Posted yesterday on the METAR board

“The 99D rule is the last (and the slowest) to turn bearish, of the three.
If not, the 99D rule has been bearish on every index EXCEPT the S&P since 3/30 (Russell2000) and 4/12 (Nasdaq). It will go bearish on the S&P on 5/20 unless the S&P recovers 8.5% to 4642 before then.”