After about half an hour of trading, the S&P 500 index rises approximately 0.4 percent, the technology-heavy Nasdaq composite index 0.3 percent and the Dow Jones industrial index around 0.8 percent.
Both the S&P 500 and the Nasdaq composite index noted record-high closing levels on Tuesday.
Tuesday's gains were partly due to the release of important inflation statistics that may weigh heavily on the country's interest rates, which the central bank Federal Reserve (Fed) will decide on next at its meeting on September 17-18.
The market had on Monday priced in that the Fed with 87 percent probability will lower the interest rate next month, from today's interval of 4.25-4.5 percent. The central bank's inflation target is 2 percent.
US President Donald Trump's announcement that the tariff pause against China will be extended by another 90 days also had a positive impact on the stock market.
On Wednesday, US Finance Minister Scott Bessent says he believes the Fed's interest rates are too tight and should be 150-175 basis points lower, according to Bloomberg.
According to Bessent, the central bank could initiate the rate cuts in the coming months - with a start of 50 points in September. This would mean a new interval of 3.75-4.0 percent.
