Check out which companies are making headlines before the bell:
Endo International—Endo will buy Par Pharmaceutical from private equity firm TPG for $8.05 billion in cash and stock. Par was taken private by TPG in 2012 for just under $2 billion.
Intel, Altera—The chip makers are said to have resumed talks on a possible Intel purchase of Altera, according to the New York Post. The two held talks earlier this year, but they were not successful.
Ocwen Financial—The mortgage lender and servicer is in talks with lenders about renewal, replacement or extension of debt arrangements, and said it may not have adequate sources of funding if those talks are unsuccessful.
Las Vegas Sands—Goldman Sachs downgraded the casino operator's stock to "neutral" from "buy," saying it faces tough challenges in its two largest gaming markets, the U.S. and Macau.
Yelp—Yelp was downgraded to "neutral" from "overweight" at Piper Jaffray, which believes a possible buyout is already priced into shares and that it is fairly valued given its current outlook.
BHP Billiton—BHP's spin-off known as South32 began trading in Sydney with a market value of $9 billion, which is more than 30 percent below the high end of forecasts. South32 administers former assets belonging to BHP including aluminum, silver, coal, and other commodities.
Toyota, Honda—The two topped an annual study of automakers with the best supplier relations in the U.S. while GM and Fiat Chrysler tied for last. The study by Planning Perspectives equates better supplier relations with lower costs for parts, and said GM would have earned another $750 million last year with better supplier relations.
ConocoPhillips—The energy producer expects to maintain current capital expenditure levels for another three years, after joining other oil majors in cutting capex earlier this year in the wake of declining oil prices. That proclamation came from CEO Ryan Lance in a Reuters interview.
Alibaba—The online retailer was sued by a group of luxury goods makers over sales of counterfeit goods. Gucci, Yves Saint Laurent and other brands accuse Alibaba of knowingly making it possible for counterfeiters to sell their products. Alibaba said the complaint had no basis and that it would "fight it vigorously."
McDonald's—McDonald's saw hedge fund investors take new positions, according to the latest round of 13-F filings. Jana Partners, Corvex Management and Glenview Capital took new positions, while Highfields Capital raised its stake.
Apple—Apple got a little less love from hedge funds than McDonald's, with Omega Advisors and Coatue Management among the firms that reduced or sold their stakes in the company.
Sysco Corp.—Sysco said the U.S. avian flu outbreak would crimp egg and chicken supplies for nine to 18 months. Sysco is the largest U.S. food distributor.
Google—Google will launch "buy buttons" on search results in the coming week, according to The Wall Street Journal, as it seeks to elevate its presence in the online shopping market.