BIS Quarterly on Sept. Repo Issues
The Bank for International Settlements' latest "BIS Quarterly Review contained an article entitled, "September stress in dollar repo markets: passing or structural?" It tells us, "The mid-September tensions in the US dollar market for repurchase agreements (repos) were highly unusual. Repo rates typically fluctuate in an intraday range of 10 basis points, or at most 20 basis points. On 17 September, the secured overnight funding rate (SOFR) - the new, repo market-based, US dollar overnight reference rate - more than doubled, and the intraday range jumped to about 700 basis points. Intraday volatility in the federal funds rate was also unusually high. The reasons for this dislocation have been extensively debated; explanations include a due date for US corporate taxes and a large settlement of US Treasury securities. Yet none of these temporary factors can fully explain the exceptional jump in repo rates." The quarterly continues, "A repo transaction is a short-term (usually overnight) collateralised loan, in which the borrower (of cash) sells a security (typically government bonds as collateral) to the lender, with a commitment to buy it back later at the same price plus interest. Repo markets redistribute liquidity between financial institutions: not only banks (as is the case with the federal funds market), but also insurance companies, asset managers, money market funds and other institutional investors. In so doing, they help other financial markets to function smoothly. Thus, any sustained disruption in this market, with daily turnover in the US market of about $1 trillion, could quickly ripple through the financial system. The freezing-up of repo markets in late 2008 was one of the most damaging aspects of the Great Financial Crisis (GFC)." The piece adds, "Concurrent with the growing role of the largest four banks in the repo market, their liquid asset holdings have become increasingly skewed towards US Treasuries, much more so than for the other, smaller banks.... Shifts in repo borrowing and lending by non-bank participants may have also played a role in the repo rate spike. Market commentary suggests that, in preceding quarters, leveraged players (eg hedge funds) were increasing their demand for Treasury repos to fund arbitrage trades between cash bonds and derivatives. Since 2017, MMFs have been lending to a broader range of repo counterparties, including hedge funds, potentially obtaining higher returns. These transactions are cleared by the Fixed Income Clearing Corporation (FICC), with a dealer sponsor (usually a bank or broker-dealer) taking on the credit risk. The resulting remarkable rise in FICC-cleared repos indirectly connected these players. During September, however, quantities dropped and rates rose, suggesting a reluctance, also on the part of MMFs, to lend into these markets.... Market intelligence suggests MMFs were concerned by potential large redemptions given strong prior inflows. Counterparty exposure limits may have contributed to the drop in quantities, as these repos now account for almost 20% of the total provided by MMFs."
