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commodities vs commodity futures
 
| Is reading 48 about investing in commodities or commodity futures? It seems as if the terms are used interchangeably. P118 says that the sources of return for a collateralized futures position are roll yield, collateral yield and spot price return. I understand roll and collateral yield. But how are we making a return on the spot price when we only own the future? A simple example would be appreciated. |   
 
 
 
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