Key Points:
- United States stock markets recovered from a spring slump to reach brand new record highs.
- Bank of America warns that computer-driven trading funds have largely exhausted their buying power.
- Systematic trading funds recently pumped about $200 billion back into the stock market.
- A sudden market drop could trigger up to $77 billion in automatic selling over the next week.
United States stock markets recently climbed back to record highs, erasing the painful losses investors suffered during a sharp decline in March and April. Wall Street traders feel optimistic as major indexes reach new peaks. However, major financial institutions see warning signs flashing behind the scenes. On Friday, Bank of America issued a new report cautioning that a major source of fuel for this stock market rally is rapidly running out.
Analysts at Bank of America, led by Chintan Kotecha, closely track the behavior of Commodity Trading Advisers. These advisers operate large, computer-driven investment funds that use mathematical models to follow market trends. When the stock market goes up, these automated systems buy more stocks to ride the wave. When the market goes down, they automatically sell. The bank warns that heavy buying by these trend-following funds is beginning to fade.
To understand the current warning, investors must look at what happened over the past few months. When the stock market hit a low point in early April, these systematic trading funds stepped in and started buying heavily. Bank of America estimates that these funds rebuilt their stock portfolios by purchasing roughly $200 billion in long positions. This massive wave of cash provided serious support for the market and helped drive stock prices back to record highs.
The brokerage firm notes that an important shift happened this week. The computer models that drive these massive trading funds no longer see a reason to add money to the stock market. Bank of America explained that even if stock prices continue to rise, these systematic funds will not engage in any meaningful additional buying. After several weeks of heavy buying, the funds essentially maxed out their stock budgets.
Because the computer programs will not buy more stocks, the bank warns that downside risks have officially returned to the market. If a negative news event causes the stock market to pull back, these same computer programs will flip their strategy and automatically start selling. Bank of America estimates that a standard market pullback could trigger up to $50 billion in immediate selling by these trading funds.
The immediate risk looks incredibly lopsided for the week ahead. Bank of America ran the numbers through its own models to see what might happen in different scenarios. If the stock market drops over the next week, the bank estimates that these systematic strategies could sell an astonishing $77 billion in stocks. Contrast that massive number with the upside scenario. If the stock market remains flat, these funds will buy only about $400 million in stocks. The potential for heavy selling far outweighs the potential for new buying.
The longer-term trend-following models also remain very cautious right now. The analysts explained that the stock market experienced wild price swings during the massive sell-off in March. That intense period of market chaos disrupted normal price trends. Because overall market volatility remains elevated, the computers hesitate to commit more capital to long-term stock market bets.
Beyond the stock market, Bank of America also looked at how these funds handle government debt. Traders use United States Treasury futures to bet on the direction of interest rates. According to the report, these automated funds are currently approaching their maximum capacity for short positions in short-dated Treasury contracts. This means the computer models aggressively bet that the value of these short-term government bonds will fall.
The analysts also noticed an interesting disconnect happening in the energy markets. Crude oil prices suffered a very sharp decline this week as traders worried about global energy demand. Despite this sudden drop in oil prices, the trend-following computer models ignored the noise. These funds kept their long positions in oil futures, meaning they continue to bet that crude oil prices will eventually reverse course and climb higher.
Average investors need to pay close attention to these mechanical trading forces. While the stock market looks healthy on the surface, with its brand-new record highs, the massive funds that helped push it there are now sitting on their hands. Without billions of dollars in automatic buying to support prices, the stock market looks much more vulnerable to a sudden drop. If stock prices start to slide, the computers will quickly join the selling crowd and make the drop even worse.
