With Apple’s stock down 10% in August, it’s time to buy shares in the world’s most valuable company, maker of Macs, iPad, iPhones, Apple Watches, and purveyor of Apple TV+, Apple Card, Apple Arcade, iCloud storage, AppleCare, and much more. Daniel Sparks for The Motley Fool: While it always makes sense to have some cash, cash equivalents, and lower-risk investments in a portfolio, this may not be the time to double down on cash, despite the attractive yields in T-bills. Indeed, August’s decline has already surfaced some great opportunities. Take Apple stock, for instance. The iPhone maker’s shares have pulled back 10%… Flipping the price-to-earnings metric upside down, you’ll get earnings yield. Doing this quickly puts into perspective why stocks…