The blue line on the chart are where the Stochastics crossed after being in oversold territory.
However it is noteworthy that while the stochastics plunged, price held up, only falling 5-6 points.
This could be a bull flag, or the stochastics could imbed in theoversold area while price
continues to fall. I would wait to see if price closes above the 13 MA (shown).