I think that yields drop due to increased demand for notes and bonds. Some of that money could be coming from equities. This is why I think that relating news etc., is very subjective and that's why I only look at technicals--at least in the short time frame of hourly, daily, weekly charts.
I just looked at the one minute and I didn't see it. Are you looking at Stochastic? I do however see a bearish divergence on one minute chart in the histogram occurring at 12:09. The one minute chart is too short for me though.