Rate cuts do not necessarily mean easing: The Fed's balance sheet is the real barometer for the AI rally

Keywords: Federal Reserve, balance sheet, rate cuts, liquidity, AI stocks, semiconductors, tech stocks, market turning point

Introduction

In recent years, the AI wave has swept global capital markets, making semiconductors, data centers and mega-cap tech stocks the main targets of capital. In this seemingly ever-expanding bull market, every Fed comment has been highly sensitive, especially debate over when rate cuts will begin, which has moved investor sentiment. Yet Wall Street veteran Victor Sperandeo recently warned that investors may be watching the wrong signal. What really determines the strength of liquidity is not necessarily the federal funds rate, but changes in the Fed's balance sheet.

That view may sound counterintuitive, but it points to the market's deepest logic: rates affect the cost of capital, while the balance sheet determines whether money is truly abundant. For today's crowded AI trade, that distinction may be more important than most people think.

1. Rate cuts are a 'price tool'; the balance sheet is the 'quantity tool'

In the monetary policy framework, rate cuts are usually seen as a signal of easing, lowering corporate financing costs, improving valuation expectations and lifting risky assets. But rate cuts do not automatically mean liquidity improves in tandem, because how easily funds can be obtained also depends on how much money is actually in the financial system.

Sperandeo's core view is exactly this: rate cuts only change the price of money, while the balance sheet determines supply. If the Fed cuts rates while shrinking its balance sheet, financing costs may fall on the surface, but bank reserves shrink and deep market liquidity tightens, so financial conditions may not truly ease. In other words, the market sees 'lower rates' but may feel 'money contraction.'

This logic matters especially for U.S. stocks right now. The most crowded trade is concentrated in the AI chain, including chipmakers, cloud service providers, data center builders and a few large tech platforms. These sectors have kept drawing in capital and created clear concentration risk. Once liquidity weakens at the margin, such high-valuation, crowded assets are often the first to come under pressure.

2. Why liquidity matters more than rates

From the way markets work, rate changes affect the 'cost of borrowing', while liquidity changes affect whether there is enough money to borrow, trade and absorb supply. In a liquid environment, risk appetite rises easily and investors are willing to pay higher valuations for growth stories; when liquidity tightens, even with lower rates, funds may become more cautious as risk appetite fades.

Looking back on his trading experience in the 'Volcker era', Sperandeo recalled a powerful lesson: when the Fed tightens money supply, financial institutions also shrink their balance sheets, eventually forcing market participants to sell holdings to raise cash. The result is not just price swings, but weaker market depth, wider bid-ask spreads and a rapid deterioration in liquidity.

That experience shows that monetary policy transmits not only through rates, but also through bank lending, market financing and asset repricing. For the AI sector, this impact is especially clear. This rally depends not only on profit growth expectations, but also on continuous capital spending and rich valuation support. Once the pace of funding slows, the market's logic for pricing 'unlimited future growth' can begin to loosen.

3. The AI rally's weak spot: crowded, concentrated and highly dependent

The AI theme has become a market focal point not only because of the tech revolution itself, but because it offers a powerful narrative and a path to earnings delivery. Growing chip demand, expanding computing power, data center buildout and the capital spending tied to large-model training together form what looks like a self-consistent growth loop. The problem is that this loop is extremely sensitive to liquidity.

First, the leading companies in the AI chain are generally huge and highly valued, and the market has already priced in much of their earnings growth. Once incremental capital fades, share prices can swing more sharply. Second, excessive capital concentration means the market lacks enough substitute choices; if the main trade pulls back, the index will also take a noticeable hit. Third, the AI supply chain itself relies heavily on capital spending. From chip purchases to data center construction, it needs a steady financing environment.

Sperandeo's concern is that if the Fed later adopts a 'rate cuts + balance sheet reduction' combination, a policy backdrop that looks easy on the surface but is tight in substance could become a hidden force suppressing the AI rally. In other words, the market does not need a major fundamental shock; as long as the liquidity supporting valuation expansion starts to ebb, the rally may lose momentum.

4. The market should rethink what 'easing' means

For a long time, investors have simply equated 'rate cuts' with 'good news'. That view is not entirely wrong, but in today's complex financial environment it is no longer complete. Real easing is not only lower rates, but also a financial system with ample liquidity, stable credit expansion and sustained risk appetite.

So the market needs to rethink a basic question: is the Fed lowering costs, or is it adding liquidity? If the answer is only the former, support for high-valuation assets may not be strong enough. Especially with global macro uncertainty still high, corporate earnings diverging and valuations elevated, any marginal liquidity tightening can be magnified quickly.

For investors, that means watching not just rate decisions, but also balance sheet changes, repo operations, reserve levels and money-market liquidity indicators. More often than not, what determines the market's direction is not the words 'rate cut' in a headline, but the less-discussed shift in money supply behind them.

Conclusion

Victor Sperandeo's warning is essentially a correction to the market's one-dimensional reading of Fed policy. For U.S. stocks, especially AI and semiconductors, what may truly decide the rally's direction is not rate cuts themselves, but whether the Fed is releasing more liquidity. Rates can affect the valuation anchor; the balance sheet determines whether money can keep pushing prices higher.

In a market that is highly crowded and increasingly concentrated, the importance of liquidity changes is magnified further. If a 'rate cuts but balance sheet reduction' policy mix emerges, the market may still look optimistic on the surface, but risk will already be building. For investors, understanding this means no longer chasing policy headlines alone, but learning to spot risk and turning points from the deeper logic of liquidity.

The capital market in the AI era does not lack stories. What may be lacking is simply enough money to finish telling the story.