How Does Debt Move Through the Global Financial System? – OpenMarkets

Repo markets are the plumbing behind sovereign debt distribution, ensuring bonds can be financed, hedged and reused as collateral.

The journey of sovereign debt begins with government auctions and syndications, where primary dealers (large banks) and wider market participants, such as buy-side institutions, purchase bonds, which are generally offered at a discount. Corporate bonds are similar, however, issued by a firm. 

To avoid utilizing the bank’s own capital and balance sheet, dealers “repo” the bonds – selling them to cash-rich institutions like money market funds with an agreement to buy them back at a specified future date (terms vary per market). While the cash bond market is an outright purchase or sale, the repo market is treated as a collateralized loan, meaning banks have to manage the associated credit risk of the underlying bond and counterparty during the term of the trade.

Government and corporate bonds, in addition to the risk positioning in outright markets, serve as collateral to finance longs/cover shorts for market participants and are utilized in margin calls. This plumbing further assists the breadth of market participants to cash reinvest, increase leverage, enhance returns and support market liquidity. The plumbing is sensitive to some friction: 

1. Balance Sheet Pressure

Balance sheet pressure arises when capital requirements, deriving from the implementation of Basel Standards, such as the Leverage Ratio / GSIB / LCR / NSFR / HQLA / RWA / UMR, cause banks to actively manage their balance sheet accordingly in order to optimize each regulation. This allows them to increase balance sheet efficiency and reduce/increase exposures where required to manage dynamic regulatory constraints, thus requiring banks to tightly manage scenarios that impact their business. 

The varying legal structure of each bank means the impact of measures of regulation cause different weighted balance sheet challenges for each of the banks. It is not one-size fits all. As banks navigate these challenges, it can mean they have diverging strengths, in their product offerings, at various points in the year compared to their competition. Thus, there can be situations whereby banks will be less willing to intermediate trades even if they have the cash or bonds, as they are constrained by the regulations.

2. Liquidity Stress

Simultaneously, liquidity stress can manifest when a surge in demand for cash suddenly spikes, and a contraction in supply is encountered, i.e. lenders become nervous – for example, due to heavy bond issuance or tax deadlines – causing interest rates to surge as participants compete for a dwindling pool of available funding. Additionally, collateral scarcity and sudden spikes in demand for specific bonds can cause pressures.

There have been a number of stress periods over recent years in the financing markets, which have highlighted the need to keep a liquid and functioning collateral market. Localized liquidity gaps can rapidly evolve into broader market contagion in the outright and ultimately futures markets. Consequently, the accessibility of central bank facilities and connectivity to intermediating technology venues becomes increasingly important as the speed of execution accelerates with technological advances and the market moves to faster, and increasingly automated, execution.