"When in doubt, get out." I found this one in my stock guide, The Ancient Egyptian Book of Stock Trading (translated from hieroglyphics). Seriously, no one has to be in the market all the time and it is appropiate to step out if one is uncertain. It is even a good idea if one is getting hammered consistently, the market is one place where brave souls have strong chins, manly physiques, and broke brokerage accounts. It is a really good idea if it keeps you awake at night.
This market is reminiscent of the 2000 bubble. This is because it is driven by the same guy, Greenspan, pumping the same stuff money, liquidity like no tomorrow into the US economy.
You think kmrt is wacky, nvec went from 20 to 38.6 last week, 7+ points on friday. I doubt if 1 out of a hundred buyers understood the tech or business of MRAM or NVEC. I've been playing this as cautious, scared bull with an eye for the door and that has worked OK. Left a lot of money on the table, made a little, and if it collapses I hope not to be standing in a crater. Good luck to you.