A researcher at Two Sigma Investments adjusted the hedge fund’s investing models without authorization, the firm has told clients, leading to losses in some funds, big gains in others and fresh regulatory scrutiny.

2026 Tri-Fold Smartphone Guide: Comparing Huawei Mate XT and Samsung Galaxy Z TriFold
As of 2026, the tri-fold smartphone market has evolved into a high-stakes duel between two distinct engineering philosophies: Huawei’s Z-shape





