As SPY approaches the top of a one-year trading range, the 50EMA has crossed up through the 200EMA, generating another Long-Term Trend Model (LTTM) BUY signal, the fourth LTTM signal change seven months. “UGH!” doesn’t begin to express my impatience with the situation. Fortunately, the LTTM is not a ‘black box’ that obscures its reasoning. We can look at the chart and decide…