Bizzare Rally in Small-cap Solar Stocks

There has been a massive rally this week in small-cap solar stocks (chart). It seems to be associated with the Solar Power International conference which is going on in Los Angeles right now.

dollars in millions
Name	Ticker	Market Cap	EV	EBITDA	EV/EBITDA
DayStar Technologies	DSTI	10	11.6	-17	-1
Ascent Solar	ASTI	151	89	-23	-4
Evergreen Solar	ESLR	193	456	25	18
Hoku	HOKU	162	191	-7.6	-25
Spire	SPIR	53	42	-7	-6
Emcore	EMKR	89	72	-25	-3
CVD Equipment	CVV	39	33	1	33

Sadly, none of these companies are very profitable. This rally seems to be a case of daytraders chasing momentum.