Hi, no it's not that, i found what the problem really is. For the limite i always see 30 and less. This morning i trade one particular strike in the option, everything was good during 40 minutes until i close that chart and load it again, that particular strike do not update the chart no more, but all the other strike, when i open the chart it's working. it's a bug that annoys.. because it forces me to choose another strike