Ctrip.com has started to move higher in recent sessions, but one investor apparently thinks that it won't journey far. optionMONSTER's tracking systems detected the sale of 2,150 May 35 puts for $0.67 and an equal number of May 45 calls for $0.78, resulting in a credit of about $1.45. The company had been growing rapidly but has languished along with other Chinese stocks since late 2010 as investors worry about inflationary pressures.