Two weeks ago, Bank of America tripped recession-watcher alarms, when it announced out that one of its surest bear-market indicators, one which has never had a false negative, had just been triggered. As we said at the time, according to BofA’s Savita Subramanian in November the S&P 500’s three-month earnings estimate revision ratio (ERR) fell for the fourth consecutive month to 0.99 (from 1.03), indicating that for the first time in seven months, there were more negative than positive earnings revisions, needless to say a major negative inflection point in the recent surge in profits.
Why was this significant? Becase as BofA explained, the three-month S&P 500 ERR has been used by the bank as one of its 19 key “bear market signposts”, and with the one-month ERR falling below 1.0 for the second time in six months, this marks the trigger for the 11th bear market signpost. BofA’s ERR rule is triggered when, over a six-month window, all of the following criteria are met: 1) the one-month ERR falls from above 1.0 to below 1.0; 2) the one-month ERR is below 1.0 for two or more months; and 3) the three-month ERR falls below 1.1 for at least one month. Incidentally, the hit rate of the “ERR” bear market indicator, meaning its historical accuracy in predicting a bear market is 100%, the only question is how long it takes. The last time this trigger was set was mid-2003, and here is the punchline from Bank of America:
This post was published at Zero Hedge on Dec 21, 2017.