
Morgan Stanley: Fed ending QT ≠ restarting QE; Treasury's debt issuance strategy is key
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Morgan Stanley: Fed ending QT ≠ restarting QE; Treasury's debt issuance strategy is key
Morgan Stanley believes that the Fed ending quantitative tightening is not a restart of quantitative easing.
Author: Long Yue
Source: Wall Street Insights
The Federal Reserve's decision to end quantitative tightening (QT) has sparked widespread market discussion about a policy shift, but investors should not simply equate this move with the start of a new easing cycle.
According to a Morgan Stanley report, the Fed announced at its most recent meeting that it will end QT on December 1, approximately six months earlier than the bank previously expected. However, its core mechanism is not the "flood of liquidity" many in the market anticipated.
Specifically, the Fed will stop reducing its holdings of Treasury securities, but will continue allowing approximately $15 billion per month of mortgage-backed securities (MBS) to mature and roll off its balance sheet. At the same time, the Fed will purchase an equivalent amount of short-term Treasuries (T-bills) to replace these MBS.
The essence of this operation is an asset swap, not an increase in reserves. In the report, Morgan Stanley’s chief global economist Seth B. Carpenter emphasized that the core of this move is changing the “composition” of the balance sheet, not expanding its “size.” By releasing duration and convexity risk associated with MBS into the market while purchasing short-dated bonds, the Fed is not materially loosening financial conditions.
Ending QT Does Not Equal Restarting QE
The market needs to clearly distinguish this operation from quantitative easing (QE). QE aims to inject liquidity into the financial system through large-scale asset purchases, thereby lowering long-term interest rates and easing financial conditions. The Fed’s current plan, however, involves only internal adjustments to its asset portfolio.
The report指出 that the Fed’s replacement of maturing MBS with short-term Treasuries constitutes a “security swap” with the market and does not increase bank system reserves. Therefore, interpreting this as a restart of QE is a misunderstanding.
Morgan Stanley believes that although the Fed’s decision to end QT early has drawn significant market attention, its direct impact may be limited. Taking Treasuries as an example, stopping the monthly $5 billion runoff six months early results in a cumulative difference of just $30 billion—minimal relative to the Fed’s massive portfolio and the overall market.

Future Balance Sheet Expansion Is Not “Easing”: Merely Hedging Cash Demand
When will the Fed’s balance sheet expand again? The report argues that, aside from extreme scenarios such as a severe recession or financial market crisis, the next expansion will be for a “technical” reason: offsetting growth in physical currency (cash) demand.
When banks need to replenish ATMs with cash, the Fed provides banknotes and correspondingly reduces the bank’s reserve account at the Fed. Thus, growth in circulating cash naturally drains bank reserves. Morgan Stanley forecasts that over the next year, to maintain stable reserve levels, the Fed will begin purchasing Treasuries. At that point, the Fed’s monthly bond purchases—already around $15 billion to replace MBS—will increase by an additional $10–15 billion to match reserve losses from growing cash demand.
The report stresses that the purpose of this bond buying is merely to “prevent reserve decline,” not to “increase reserves,” and therefore should not be interpreted by the market as a monetary easing signal.
The Real Key: The Treasury’s Debt Issuance Strategy
Morgan Stanley believes that for asset markets, the real focus should shift from the Fed to the U.S. Treasury.
The report analyzes that the Treasury, not the Fed, is the key player determining how much duration risk the market must absorb. Treasuries shed by the Fed ultimately return to the market through new debt issuance by the Treasury. Recently, the Treasury has favored increasing short-term bond issuance. The Fed’s purchases of short-term Treasuries could facilitate further increases in short-dated debt issuance by the Treasury—but this entirely depends on the Treasury’s final decisions.
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