You’ve got new ’stock options.MEETRootstock’s New Chef (and Dinner Menu)What: Duncan Biddulph fills the void left by former chef Remy Ayesh with hearty, farm-fresh fare (Benton’s country ham crusts, Wisconsin trout, pâté).Why: Biddulph sous-cheffed at Lula Cafe, so you know he’ll bring the goods.When: Mon.-Sat., 5 p.m.-1 a.m.Where: 954 N. California Ave., at Augusta Blvd. (773-292-1616).EATIPO at W Chicago - City CenterWhat: New urban cuisine-focused restaurant with whimsical dishes (macerated grape salad, grilled melon block with peekytoe crab and granola, chocolate and popcorn with corn sorbet) located in the Financial District. Why: The surf-and-turf breakfast Benedict is killer.When: Mon.-Fri., 6:30 a.m.-10 p.m.; Sat., 7 a.m.-10 p.m.; Sun., 7 a.m.-11:30 a.m.Where: 172 W. Adams St., b/t S. LaSalle & Wells Sts. (312-917-5608).CELEBRATEPegboard Modern’s Snazzy New SpaceWhat: Open house rings in the arrival of new vintage/mod products (Eames lounge chairs, Adrian Pearsall coffee table, Charles Harper serigraph).Why: Special prices and tasty bites.When: Sat., 11 a.m.-4 p.m.Where: 4259 S. Western Blvd., at 43rd St. (773-255-8341).RALLYLet Lounge Launches at MarketWhat: New year-round (climate-controlled), outdoor table tennis lounge; fall menu (curried crab cakes with kimchi); and cocktails (blackberry mojito).Why: Compete in tourneys for awesome prizes (Blackhawks tickets, cash).When: Daily, 8 p.m.-2 a.m.Where: 1113 W. Randolph St., at N. May St. (312-929-4787). Up to 55% off Soho HeartsAmsterdam native Juliette Booker’s jewelry collection runs the gamut from the elegant (bows and layered chains) to the playful (animal pendants and feathers). Take up to 55% off Soho Hearts today on Swirl.