Walmart says shoppers are 'value hacking' to stretch their dollars

• When shoppers buy store-brand pasta and premium sauce, Walmart says they're "value hacking."
• The retail giant said consumers are using the strategy to save a few bucks on their grocery bills.
• It's an approach that has proven popular with Costco members and the Kirkland Signature brand.

If you've ever tried to save a few bucks by picking the store-brand noodles to go with your nice jar of Rao's marinara, you're part of a current retail trend.

Walmart's head of investor relations, Stephanie Wissink, told analysts at TD Cowen that the retail giant was seeing more customers do exactly that.