Massey, Teekay Tankers, CardioNet, Isle of Capri Casinos among big market movers Tuesday

Massey, Teekay Tankers, CardioNet are big movers

NEW YORK — Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:

NYSE:

Massey Energy Co., down $6.24 at $48.45

A huge underground explosion killed 25 coal miners and shut down production at one of Massey’s West Virginia mines.

Bally Technologies Inc., down $1.82 at $40.51

The gaming equipment supplier lowered its full-year adjusted earnings forecast below Wall Street’s expectations.

IntercontinentalExchange Inc., down $3.32 at $107.07

An analyst lowered his rating on shares of the futures and over-the-counter exchange operator after the stock’s recent run-up.

Teekay Tankers Ltd., down 89 cents at $12.15

The oil tanker operator priced a public offering of 7.7 million shares of Class A common stock at $12.25 per share.

NASDAQ:

China Information Security Technology Inc., up $1.68 at $7

The company said it was chosen as one of two suppliers to help build out China’s nationwide smart electricity grid.

CardioNet Inc., up 36 cents at $8.28

An analyst upgraded the heart device maker’s stock and said reimbursement rates should remain steady or increase after being slashed.

Isle of Capri Casinos Inc., up 85 cents at $9.61

An analyst lifted his rating on the casino operator due to a likely decline in Florida’s slot machine tax rate at horse racing tracks.

Huron Consulting Group Inc., up $1.21 at $22

A Baird analyst said the consultancy has successfully retained more important executives than he had expected.