Does anyone (mcurto?) have information why there is significant OI in the March 162-210 strike calls? It looks like those prices are corresponding to -5% to -10% interest rates. It does not appear convexity related, perhaps another type of hedge. Not much premium paid, but it looks to be worthless unless you see the mother of all short squeezes!
http://www.cmegroup.com/cmegroup/tr...treasury-note_quotes_settlements_options.html
http://www.cmegroup.com/cmegroup/tr...treasury-note_quotes_settlements_options.html

