According to reports,SIFMA the closure schedule shows that the U.S. cash bond market will be October 12 closed for the entire day; U.S. equities and CME U.S. Treasury futures will trade normally.
PANews cited Financialpost as saying that when 30-year U.S. Treasury yields near 6%, a switch in the cheapest-to-deliver bond among deliverable Treasury futures securities could force position adjustments and amplify subsequent volatility.