Limestone Hill Research Logo
← Back to all letters

June 2025: Liquidity Trends & Policy Outlook

June 25, 2025by Leona Sui

The Liquidity Landscape

The Federal Reserve's June 18 decision to hold rates at 4.25%–4.50% was unanimous, but the unanimity belied a liquidity environment undergoing profound structural change. The Fed's Summary of Economic Projections still pointed to 50 basis points of cuts in 2025, yet the timing and pace remained uncertain.

What was not uncertain was the transformation occurring beneath the surface of money markets.

The QT Slowdown

In March, the FOMC had announced a significant deceleration of quantitative tightening: monthly Treasury redemption caps were reduced from $25 billion to just $5 billion, while MBS caps remained at $35 billion. By June, total Fed assets stood at approximately $6.7 trillion — having declined $176 billion since early January. Since QT began in June 2022, total securities holdings had fallen by over $2.05 trillion.

Fed Balance Sheet Composition — June 2025

ComponentAmountShareChange Since Jan 2025
Treasury Securities~$4.3T64%-$90B
Agency MBS~$2.2T33%-$86B
Other Assets~$0.2T3%Stable
Total Assets~$6.7T100%-$176B

QT Monthly Redemption Caps

PeriodTreasury CapMBS CapCombined
Jun 2022 – Sep 2022$30B$17.5B$47.5B
Sep 2022 – Mar 2025$60B to $25B$35B$60B
Mar 2025 – present$5B$35B$40B

The balance sheet, at roughly 28% of GDP, remained historically elevated but was approaching levels where reserve scarcity could emerge. The Cleveland Fed's May 2025 research paper on "QT, Ample Reserves, and the Changing Fed Balance Sheet" estimated optimal reserve levels at 10–12% of GDP, suggesting the current trajectory was nearing its natural endpoint.

The ON RRP Drain

Perhaps the most significant liquidity development of 2025 was the near-complete drainage of the overnight reverse repo facility. The ON RRP, which had once exceeded $2 trillion as money market funds parked excess cash, had declined to near zero. This was not a crisis — it was the intended consequence of QT and Treasury issuance absorbing excess liquidity. But it marked the end of a buffer that had cushioned the financial system since 2021.

ON RRP Balance — Timeline

Dec 2022
2200$B
Jun 2023
1800$B
Dec 2023
900$B
Jun 2024
400$B
Dec 2024
150$B
Mar 2025
50$B
Jun 2025
5$B

With the ON RRP effectively empty, every additional dollar of Treasury issuance or QT would now draw directly from bank reserves. The margin for error had narrowed considerably.

Reserve Dynamics

Bank reserves held at approximately $3.4 trillion, up $97 billion since early January. This increase — counterintuitive during a period of balance sheet reduction — reflected the mechanics of the Treasury General Account and seasonal patterns in tax receipts. The effective federal funds rate remained stable within its trading range, and repo rates showed no signs of stress.

Reserve Adequacy Metrics — June 2025

MetricValueThresholdStatus
Bank Reserves$3.4TAmple
Reserves / GDP~13%10-12% (Cleveland Fed est.)Above threshold
ON RRP~$0Drained
EFFR - IORB Spread-7bps0bps (stress signal)No stress
Repo Market Daily Volume$12.6TLarger than estimated
SRF Usage$0No stress

But the repo market itself was larger than previously understood. New data from the Office of Financial Research revealed that the U.S. repo market averaged approximately $12.6 trillion in daily exposures during Q3 2025 — roughly $700 billion larger than prior estimates. The discovery that we had systematically underestimated the size of a critical funding market was, in itself, a finding that warranted attention.

The Macro Backdrop

Q2 GDP would later be estimated at 3.0% annualized (subsequently revised to 3.8%), suggesting an economy that remained resilient despite restrictive monetary policy. CPI for the 12 months ending June ran at 2.7% — still above the Fed's 2% target but well below the peaks of 2022–2023.

The labor market was cooling but not contracting. The tension between solid growth and gradually rising unemployment created a policy environment where the Fed could afford to wait — but perhaps not for much longer.

