A look at the 10 biggest percentage decliners on New York Stock Exchange at 1 p.m.:

First Majestic Silver Corp. fell 6.8 percent to $10.20.

Dominion Resources Black Warrior Trust fell 5.9 percent to $5.19.

Just Energy Group fell 5.2 percent to $5.25.

United States Steel Corp. fell 4.9 percent to $26.29.

Dynegy Inc. fell 4.8 percent to $30.30.

Cash America International Inc. fell 4.6 percent to $40.67.

Sprott Physical Silver Trust fell 4.3 percent to $8.43.

Trinseo SA fell 4.1 percent to $20.35.

Alamos Gold Inc. fell 4.0 percent to $9.73.

Eldorado Gold Corp. fell 3.9 percent to $7.42.