ATS Resume Optimization 2026: Real Q1 Pipeline Data, Not the 75% Myth

98% of Fortune 500 use ATS. The 75% rejection stat traces to a 2013 startup that closed without ever publishing methodology. The real Q1 2026 data: median resume scores 48/100, missing 52% of keywords. Optimization adds 17 points. Real data + the 5-rule optimization framework.