Does government bond supply news meaningfully move the term premium?
Core argument: An event study using intraday price action around Quarterly Refunding Announcements as a proxy for unexpected Treasury supply shocks does not suggest that borrowing announcements have a meaningful impact on the authors' term premium proxy.
If bond supply was driving changes in term premium (TP)—that is driving changes in long-term yields over and above changes in the expected path of short-term rates—we might expect changes in the residual term to be explained by proxies of bond supply. But an event study which uses intraday price action around QRAs as a proxy for unexpected supply shocks, does not suggest that announcements about Treasury borrowing are having a meaningful impact on our TP proxy. The chart shows the cumulative residual from our TP proxy since October 2022 around QRA announcements and outside them.



