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Buyer's Call

Derivatives & Options · intermediate · CC-BY-4.0

A buyer's call (also known as 'call on goods' or 'on call' purchase) is a physical commodity transaction in which the buyer has the right to fix or 'price' the futures hedge at any time before the agreed 'call' deadline, with the actual purchase price determined by the futures price at the time the buyer elects to fix — plus or minus a negotiated basis differential. It is a common mechanism in agricultural and soft commodity markets.

Key takeaways

Explanation

Buyer's call transactions are a fundamental feature of agricultural commodity marketing, reflecting the need for merchandisers, food processors, and grain elevators to manage both physical supply chains and price risk simultaneously. The mechanics are as follows: a grain elevator agrees to sell 100,000 bushels of soybeans to a soybean processor on a 'buyer's call' basis at 'CBOT November futures + $0.15/bushel.' The processor takes delivery of the soybeans immediately (or agrees to a delivery date) but reserves the right to name — or 'call' — the futures price at any time during the agreed call period, which may be one week, one month, or linked to a specific futures delivery period.

Once the buyer calls the futures price, the purchase price is locked in: if the buyer calls when November futures are at $12.50, the purchase price is $12.65/bushel. If the buyer waits and calls when November futures are $11.80 after a weather-induced sell-off, the purchase price is $11.95/bushel. The basis differential ($0.15) was negotiated upfront and reflects local supply-demand conditions, transportation costs, and the seller's carrying costs; only the futures level is variable.

From the seller's perspective, the buyer's call creates a pricing exposure that must be managed. Until the buyer calls the price, the elevator is long physical soybeans but has no offsetting short futures position — it is fully exposed to a decline in futures prices that would reduce its eventual revenue. Most professional grain merchandisers hedge this exposure by immediately selling futures against any buyer's call inventory, establishing the futures leg of the transaction and effectively locking in the basis as their profit margin while passing the flat price risk back to the buyer.

Buyer's calls are conceptually related to Asian options and lookback options in structured products: the buyer has optionality over when to fix the price, which has a measurable economic value. Unlike an explicit option, however, the buyer's call does not involve an explicit option premium — the seller's compensation for granting this optionality is embedded in the basis spread negotiated at inception. In volatile commodity markets, the effective cost of the buyer's call option can be significant, and sellers who do not adequately account for this optionality in their basis negotiations may systematically under-earn on buyer's call transactions.

Formula

Buyer's Call Price = Futures Price (at time of call) ± Basis Differential
Seller's Basis Profit = Buyer's Call Price − Seller's Cost Basis

Example

A coffee roaster needs to purchase 250 metric tons of Colombian coffee for delivery in March. The roaster agrees to a buyer's call transaction with a Colombian coffee exporter at ICE March arabica futures minus $0.08/lb basis (reflecting quality differential and logistics). The current March futures price is $1.80/lb. The roaster has until February 15 to call the price. Over the next three weeks, futures decline to $1.62/lb on a favorable Brazilian weather forecast. The roaster calls the price on January 20 when futures are at $1.62/lb, fixing the purchase price at $1.62 − $0.08 = $1.54/lb — compared to $1.80 − $0.08 = $1.72/lb if they had fixed at inception. On 250 MT (≈550,000 lbs), the timing decision saves approximately $99,000 in purchase cost. The exporter, who hedged by selling March futures immediately upon agreeing to the buyer's call, captures the $0.08 basis as their merchandising margin regardless of price direction.

Related terms

Basis Call Option Cost Of Carry Delivery Delivery Notice Expiration Date Futures Price Margin Option Physical Commodity Premium Rainbow Option