Navigating the current economic landscape
Assessing the economic impact of renewed conflict in the Middle East remains challenging, particularly given its implications for global supply chains and energy markets. As long as the Strait of Hormuz remains closed, oil prices are likely to remain elevated. Beyond energy, other commodities critical to global growth move through the strait, including roughly 60% of global limestone flux used in construction, cement, and infrastructure, 50% of sulfur, 23% of nitrogenous fertilizer, and 30% of global helium supply.
The latter is especially noteworthy, as helium is a key component of semiconductor manufacturing, an industry that represents a meaningful concentration within major equity indices.
Despite these pressures, the U.S. economy remains on a solid macro foundation. However, the path ahead now likely hinges on the duration of the Middle East conflict and how long energy and other important input prices remain elevated. Tighter financial conditions may pose additional challenges, as higher gasoline prices offset most, if not all, of the household benefits of the One Big Beautiful Bill Act tax refund.
History shows that sustained shocks can seep into economic fundamentals, potentially influencing the Fed’s policy trajectory and heightening downside risks. In response to the outbreak of hostilities, equity markets tumbled, with the S&P 500 falling nearly 8% to an 8-month low, while the 10-year Treasury yield surged to a 9-month high of 4.44% amid worries of energy-fueled inflationary pressures.
During periods like this, it is not uncommon for investors to feel compelled to retreat from markets. However, while downturns can be challenging, historical—and even recent—data suggest they are often shorter-lived than bull markets, and that investors who choose to exit the market during times of stress can severely impair their long-term portfolio goals.
Stock market bull and bear cycles
Bear markets, characterized by a 20% decline from prior peaks, have historically been far shorter in duration than bull markets, which often last longer and yield higher returns. Since 1956, the average bear market has lasted approximately 13 months and resulted in an average decline of about 35%. In contrast, bull markets typically persist for around 64 months, delivering impressive average cumulative returns of 184%.
This contrast underscores the resilience and potential of bullish trends in the economic and financial landscape. While past performance is no guarantee of future results, and the exact length of any current pullback is difficult to predict, there are reasons to believe that staying invested in a diversified portfolio is still the best approach for most investors.
In fact, equity markets have already demonstrated this resilience in the current cycle. After reaching an eight-month low in late March, the S&P 500 recovered rapidly, returning to new all-time highs just a month later.
Stock market bull and bear cycles
S&P 500 price index, recessions are shaded, 1956–present
Note: Bear markets are defined as 20% declines from prior peaks. Bull markets begin at each market bottom.
Source: Clearnomics, Standard & Poor’s, Principal Asset Management. Data as of April 30, 2026.