Hunter x Hunter (2011)

S1E48 Very x Sharp x Eye

Gon, Killua, and Leorio are on a mission to gather enough cash to purchase Greed Island. While navigating the market, Gon discovers a method for spotting valuable goods. Their strategy is to buy items at a low price and sell them for a profit, but they soon find themselves competing with another bidder who is snatching up everything they’re interested in.