US stock futures (ES=F, NQ=F, YM=F) dip in Monday's pre-market session after the S&P 500 (^GSPC) closed out its best May trading month since 1990. China has snapped back on President Trump's claims that the nation has violated its trade agreement with the US,

The S&P 500 Index ($SPX) (SPY) today is up +0.21%, the Dow Jones Industrials Index ($DOWI) (DIA) is up +0.11%, and the Nasdaq 100 Index ($IUXX) (QQQ) is up +0.46%. June E-mini S&P futures (ESM25) are up +0.

Wall Street closed out trading higher on Monday despite escalating trade tension concerns between the United States and China.