This study provides evidence of the importance of a well-defined and functioning spot market for the success of the associated futures market. The United States (US) spot market for nonfat dry milk has several distinct pricing indices, whereas the New Zealand (NZ) market has a single spot reference price. Our analysis of hedging effectiveness and hedge ratio persistence shows that none of the US spot market indices may be hedged effectively with the Chicago Mercantile Exchange nonfat dry milk futures at short hedging horizons, whereas the NZ Stock Exchange whole milk powder futures contract is an effective hedge for the Global Dairy Trade spot pricing benchmark. Four important dimensions of spot market design are identified -timeliness, market-based measurement, forward-spot separation, and inclusiveness.