Rates implications
A shutdown by itself should have only modest implications for the Treasury market, in part because investors had already priced in increased fiscal risks in the two weeks since the FOMC meeting, which served to focus investors on these downside risks. If the shutdown lasts more than a few days, however, we would expect a modest further rally in Treasuries [rates], particularly in the 5-10y sector of the curve, and some widening in swap spreads. Data releases (except for those released by the Fed) could also be delayed. In the 1995 shutdown episode, for example, the December 1995 employment report was delayed by two weeks. A delay in payroll numbers could result in a decline in shorter-dated volatility, in our view.
The debt ceiling has the potential to be much more impactful for the market, and a protracted debt-ceiling battle could lead to a more meaningful rally in rates. We also expect T-bills maturing in late October and early November to experience further selling pressure as the debt-limit deadline approaches. However, we do not expect significant outflows from money funds as occurred in 2011, because the expiration of unlimited FDIC insurance on bank deposits has eliminated deposits as a safe-haven alternative to money funds for many investors.