3 of my 4 stocks (my fabulous 4 -- all Israel based) had somewhat similar experiences today (up, up, up then down down down). Fortunately CTCH stayed up.
I have been an IBD subscriber for a few years. It took a while but I found thier system didnt work for me. Then I became jaded with it. It was always very vague, and pretends when some hot stock comes along it like "Yeah we knew that one was going to be a hit". Always after the fact. With that said, I still am a subscriber. It does have some market direction redeeming value.
I recently found a new "service" vectorvest. It has had CRNT at the top for months. I have made quite a bit on CRNT.
I subscribe to both but IBD I think is mostly FOC.
I can't explain it but I can tell you that I saw on another message board (HSOA) this morning an announcement from someone who I believe is very well connected to hedge funds that he was shorting CRNT big time as it was climbing up through 17's. In the past when this guy (maarrb2001) has announced that he's shorting a stock, it usually starts going down. He warned longs to watch what was going to happen to CRNT over the next 1-2 weeks. Just some anecdotal info. I sold out of CRNT yesterday after a nice run up.