the recent WTO rule violation of illegal plane subsidies.

America expects to impose punitive tariffs on $7.5 billion European exports due to the recent WTO rule violation of illegal plane subsidies. World Trade Org

+See More

Amazon CEO Jeff Bezos admits the fact that antitrust scrutiny remains a primary imminent threat to his e-commerce business empire.

John Fourier

2019-04-17 11:34:00 Wednesday ET

Amazon CEO Jeff Bezos admits the fact that antitrust scrutiny remains a primary imminent threat to his e-commerce business empire.

Amazon CEO Jeff Bezos admits the fact that antitrust scrutiny remains a primary imminent threat to his e-commerce business empire. In his annual letter to A

+See More

JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders.

Chanel Holden

2019-04-26 09:33:00 Friday ET

JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders.

JPMorgan Chase CEO Jamie Dimon defends capitalism in his recent annual letter to shareholders. As Dimon explains here, socialism inevitably produces stagnat

+See More

Global economic uncertainty now lurks in a thick layer of mystery.

Jonah Whanau

2019-03-01 13:36:00 Friday ET

Global economic uncertainty now lurks in a thick layer of mystery.

Global economic uncertainty now lurks in a thick layer of mystery. This uncertainty arises from Sino-U.S. trade tension, Brexit fallout, monetary policy nor

+See More

Global debt surges to $250 trillion in the fiscal year 2019.

Olivia London

2019-12-28 09:36:00 Saturday ET

Global debt surges to $250 trillion in the fiscal year 2019.

Global debt surges to $250 trillion in the fiscal year 2019. The International Institute of Finance analytic report shows that both China and the U.S. accou

+See More

Apple upstream suppliers such as Foxconn and Pegatron experience sharp share price declines during the Christmas 2017 holiday quarter.

Jacob Miramar

2018-11-21 11:36:00 Wednesday ET

Apple upstream suppliers such as Foxconn and Pegatron experience sharp share price declines during the Christmas 2017 holiday quarter.

Apple upstream suppliers from Foxconn and Pegatron to Radiance and Lumentum experience sharp share price declines during the Christmas 2017 holiday quarter.

+See More