Below is the S&P 500 JUNE FUTURES daily chart. Each box is 6 points. On 3/15/2021, the S&P 500 June Futures was at 3954, and the RSI was at 89. It climbed up another 18 points before the correction set in. On 4/2/2021, the index was at 4062, and the RSI was at 89. It seems we may see the June Futures hit the high of 4080 today, which means the cash index may hit 4090.