Base on Renko candle chart, we easier realize an ABC Correction Wave are forming after Elliott Uptrend Waves completed.
This correction should stop at $315 - $320, right the top of 3rd Elliott Wave. That is important Demand Zone.
If a big Panic Sell happen, it easy to take SPY down to $295 - $300.
To break this downtrend, SPY needs to close above $352 for at least 2 candles of D1.
This scenario, in my opinion is only about 15% likely to happen.
Sit on hands and watch the trend.
Disclaimer.
P/s. I hope I'm wrong.