On Monday, the Invesco QQQ Trust (NASDAQ: QQQ) fell 1.0%, SPDR Dow Jones Industrial Average ETF (NYSEArca: DIA) was up 2.0%, and iShares Core S&P 500 ETF (NYSEArca: IVV) gained 0.9%. However, prospects of additional government spending and quickening economic growth have fueled fears of rising inflation, weighing on bonds and pushing up the benchmark 10-year Treasury yield to near one-year highs. U.S. Treasury Secretary Janet Yellen somewhat assuaged market fears by arguing that the package would fuel a “very strong” U.S. recovery but won't cause the economy to run too hot.