The market began a busy week roughly flat following the massive selloff in the last full week of July. Big tech sellers showed up in force on Tuesday morning, sending Nvidia and other first-half winners lower.The drop pushed the Nasdaq deeper below its 50-day moving average heading into the Fed’s rate decision and Jay Powell’s speech on Wednesday. Wall Street is also waiting nervously on earnings reports from Meta, Apple, Amazon, and other big tech stocks this week.The pullback was healthy and there could b ...