I think perhaps a better example would be the bulk shipping industry during November of last year; take a look at DRYS in particular. $5 to $120 in a week, followed immediately by a breakdown right back to $5. (It's split a bunch of times since then, so the adjusted prices on a current chart are different, but what's important to note is the exponential shape of the price action in conjunction with absolutely zero fundamental reasons for a price increase.)