The S&P 500's upward momentum began to fade in mid-May 2026 after six consecutive weeks of strong gains.
Geopolitical tensions escalated as Chinese Premier Xi Jinping intensified rhetoric regarding Taiwan reunification during a presidential visit to Asia.
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While Premier Xi acknowledged the necessity of reopening the Strait of Hormuz, he offered no concrete strategies or assistance to resolve the situation.
Inflation Data Surprises to the Upside
The Bureau of Labor Statistics reported on May 12 that the April 2026 Consumer Price Index climbed 0.6% month-over-month and 3.8% annually.
Core CPI, which excludes volatile food and energy costs, grew 0.4% from the previous month and 2.8% since April 2025.
Economists accurately predicted the headline inflation metrics but underestimated the monthly and annual Core CPI growth by 10 basis points.
The monthly rise in the headline index slowed from the 0.9% jump seen in March when energy prices initially spiked due to the war.
The April food index grew 0.5% from March, with grocery costs rising 0.7% while restaurants absorbed input expenses to limit dining out inflation to 0.2%.
Supply chain experts warn of future food cost increases because 30% of global fertilizer and 20% of global oil move through the blocked Strait of Hormuz.
Some categories like new vehicles and medical care commodities dropped in April, but shelter costs increased 0.6% to disrupt recent positive trends.
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April energy costs increased 3.8% from March, following a massive 10.9% monthly surge recorded in March 2026 from pre-war levels.
Crude benchmarks Brent and West Texas Intermediate moved higher by mid-May as diplomatic negotiations stalled and international rhetoric intensified.
Corporate entities have adapted to tariffs by sourcing goods locally, improving operational efficiencies, and systematically passing elevated costs to end consumers.
The blended tariff rate decreased after the Supreme Court struck down the use of the International Emergency Economic Powers Act in February 2026.
Producer Prices Surge, Labor Market Holds Steady
The Bureau of Labor Statistics reported on May 13 that the April Producer Price Index for final demand surged 1.4% monthly and 6.0% annually.
The April PPI data significantly missed market consensus expectations, which projected a modest 0.5% monthly gain and a 4.8% annual expansion.
The monthly PPI jump represents the second-highest increase since 2010, while the year-over-year climb marks the highest level recorded since December 2022.
