Las Vegas Sands (LVS:$5.03,00$0.39,008.41%) is recently up 29c to $4.93. LVS May 5 calls have traded option volume of 20,241 contracts, near its open interest of 27,364 contracts. LVS May 7 calls have traded 11,120 contracts. LVS May 5 straddle is priced at $1.75, June 5 is at $2.50 and September 5 straddle is priced at $3.65 according to Track Data, suggesting large price movement.