Check out which companies are making headlines before the bell:
Costco—Costco reported a 2-percent drop in March comparable store sales, a slightly larger decrease than the consensus forecast of a 1.2-percent decline.
Walgreens Boots Alliance—The drugstore chain reported adjusted quarterly profit of $1.18 per share, beating estimates of 95 cents. Revenue, however, was below Street forecasts. The company revealed plans to close about 200 U.S. stores, and put other streamlining measures into place that will save $1.5 billion annually by the end of 2017.
L Brands—The Victoria's Secret parent reported a 9-percent increase in comparable store sales for March, above estimates of a 6-percent increase.
PulteGroup—JPMorgan Chase downgraded the home builder to "underweight" from "neutral," saying the company was likely to underperform its peers. JPMorgan also said the home building group as a whole is vulnerable to a pullback following a strong year-to-date performance.
Dunkin' Brands—The food chain operator is among the stocks Credit Suisse added to its Global Focus List, pointing to an improving outlook for lower income consumers and higher pricing, among other factors.
Constellation Brands—The spirits producer reported adjusted quarterly profit of $1.03 per share, 9 cents above estimates, with revenue essentially in line. The company also initiated a quarterly dividend of 31 cents per share.
Alcoa—The former Dow component reported adjusted quarterly profit of 28 cents per share, 2 cents above estimates, though revenue was below analyst forecasts. CEO Klaus Kleinfeld said Alcoa's growth compared to a year earlier was due entirely from new businesses.
Zynga—Zynga founder Mark Pincus has returned as CEO following the resignation of Don Mattrick. Mattrick had joined Zynga from Microsoft in 2013 when Pincus originally stepped down.
Zumiez—The action sports apparel seller reported a 5.5-percent increase in comparable store sales for March, shy of the 6.4-percent consensus estimate. Total sales for Zumiez were up 11.1 percent from a year earlier.
Pier 1 Imports—Pier 1 beat estimates by 3 cents with adjusted quarterly profit of 39 cents per share, though revenue fell below estimates. The home goods retailer also forecast current quarter profit below Street estimates, though it did announce a 17-percent increase in its quarterly dividend to 7 cents per share.
Bed Bath & Beyond—The company matched estimates with quarterly profit of $1.80 per share, with revenue slightly below forecasts. The housewares retailer also projected a 2- to 3-percent increase in comparable store sales for the current fiscal year, below Street estimates, with results hurt by increased promotional activity.
Brookfield Asset Management—Brookfield announced a three-for-two stock split, as well as a dividend increase of 6 percent.
JPMorgan Chase—CEO Jamie Dimon defended his bank's size and business model in a letter to shareholders. Dimon maintains that the company is not necessarily more risky because of its size.
Walt Disney, Apple—The two companies are reportedly in dispute over the number of Disney's channels that Apple should include in Apple TV. According to Thestreet.com, Disney wants Apple to include most or all of its channel, but Apple wants fewer.
Apache—The energy producer sold its Australian exploration and production business to a private equity consortium for $2.1 billion in cash.