I have one completed impulse down from the ATH at 18709.00. This impulse started with an expanding leading diagonal and finished at 17181.75. Bulls (green) see this an A wave, and bears (red) see this as wave 1. Bounce off low tagged the 23.60% retracement with a zigzag and then found a new lower low. With this I see two possibilities: either we start forming more impulse waves down or price moves back up towards 17553.25 to form a flat corrective structure.