
One way to characterize “good times” in the financial markets is when prices go up and returns are positive. Based solely on these criteria, August was a good time: stockholders have recently enjoyed four consecutive months of good times.
Another gauge of good times is when stock market indices reach an all-time high point. This has happened twenty times so far in 2025 for the S&P 500 index of large company US stocks – and most recently on August 28.
In addition to stocks, bonds show evidence of good times, too. Credit spreads, which measure the extra yield above risk-free Treasuries that bond investors demand for holding riskier corporate bonds, are approaching all-time lows.
This means bond investors are demanding only modest compensation to hold riskier corporate obligations, when compared to safer government obligations.
For many investors, though, today’s good times are paired with worry.
Two articles published recently encapsulate this concern:
- US Stocks Are Now Pricier Than They Were in the Dot-Com Era subtitle: The S&P 500 has never been this expensive, or more concentrated in fewer companies – Wall Street Journal
- Credit Fuels the AI Boom, And Fears of a Bubble subtitle: Plenty more deals are coming – Bloomberg
Both articles question the ability of the stock and bond markets to continue to deliver exceptional returns – but interestingly, neither predict “the end is nigh” for the financial markets.
Many investors seem to be left with an unpalatable choice: either climb the wall of worry or stop climbing and get off the wall.
With this sentiment in mind, I started thinking more deeply about the idea of climbing the wall of worry, and if it was particular to periods where markets had strong momentum and stock indices were reaching ever-higher high points.
It turns out this does not seem to be the case. Rather, it seems that many investors tend to worry all the time.
A quick web search produced at least one article by a financial institution with the phrase “climb the wall of worry” written in each year of the past decade.
The most recent “wall of worry” article that I found, produced in July by JP Morgan, references an extensive study by their well-regarded investment strategist Michael Cembalest, who contends that markets rarely reward fear-based decision-making.
Cembalest catalogued the dates when well-known forecasters and fund managers issued apocalyptic warnings, and he charted what would have happened over time if an investor had acted on those warnings by selling stocks and buying bonds.
The long-term results of “listening to the Armageddonists” have been unfavorable, as shown below.

Source: JP Morgan Asset Management
The takeaway is not to never sell stocks, nor is it a case against owning bonds. Rather, the message is to refrain from letting one’s worries progress to actions that result in unbalanced or inappropriate portfolio allocations.
Volatility, and a measure of worry, is the price investors often must pay for satisfactory long-term returns.
In August, returns were good across the board. Large company US technology stocks delivered positive returns but surrendered their leadership status.
US small company stocks, slower-growing companies that prioritize paying dividends to shareholders, and foreign company stocks all generally outperformed US technology stocks last month.
Also, foreign currencies generally strengthened when compared to the US dollar, which gave an additional boost to foreign stock funds, when performance was measured in dollar terms.
US Treasury bond yields generally declined in August, which translated to positive performance for most bond funds, too.
One exception was longer-term bonds.
The yield of the 30-year Treasury bond, for example, climbed by 0.03 percentage points in August and settled at 4.92% at month end. This resulted in negative returns for some bond funds with holdings concentrated in long-maturity debt.
The chart below shows financial market performance for the month of August and Year-to-Date (YTD):

Source: Moore Financial Advisors & Morningstar
-RK