Net Liquidity Index
Time Series
Formula
Net Liquidity = Fed Balance Sheet (WALCL) − Treasury General Account (TGA) − Overnight Reverse Repo (ONRRP)
- WALCL – Federal Reserve total assets (securities held outright + loans)
- TGA – Cash held at the Fed by the US Treasury; drains reserves when drawn down
- ONRRP – Overnight reverse repo facility usage; cash parked at the Fed by money market funds
Why It Matters
Gross Fed balance sheet expansion is misleading without adjusting for where reserves actually sit. When the TGA is large, the Treasury effectively "holds" reserves off the system — banks are not flush with liquidity even if the Fed technically holds assets. Similarly, a large ONRRP balance means reserve-equivalent cash is sitting idle. Net Liquidity captures the dollar value of reserves that are actually circulating in the economy and financial markets, acting as the structural floor for asset risk appetite.
Institutional Use
Used by macro hedge funds and sovereign wealth offices as the root variable in central bank liquidity cycle analysis. A sustained decline in Net Liquidity (even without rate hikes) historically precedes equity drawdowns of >15% with 3–6 month lag. Widely tracked in BIS Quarterly Reviews under the label "effective reserve supply."