What the Liquidity Data Tells Us

The liquidity picture in June 2025 was one of structural transition. The excess reserves and surplus cash that had characterized the post-pandemic monetary environment were being systematically drained. The ON RRP was empty. QT was slowing but continuing. Bank reserves were adequate but no longer abundant in the way they had been.

This was not a liquidity crisis. It was something more subtle: the end of liquidity abundance. The financial system was moving from a regime where money was everywhere to one where it needed to be managed. The implications — for funding costs, asset prices, and financial stability — would unfold over the quarters ahead.

Trade Ideas

Curve & Duration

2s10s steepener (buy 2Y, sell 10Y)

The QT slowdown signals the Fed is sensitive to funding stress. As QT decelerates and eventually ends, front-end rates should decline faster than long-end rates. The curve at ~+10bps is too flat for a Fed about to end tightening. Target: +50-70bps.

Long T-bills (1-3 month)

With the ON RRP drained, T-bills become the primary absorption mechanism for excess cash. Front-end supply/demand dynamics are favorable. T-bill yields at ~4.3% offer attractive carry with near-zero duration risk.

Relative Value

Short agency MBS vs. long Treasuries

With MBS caps still at $35B/month (vs. $5B for Treasuries), the Fed is effectively prioritizing MBS runoff. This creates supply pressure on agencies relative to Treasuries. The MBS-Treasury spread should widen by 10-15bps. Implement via TBA forwards.

Long front-end SOFR futures (SOFR Z5)

If the Fed delivers 50bps of cuts as the dot plot suggests, December SOFR futures are underpricing the easing path. The asymmetry favors being long — the Fed could cut more but is unlikely to hike from here.

Liquidity Plays

Long bank stocks with strong deposit franchises (JPM, WFC)

As excess liquidity drains, banks with sticky, low-cost deposit bases gain a competitive advantage. The end of ON RRP means deposits matter again — this favors large banks over money market funds.

Avoid levered Treasury basis trades

With reserves approaching the ample threshold and repo market sizing revealed to be larger than estimated, the basis trade (levered long Treasuries, short futures) carries elevated roll and funding risk. The SRF backstop is untested at scale.

These are directional observations, not recommendations. See disclaimer below.

Disclaimer

Opinions expressed are solely of the author's, based on current market conditions, and are subject to change without notice. These opinions are not intended to predict or guarantee the future performance of any investments or markets.

This material is for informational purposes only and should not be construed as investment, legal or tax advice, nor should it be considered information sufficient upon which to base an investment decision. Further, this communication should not be deemed as a recommendation to invest or not to invest in any country or to undertake any specific position or transaction in any currency.

There are risks associated with investments, including but not limited to the use of leverage, which may accelerate the velocity of potential losses. Investments and trades are subject to rapid price fluctuations due to adverse political, social and economic developments. The author's research may not be suitable for all investors, depending on their financial sophistication and investment objectives. You should seek the services of an appropriate professional in connection with such matters.

The information contained herein has been obtained from sources believed to be reliable, but is not necessarily complete in its accuracy and cannot be guaranteed.

Disclaimer

Opinions expressed are solely of the author's, based on current market conditions, and are subject to change without notice. These opinions are not intended to predict or guarantee the future performance of any investments or markets.

This material is for informational purposes only and should not be construed as investment, legal or tax advice, nor should it be considered information sufficient upon which to base an investment decision. Further, this communication should not be deemed as a recommendation to invest or not to invest in any country or to undertake any specific position or transaction in any currency.

There are risks associated with investments, including but not limited to the use of leverage, which may accelerate the velocity of potential losses. Investments and trades are subject to rapid price fluctuations due to adverse political, social and economic developments. The author's research may not be suitable for all investors, depending on their financial sophistication and investment objectives. You should seek the services of an appropriate professional in connection with such matters.

The information contained herein has been obtained from sources believed to be reliable, but is not necessarily complete in its accuracy and cannot be guaranteed.