The price pivot zone of 763.90 holds back sellers. Probably, the downward movement is a corrective wave (B), an upward construction. Also, Stochastic Oscillator signals oversoldness.
Trading recommendations:
Buy while an ascending pattern is forming, where the wave (as) breaks through the inclined channel of the descending pattern.
Stop loss under the price pivot zone of 763.90.
Target levels: 798.50; 833.50.