$SPX w/$SPXUDP (up/down volume pct).  $SPXUDP can show "net inflows" and extent of distribution to the downside.  A string of "up days" close to or &gt;90% w/limited to no downside distribution shows a healthy turn.  Note narrow spikes in decline and wider pushes ~90 now. https://t.co/yBEq5YnO4Z