eBay shares fall 9% as weak holiday profit forecast and U.S. tariff changes cloud outlook despite strong Q3 results. EBay Shares Slide Nearly 9% as Holiday-Quarter Profit Forecast Misses Expectations eBay shares tumbled nearly 9% after the company issued a weaker-than-expected profit forecast for the holiday quarter, overshadowing an otherwise strong third-quarter performance. The e-commerce giant warned of persistent macroeconomic pressures and new U.S. trade rules that are