TTEC Holdings (NASDAQ:TTEC) lowers FY2026 Adj EPS guidance from $1.06-$1.32 to $0.79-$0.99 vs $1.16 analyst estimate. Lowers FY2026 sales outlook from $2.005 billion-$2.055 billion to $1.940 billion-$1.990 billion vs $2.029 billion estimate.