Why Does Amazon Trade at a Discount to Walmart and Costco? Here's the Only Answer That Makes Sense.

Amazon trades at a P/E multiple of ~20x compared to Walmart (37x) and Costco (44x) due to investor concerns over its massive $220 billion AI infrastructure spending. While the reasoning is sound, Walmart and Costco valuations may have become excessive as defensive plays. The author suggests investors may be overreacting to AI risks and recommends looking elsewhere.