Wall Street's main stock indexes closed lower on Thursday (Aug 20) as rising Treasury yields dented risk appetite, disappointing results from retail bellwether Walmart soured investors on the consumer sector and rallying oil prices fanned inflation worries. Regarding the options market, a total volume of 63,904,797 contracts was traded, of which 55% were call options. Top 10 Option Volumes Top 10: $NVIDIA(NVDA)$, $Tesla(TSLA)$, $SpaceX(SPCX)$, $Apple(AAPL)$, $Strategy(MSTR)$, $Intel(INTC)$, $Micron T