Spiking up: Means that the stock has moved up from the closing price and the opening bell, it has Gapped up. Just means if you bought the day before you should be fine! You should be able to make a little profit.
RE: The Gap Up, I always want to know if the gap up was from a PR, or just hype? Usually if it is hype alone the stock will plunge back to before gap levels or below. I do not buy mostly after a gap.
My personal trading idea is simple: "I am buying when they are crying and I am selling when they are yelling"
Best of luck to you in all that you invest in.
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