Alibaba Group Holding Limited BABA Historical MegaIPO Precedents Offer Context for SpaceXs Upcoming 175 Trillion Debut SLNO Soleno Therapeutics tops Q4 2025 EPS estimates by 103 percent shares edge 021 percent lower today Fidelity MSCI Consumer Discretionary Index ETF FDIS Assessing Amazons PostQ4 Dip Exposure and DipBuying Viability