Looks like IRX and TYX are having similar problems. Time to contact the CBOE.... http://finance.yahoo.com/q/bc?s=^IRX&t=1d http://finance.yahoo.com/q/bc?s=^TYX&t=1d
Talked to the CBOE. They said it was fixed at noon Chicago time. But it obviously wasn't since I see number TNX errors and two TYX errors since then. BTW, IB's help was not too helpful either.