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

NYSE• Ford Motor Co., up 11 cents at $1.96The automaker said changes to its union contract will help it achieve parity with wages paid by overseas-based competitors.• Citigroup Inc., up 9 cents for $1.54The stock rose for a second straight day after news that it was operating at a profit fueled Tuesday's big market advance.• Staples Inc., down 27 cents at $15.47Customers shied away from buying expensive office furniture, leading to a 14 percent drop in fourth-quarter profit.• Big Lots Inc., up $1.23 at $19.81A JPMorgan analyst upgraded the stock to "Overweight" from "Neutral," saying shares are inexpensive and sales at the discount retailer are recovering.• ConocoPhillips, down 2 cents at $37.98The oil company said it expects oil and gas production to be flat this year as it reduces spending and cuts costs.• Vail Resorts Inc., up $2.05 at $18.56The ski resort operator reported a better-than-expected quarterly profit and announced companywide wage cuts.

NASDAQ• Apple Inc., up $4.05 at $92.68The company unveiled a newer and smaller version of its miniscule iPod Shuffle, reducing the size to just 2 inches long.• Take-Two Interactive Software, down 44 cents at $6.41Shares took a hit after the video game publisher issued a second-quarter outlook below Wall Street's expectations.