Tesoro Enterprises, Inc. (PINK: TSNP) was the biggest stock loser and slumped 50% to $0.0001 with over 283.82 million shares. Tesoro Enterprises, Inc. (TEI) through its wholly owned subsidiary, Fashion Floor Covering & Tile, Inc. (FFCT), markets and sells carpet, wood, ceramic tile and natural stone floor and wall covering materials. FFCT sells and installs these products to retail customers, do-it-yourselfers and building contractors.