Credit contracting?

I know this is treasury day, where Timmy sooth-says the world that the US will ALWAYS retain its AAA bond rating and the need is ever more urgent to sell this debt.  Precious metals, commodities and often stocks are zonked good on treasury day.

But the chart, as NFTRH readers know, is an indicator that beyond the noise of the day, credit is looking to contract once again.  Junk debt / sound debt ratio is in danger of losing support.