Costco (NASDAQ:COST) doesn't do surprises. Same rotisserie chicken, same $1.50 hot dog, year after year. So, when the stock barely moved after August net sales climbed 9.9% to $23.7 billion, that's no surprise. It's growing fastest online: Digital comparable sales rose 17.9% for the month, more than double the 8.4% gain in total comparable sales. That gap shows the membership model is squeezing more spend from existing shoppers, on top of whatever new warehouses add. The Stock Advisor recommendation by Team Hidden Gems is outperforming the S&P 500 by 34% over the past five years.
- A gap that's held all year: This isn't a one-month fluke. Digital comparable sales grew 20.7% for the full fiscal year. Total comparable sales rose 6.6% over the same stretch. Both figures are adjusted for gas prices and currency. Costco now runs 939 warehouses worldwide, and its online channel is growing on top of that footprint.
- Watch the ratio, not the headline number: The tell for investors is whether digital comps keep growing at roughly double the pace of total comps in the months ahead. If that spread holds, Costco is genuinely changing how members shop. If it narrows, credit a strong month more than a lasting shift.