NEW YORK (TheStreet) -- Here are five ETFs to watch this week.PowerShares QQQ ( QQQ) Apple ( AAPL) was talk of the town for another week as analysts, market commentators, and consumers anxiously awaited the arrival of the company's new iPad. The market appears confident that this product will be another big hit and, in response, shares of the Cupertino, California-based titan surged as high as $600. Representing nearly 20% of QQQ's portfolio, Apple's performance weighs heavily on the fund's day-to-day action. They represent only a minor slice of QQQ's portfolio compared to Apple, but Adobe ( ADBE) and Oracle ( ORCL) are also worth watching this week. The software giants will step up to the earnings plate on Monday and Tuesday respectively. Investors looking for heavier exposure to the pair should turn to the iShares S&P North American Technology-Software Index Fund ( IGV).