Chapter 35: Futures Option Strategies for Futures Spreads 705 there is a major difference between the futures option calendar spread and the stock option calendar spread. That difference is that a calendar spread using futures options involves two separate underlying instruments, while a calendar spread using stock options does not. When one buys the May soybean 600 call and sells the March soybean 600 call, he is buying a call on the May soybean futures contract and selling a call on the March soybean futures contract. Thus, the futures option calendar spread involves two separate, but related, underlying futures contracts. However, if one buys the IBM May 100 call and sells the IBM March 100 call, both calls are on the same underlying instrument, IBM. This is a major difference between the two strategies, although both are called "calendar spreads." To the stock option trader who is used to visualizing calendar spreads, the futures option variety may confound him at first. For example, a stock option trader may conclude that if he can buy a four-month call for 5 points and sell a two-month call for 2 points, he has a good calendar spread possibility. Such an analysis is mean­ ingless with futures options. If one can buy the May soybean 600 call for 5 and sell the March soybean 600 call for 3, is that a good spread or not? It's impossible to tell, unless you know the relationship between May and March soybean futures contracts. Thus, in order to analyze the futures option calendar spread, one must not only ana­ lyze the options' relationship, but the two futures contracts' relationship as well. Simply stated, when one establishes a futures option calendar spread, he is not only spreading time, as he does with stock options, he is also spreading the relationship between the underlying futures. Example: A trader notices that near-term options in soybeans are relatively more expensive than longer-term options. He thinks a calendar spread might make sense, as he can sell the overpriced near-term calls and buy the relatively cheaper longer­ term calls. This is a good situation, considering the theoretical value of the options involved. He establishes the spread at the following prices: Soybean Trading Contract Initial Price Position March 600 call 14 Sell 1 May 600 call 21 Buy 1 March future 594 none May future 598 none The May/March 600 call calendar spread is established for 7 points debit. March expiration is two months away. At the current time, the May futures are trad­ ing at a 4-point premium to March futures. The spreader figures that if March