If you click on the chart, you'll see the breathtaking decline in 10-year yields in the past several months. That decline has accelerated in the past two days, on the heels of the weak jobs report.
As investors flee to the quality of Treasuries, yields fall. But the same fear that fuels the desire for bills and bonds also pressures stock prices. The weakness in yields has thus provided a great sentiment indicator for
trading those market ranges.