FactSet Research Systems Inc is trading 4.1% down at $219.00 today, extending a multi-day slide. - The decline follows Rothschild & Co Redburn's downgrade of FactSet (FDS) from Neutral to Sell, with a reduced price target of $215. - The analyst cited concerns over the diminishing dominance of FactSet's terminal due to a shift towards fragmented data consumption models, and pressures from AI and data disintermediation. - This occurs as broader U.S. indices are trading higher, highlighting stock-specific pressure on FactSet.