According to the New York Federal Reserve, dysfunction in the high-grade bond market rose throughout July. This increase in dysfunction suggests a deterioration in market liquidity, making it more challenging for investors to trade corporate bonds efficiently.

The rising dysfunction is often characterized by wider bid-ask spreads and decreased trading volumes, which can lead to higher transaction costs for market participants.

While the exact causes were not detailed in the provided search results, such increases in market dysfunction can be influenced by various factors, including economic uncertainty, changes in monetary policy expectations, or shifts in investor sentiment. The New York Fed's assessment highlights potential areas of concern for market stability and the smooth functioning of corporate debt markets.