A repo with no definite term. The agreement is made on a day-to-day basis and either the borrower or the lender may choose to terminate. The rate paid is higher than on overnight repo and is subject to adjustment if rates move.
OPEN REPO
Meaning of OPEN REPO in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012