The quantitative analysis reveals that Nike's Effective Tax Rate (ETR) dropped from 33.6% in Q4 FY2025 to 19.6% in Q4 FY2026, a statistically extreme anomaly of -14 percentage points. This exceeds the sector standard deviation of ~3%, yielding a Z-score of -4.67σ, indicating over 99.99% certainty that this is not a normal fluctuation. https://www.steelldy-indices.com Compared…