{"updated": "2026-04-19", "ticker": "QQQ", "note": "QQQ 价格/总回报来自 yfinance；回购率来自 top-25 成分股 yfinance 年度现金流加权聚合。", "buybackCoverage": "6 年有回购数据（yfinance 年报 cashflow 仅回溯 4 年）", "series": [{"year": 2000, "priceReturn": -36.11, "dividendReturn": 0.0, "buybackYield": null, "totalReturn": -36.11}, {"year": 2001, "priceReturn": -33.34, "dividendReturn": 0.0, "buybackYield": null, "totalReturn": -33.34}, {"year": 2002, "priceReturn": -37.37, "dividendReturn": 0.0, "buybackYield": null, "totalReturn": -37.37}, {"year": 2003, "priceReturn": 49.61, "dividendReturn": 0.06, "buybackYield": null, "totalReturn": 49.67}, {"year": 2004, "priceReturn": 9.49, "dividendReturn": 1.05, "buybackYield": null, "totalReturn": 10.54}, {"year": 2005, "priceReturn": 1.23, "dividendReturn": 0.34, "buybackYield": null, "totalReturn": 1.57}, {"year": 2006, "priceReturn": 6.81, "dividendReturn": 0.33, "buybackYield": null, "totalReturn": 7.14}, {"year": 2007, "priceReturn": 18.67, "dividendReturn": 0.36, "buybackYield": null, "totalReturn": 19.03}, {"year": 2008, "priceReturn": -41.94, "dividendReturn": 0.21, "buybackYield": null, "totalReturn": -41.73}, {"year": 2009, "priceReturn": 53.83, "dividendReturn": 0.85, "buybackYield": null, "totalReturn": 54.68}, {"year": 2010, "priceReturn": 19.04, "dividendReturn": 1.1, "buybackYield": null, "totalReturn": 20.14}, {"year": 2011, "priceReturn": 2.52, "dividendReturn": 0.96, "buybackYield": null, "totalReturn": 3.48}, {"year": 2012, "priceReturn": 16.66, "dividendReturn": 1.45, "buybackYield": null, "totalReturn": 18.11}, {"year": 2013, "priceReturn": 35.05, "dividendReturn": 1.58, "buybackYield": null, "totalReturn": 36.63}, {"year": 2014, "priceReturn": 17.38, "dividendReturn": 1.8, "buybackYield": null, "totalReturn": 19.18}, {"year": 2015, "priceReturn": 8.34, "dividendReturn": 1.1, "buybackYield": null, "totalReturn": 9.44}, {"year": 2016, "priceReturn": 5.92, "dividendReturn": 1.18, "buybackYield": null, "totalReturn": 7.1}, {"year": 2017, "priceReturn": 31.47, "dividendReturn": 1.19, "buybackYield": null, "totalReturn": 32.66}, {"year": 2018, "priceReturn": -0.96, "dividendReturn": 0.83, "buybackYield": null, "totalReturn": -0.13}, {"year": 2019, "priceReturn": 37.83, "dividendReturn": 1.13, "buybackYield": null, "totalReturn": 38.96}, {"year": 2020, "priceReturn": 47.57, "dividendReturn": 0.84, "buybackYield": null, "totalReturn": 48.41}, {"year": 2021, "priceReturn": 26.81, "dividendReturn": 0.61, "buybackYield": 0.18, "totalReturn": 27.42}, {"year": 2022, "priceReturn": -33.07, "dividendReturn": 0.49, "buybackYield": 1.16, "totalReturn": -32.58}, {"year": 2023, "priceReturn": 53.79, "dividendReturn": 1.07, "buybackYield": 0.85, "totalReturn": 54.86}, {"year": 2024, "priceReturn": 24.84, "dividendReturn": 0.74, "buybackYield": 0.95, "totalReturn": 25.58}, {"year": 2025, "priceReturn": 20.16, "dividendReturn": 0.61, "buybackYield": 1.06, "totalReturn": 20.77}, {"year": 2026, "priceReturn": 5.62, "dividendReturn": 0.14, "buybackYield": 0.81, "totalReturn": 5.76}], "summary": {"startYear": 2000, "endYear": 2026, "years": 27, "avgPriceReturn": 11.48, "avgDividendReturn": 0.74, "avgBuybackYield": 0.83, "avgTotalReturn": 12.22, "positiveTotalYears": 21, "bestYear": {"year": 2023, "priceReturn": 53.79, "dividendReturn": 1.07, "buybackYield": 0.85, "totalReturn": 54.86}, "worstYear": {"year": 2008, "priceReturn": -41.94, "dividendReturn": 0.21, "buybackYield": null, "totalReturn": -41.73}}}