If they have something ready to be released in a few days, perhaps not worth it but I don't see that it would hurt to realease an update. Any longer that that and yes it would be worth it. I don't know that the market would acknowledge it positively but it may help prevent much further bloodshed.
I think it is high time management steps in here and show they do care. I can totally understand corrections, ups and downs but the SP is half what it was a month ago. If this technology is what we all believe it is - and there is no valid reason not to believe - then this SP behavior is rediculous