Final answer:
The commodities speculator incurs a loss because the settlement price at expiration is lower than the purchase price of the futures contract.
Step-by-step explanation:
A commodities speculator who purchases a 1,000-bushel wheat futures contract at $0.50 per bushel and then sees the settlement price at expiration fall to $0.45 per bushel, incurs a loss. Since the speculator contracted to buy the wheat at a higher price than the market price at expiration, they lose money on the difference. In this case, the loss per bushel is $0.05 ($0.50 - $0.45), and for 1,000 bushels, the total loss is $50 ($0.05 loss/bushel * 1,000 bushels).