S&P downgraded Meta's outlook from stable to negative, citing high capex and negative free cash flow; META fell 15% in October, its worst month in four years (Jonathan Vanian/CNBC)

Jonathan Vanian / CNBC: S&P downgraded Meta's outlook from stable to negative, citing high capex and negative free cash flow; META fell 15% in October, its worst month in four years  —  Meta's outlook has been revised downward by S&P Global Ratings on concerns surrounding cash flow and AI spending.