How we measure ( Link) Correct within the first half hour of trading.
The prediction is posted at 4 PM EST, for the following trading day. The pressure result is based on the first 1/2 hour of the trading day. Note the dotted line is the previous day's close.
Note: positive Inflation data
Beginning Yellow Algorithm
June 15, 2023
The Red Heart Algorithm broke in low volitility, most obvious mid-may through mid-June (dates we don't record). It mostly just showed a down signal. We switched to the more consistent yellow algorithm on June 15th. 2023.