The authors use data collected by the Office of Financial Research to describe the intraday timing dynamics of general collateral (GC) repo trades in the interdealer market. They demonstrate that a significant majority of interdealer overnight Treasury repo is completed prior to 8:30 a.m., and they explore the various factors that drive repo traders to secure funding in the early morning.
The full article is available at https://libertystreeteconomics.newyorkfed.org/2021/07/intraday-timing-of-general-collateral-repo-markets/