Yesterday's slide in 30-year yields helped to calm market nerves but the improvement stalled today after they fell as low as 4.76%. Since then, they have turned higher to touch 4.84%.

US 30s
US 30s 10 mins

I don't think the market will be too fussed so long as they stay below 4.90% but it's something to keep an eye on.

Source: Forex Live