Ray Cao has sold over $1.4 million in goods on StockX.Brian Tran Ray Cao began reselling sneakers and apparel at 17 to help get his family out of debt. Cao mostly now sells on StockX and has eclipsed $1.4 million in sales on the marketplace. He began reselling Yeezys and Supreme products but has shifted to flipping readily available items. Ray Cao helped get his family out of $200,000 in debt by turning to resale as a teenager.