The S&P500 opened and closed below the lower support line of an uptrend channel. This in itself is excuse to sell or go short, but generally you want to see 2-3 days of price below or above a channel before considering it a trend shift. Most likely first level of price support to watch for if price does head lower is $500. Nice round number and a psychological level for traders especially going into the end of the week. If bulls are still serious about the bull market they'll defend $500.
The PPO trend indicator shows the green PPO line trending below the purple signal line which indicates a short-term bearish bias in price. The trend would be considered bearish in the medium to long-term if both lines cross below the horizontal 0 level.
The TSI momentum indicator shows the green RSI line trending below the purple signal line which indicates a short-term neutral trend or slowdown in momentum. The RSI line crossing below the horizontal 50 level also indicates a short-term slowdown in momentum. The green RSI line is also trading below its lower Bollinger Band; in general you want to be short when the RSI line is below the lower BBand.
With the hot inflation numbers that came out traders are probably starting to realize that there likely won't be a rate cut by the Federal Reserve in June, and maybe no cuts at all this year. The Fed is responsible for maintaining steady prices and low unemployment. Until unemployment rises the Federal Reserve is not likely to cut rates with persistent inflation.