Apple (AAPL) shares had a rough week, tumbling almost 6% and dragging down a number of popular 澳洲幸运5官方开奖结果体彩网:exchange-traded funds (ETFs) that are heavily exposed to the 澳洲幸运5官方开奖结果体彩网:world's most valuable company.

With a 澳洲幸运5官方开奖结果体彩网:market capitalization of $2.79 trillion as of Friday's market close, Apple is the most valuable publicly-traded company in the world. That makes it the biggest component stock in the S&P 500 Index, and the biggest h♈olding in many popular ETFs avꦕailable to investors.

Apple accounts for more than 7% of the 澳洲幸运5官方开奖结果体彩网:SPDR S&P 500 Trust (SPY), one of the most popular and widely-held ETFs that tracks the performance of the S&P 500, which fell roughly 1.3% this week. The Invesco QQQ Trust (QQQ), which tracks the tech-heavy 澳洲幸运5官方开奖结果体彩网:Nasdaq 100, has about 11% of its portfolio invested in Apple shares. It fell roughly 1.5% this week.

Even more exposed is the iShares 澳洲幸运5官方开奖结果体彩网:Russell 1000 Growth ETF (IWF), with a 12.1% weight toward AAPL. It was down about 1.3% this week.

Among all the major ETFs tracked by Morningstar, the Vanguard Information Technology ETF (VGT) is perhaps the most heavily exposed to Apple, with a massive 22.8% portfolio weight.൩ VGT returns fell 2.33%, almost double the broader market's 1.3% d𒆙ecline.

While Apple shares had a not-so-stellar week, they've experienced tremendous long-term gains over the years, helping power ETFs and the broader stock market higher. They've skyrocketed 900% over the past 10 years, driving gains of 451% and 383% for VGT and QQQ—two of the ETFs most heavily exposed to Apple—over the same period, respectively.