The US 10-year Treasury yield reached its highest level since 2007 on Tuesday, nearing 5.041%, as concerns about inflation and the Federal Reserve's potential interest rate hike intensified. This surge coincided with oil prices breaching $105 a barrel and a decline in stock markets.

The Federal Reserve is widely expected to implement a quarter-point interest rate increase at its upcoming meeting on Wednesday, moving rates to the 3.75% to 4% range. This would mark the first rate hike in three years. CME FedWatch data indicates a 94% probability of this outcome. Major financial institutions like Morgan Stanley and Goldman Sachs have shifted their predictions to align with a rate hike, abandoning previous forecasts of holding rates steady.

Rising diesel prices, influenced by the ongoing conflict in the Middle East, are contributing to inflationary pressures. National average diesel prices hit a record high of $6.27 per gallon, with gasoline reaching $4.33 per gallon. Brent crude oil saw a 2.9% increase, closing at $108.76 a barrel. The disruption of energy supplies through the Strait of Hormuz is a significant concern.

The increase in Treasury yields, particularly the 10-year and 30-year rates, raises concerns about borrowing costs for mortgages, auto loans, and businesses. The 30-year Treasury yield climbed to 5.368%, while the 2-year yield rose to 4.665%.

Despite these pressures, National Economic Council Director Kevin Hassett expressed optimism that inflation may be cooling, citing signs of a slowdown in key economic indicators. However, officials within the Federal Reserve remain divided on the appropriate timing of interest rate adjustments, balancing the risks of hindering economic growth against the potential for uncontrolled inflation.

In related market movements, stocks tied to artificial intelligence experienced a downturn this week, following calls for a slowdown in AI development and warnings about its potential societal impact. Shares of companies like Micron and Intel saw modest declines.