The SPDR S&P 500 gapped down 0.76 percent on Wednesday, for a total of a 3.14 percent decline since reaching a high of $462.07 on March 29. Traders and investors have become jittery in anticipation the Federal Reserve will announce an aggressive rate hike when the central bank’s March meeting minutes are released at 2 p.m. The gap down sunk the ETF under the 200-day simple moving average (SMA), which further spooked investors and caused more selling when the markets opened. The 200-day is an important bellwether indicator that marks the turning point between what is considered a bull versus a bear market. The Russia-Ukraine crisis has also weighed on the market again recently as war crimes and human rights atrocities are discovered in newly liberated towns and cities in Ukraine, making further sanctions against Russia from the U.S. and European Union more likely. The 10-year treasury yield, which indicates the level of …