The index has plunged about 3.5% percent year to date and nearly 14.00% from early May high's. On the weekly chart, the action traced out a longer-term price top between 24550-24157-24544 in Oct 2009-July 2015-May 2018 via the formation of a triple top pattern. Today the price has tested an interesting trendline with a highly oversold daily study RSI. Any short-term should attract selling interest again with a bigger retracement to sub-18k levels.