The consumer discretionary sector fell today amid a broader market downturn led by a multi-day sell-off in technology and semiconductor stocks over valuation concerns. This risk-off sentiment was compounded by a significant, direct negative catalyst from within the sector: Netflix (NFLX) shares tumbled after its third-quarter revenue and earnings forecast missed analyst expectations. Heightened geopolitical tensions between the U.S. and Iran also contributed to overall negative market sentiment.