Aldi is accelerating its U.S. rollout with a $9 billion investment aimed at reaching as many as 4,000 stores from Maine to California. The German discounter opened a flagship outlet on Manhattan’s 42nd Street this week, signaling a shift from its traditionally cautious expansion. Within months the chain expects to outnumber Kroger, the nation’s largest supermarket operator, significantly.

Food inflation has squeezed consumer budgets, giving Aldi an opening to undercut rivals as it did across Europe. Morgan Stanley data shows the discounter’s entry trims a competitor’s sales by roughly one percentage point within a ten‑mile radius. With market share now comparable to Walmart, Sam’s Club and Costco, the retailer’s lean model—six staff, cardboard‑shelf stocking and coin‑deposit carts—keeps prices low, significantly.

Aldi’s U.S. footprint still represents only about 4 percent of total grocery spend, but revenue of $30 billion last year grew at double‑digit rates, outpacing a sluggish market. The firm plans 50 new Colorado stores and eyes Arizona, Florida and other fast‑growing regions to hit its 3,200‑store target by 2028. It continues its aggressive placement near Walmart and other giants, forcing incumbents to defend shrinking margins.