Hope I didn't make a mistake

Someone had offered to introduce me to the management of DemandTech, a fast-growing technology provider for the retail industry. I declined because I had something else in process, and I was a bit iffy about the move to SF (and then commuting to the valley). Now that they finally have coverage initiated and put out nice Q2 results, their stock has soared from less than $11 in mid-September to $18 today. Can't get my limit order to execute, it was too low (and probably still is). What is with this market???!