 Eldorado Resorts Inc. said Thursday it will resume operations at five Nevada casinos on Thursday. The Reno-based company said it will reopen Eldorado Resort Casino, Silver Legacy Resort Casino and Circus Circus Hotel Casino in Reno, MontBleu Resort Casino Spa in Lake Tahoe and Tropicana Laughlin. The company has now reopened 16 of its 23 casino entertainment facilities following the suspension of operations in March. Shares soared 7 in premarket trade, but are down 35 in the year to date, while the SP; 500 has fallen 3. 