AMEX:SPY   SPDR S&P 500 ETF TRUST
Looking at these levels for SPY.
If it breaks this 30 min / 1hr trend to the upside, I see it reaching the supply zone I have drawn out.
Another hint would be to follow the direction of fibs, bollinger band expansion (allowing room into the supply zone).
Disclaimer

The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.