A look at some of Wednesday's worst performing stocks.

Despite the Dow Jones Industrial Average eclipsing the 22,000 milestone on Wednesday, several companies are not joining in on the party. Here is a look at Wednesday's worst performers.

Shares of U.S's second-largest movie theater chain AMC Entertainment (AMC - Get Report) were plummeting over 24% during midday trading after it posted a larger-than-expected loss in the second quarter.

Lower over 15% in midday trading is the stock of sporting goods retailer Big 5 Sporting Goods Corp (BGFV - Get Report) . The retailer reported a top and bottom line miss for its second quarter, and offered weak third quarter guidance.

Big 5 posted earnings of 13 cents per share, missing projections for 19 cents per share. Revenue came in at $243.7 million missing estimates for $251.41 million.

Shares of Pioneer Natural Resources (PXD - Get Report) , an oil and gas exploration and production company, were falling over 11% during midday trading after it said it would cut its 2017 capital budget by $100 million to save money at a time of weak oil prices. 

The Irving, TX.-based company said when reporting second quarter results that it lowered its full-year production growth guidance to 15%-16% from 15%-18% over drilling delays. It also lowered its oil growth guidance to 17-18% from 24%-28%.

Shares of Nordstrom, Inc. (JWN - Get Report) were also declining during midday trading, lower over 4.8%, after Women's Wear Daily reported the company's discussions with potential buyout partners remain at the informal stage because they are not overly eager to go in on a deal, adding that that the window on a possible deal this year is closing.

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