Bond market volatility is spiking, raising concerns for corporate debt investors. While corporate bonds have held up during the global government bond selloff, strategists warn the strength may not last. Kelly Kowalski of Mass Mutual notes that elevated and volatile yields restrict financial conditions and pressure corporate margins.

JPMorgan estimates US high-grade spreads could widen by 0.07 percentage points. Five-year Treasury yields have climbed above 5% for the first time since 2007. The ICE MOVE index surged to 105 basis points, its highest since March, signaling rising debt market stress.

Corporate bond spreads were 77 basis points, two points tighter than early month levels. However, US companies sold $33 billion of bonds this week, below the $40 billion forecast. The CDX Investment Grade Index rose to 58 basis points, reflecting growing default risk concerns.

Robert Tipp of PGIM expects short-lived shocks if rate hikes occur alongside a strong economy. Tom Murphy of Columbia Threadneedle stresses that investors demand stable, higher yields, which have been unstable. The cost of credit derivatives protecting North American credits has edged higher, indicating increased anxiety.

Despite resilience, the combination of rising rates, inflation fears, and volatile yields presents significant risks for corporate debt markets.