SP500 October daily 30 bar could be a KEY REVERSAL which means the trend has changed to down. The top in this uptrend has been seen.

SP500 day 02:41. Look at Wednesday bar, second from the right. The day opened above Tuesday high which was the close and closed below Tuesday's low. This is a key reversal as far as I understand. Lots of discussions in the literature about this. If it is a key reversal the high in the uptrend has been seen. If the high has been seen a bear market has started which means a WARNING