Amazon (AMZN) reported stronger-than-expected first-quarter 2025 results. The online behemoth outpaced earnings and revenue estimates but offered a muted second-quarter operating income guidance on tariff uncertainty.   Shares of AMZN dropped as much as 5% in aftermarket hours on elevated volume, putting ETFs having a substantial allocation to this online behemoth in focus. These include ProShares Online Retail ETF (ONLN) , Fidelity MSCI Consumer Discretionary Index ETF (FDIS) , Vanguard Consumer Discretion ...