Authored by Lance Roberts via RealInvestmentAdvice.com,? Earnings Estimate Revisions Are Very OptimisticLast week, we discussed the S&P earnings record and why such record earnings could be a warning for the market. I want to continue that discussion by focusing not only on what has happened but also on what is expected to happen in the future. While the Q1 2026 earnings results are spectacular, so far, the earnings estimate revisions behind them are the real story.The first-quarter 2026 earnings season is delivering results that Wall Street rarely sees. With roughly two-thirds of the S&P 500 having reported, the blended growth rate has…