A retirement activity, also known as pension, PR or sale and retirement, is a form of short-term borrowing, mainly in government bonds. The trader sells the underlying security to investors and, after consultation between the two parties, resells it shortly thereafter, usually the next day, at a slightly higher price. Despite regulatory changes over the past decade, systemic risks remain for the repo industry. The Fed continues to worry about a failure of a large repo distributor, which could stimulate a sale of fire under money market funds, which could then have a negative impact on the wider market. The future of the repo space may include continuous rules to limit the actions of these transacters, or even involve a transfer to a central clearing house system. . . .