I dont trade options that often but today i decided to buy a small amount of options in a mining stock. I bought 20 of them at .20 I noticed that there were only 23 options available at .20, but as soon as market opened, i sent my order in and the ask jumped to .30 Well it came back down quickly and i saw that my options had ALL been filled at .20 (whew) Now...i look at the volume for the day and it says 20 meaning...im the only one who has bought today, responsible for 100% of volume....then i look at high/low of the day and it says .25/.20 How is that possible? Nobody bought at .25 Im the only buyer so far today. So what happened? I rechecked to make sure i didnt somehow get suckered in paying .25 for any of those options, and It says i paid .20 for all of them.