The 30 Year Treasury yield goes from 3.59% to 3.78% in just a couple of hours

via the FT, today's action on the 30 Year Treasury -- now that's vol, biggest move since 1987.  I never traded 30 year instruments, since they are weird...the ten year treasury is much better behaved (still, the 10 Year Treasury did 16 bps today, so this looks like it isn't a 30 year technical).