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Plantronics Inc. Common Stock (NYSE:POLY)

Real-time price： | Most recent change：0.00%

Plantronics is a global leader in audio communications for businesses and consumers. They have pioneered new trends in audio technology for 50 years, creating innovative products that allow people to simply communicate. From unified communication solutions to Bluetooth' headsets, they deliver uncompromising quality, an ideal experience, and extraordinary service. Plantronics is used by every company in the Fortune 100, as well as 911 dispatch, air traffic control and the New York Stock Exchange....

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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 24 January 2026

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President Trump considers imposing retaliatory economic sanctions on Chinese products.

Peter Prince

2018-01-10 08:40:00 Wednesday ET

President Trump considers imposing retaliatory economic sanctions on Chinese products.

President Trump considers imposing retaliatory economic sanctions on Chinese products and services in direct response to China's theft and infringement

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President Trump blames the Federal Reserve for its *crazy tight* interest rate hike.

Becky Berkman

2018-10-13 10:44:00 Saturday ET

President Trump blames the Federal Reserve for its *crazy tight* interest rate hike.

Dow Jones tumbles 3% or 831 points while NASDAQ tanks 4%, and this negative investor sentiment rips through most European and Asian stock markets in early-O

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American China-specialists champion the key notion of *strategic engagement* with the Xi administration.

James Campbell

2018-12-11 10:34:06 Tuesday ET

American China-specialists champion the key notion of *strategic engagement* with the Xi administration.

Several eminent American China-specialists champion the key notion of *strategic engagement* with the Xi administration. From the Hoover Institution at Stan

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President Donald Trump delivers his first state-of-the-union address.

Daphne Basel

2018-01-29 07:38:00 Monday ET

President Donald Trump delivers his first state-of-the-union address.

President Donald Trump delivers his first state-of-the-union address. Several key highlights touch on economic issues from fiscal stimulus and trade protect

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The Trump administration still expects to reach a Sino-U.S. trade agreement with better intellectual property protection and enforcement.

Apple Boston

2019-05-11 10:28:00 Saturday ET

The Trump administration still expects to reach a Sino-U.S. trade agreement with better intellectual property protection and enforcement.

The Trump administration still expects to reach a Sino-U.S. trade agreement with a better mechanism for intellectual property protection and enforcement. Pr

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The Intel trinity of Robert Noyce, Gordon Moore, and Andy Grove establishes the primary semiconductor tech titan in Silicon Valley.

Jonah Whanau

2020-04-03 09:28:00 Friday ET

The Intel trinity of Robert Noyce, Gordon Moore, and Andy Grove establishes the primary semiconductor tech titan in Silicon Valley.

The Intel trinity of Robert Noyce, Gordon Moore, and Andy Grove establishes the primary semiconductor tech titan in Silicon Valley. Michael Malone (2014)

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