Numerator CEO Eric Belcher breaks down Amazon’s (AMZN) Prime Day, noting its shift from a high-end electronics event to a broad-based shopping moment. He highlights that more than 60 million U.S. households are expected to participate, with spending tilting toward necessities like groceries amid inflation. Belcher also points to the rise of year-round discounting and agentic shopping as consumers use smarter tools to find deals.