650 ZYX ABX ZYX June 175P ABX June 1 80P Profit 165 168 10 12 +$1,000 170 173 5 7 +$1,000 Part V: Index Options and Futures Price at Expiration 175 180 185 178 183 188 0 0 0 2 0 0 +$1,000 0 0 This picture indicates that the position is neutral to bearish, since it makes money even if the indices are unchanged. However, contrast this with the situation in which the ZYX falls to a level 5 points below the ABX by expiration. Price at Expiration ZYX 165 170 175 180 185 ABX 170 175 180 185 190 ZYX June 175P 10 5 0 0 0 ABX June 1 80P 10 5 0 0 0 Profit 0 0 0 0 0 In this case, the spread has no potential for profit at all, even if the market colĀ­ lapses. Thus, even a bearish spread like this might not prove profitable if there is an adverse movement in the relationship of the indices. Finally, observe what happens if the ZYX rallies so strongly that it catches up to the ABX. Price at Expiration ZYX 165 170 175 180 185 ABX 165 170 175 180 185 ZYX June 175P 10 5 0 0 0 ABX June 1 80P 15 10 5 0 0 Profit +$2,500 +$2,500 +$2,500 +$2,500 +$2,500 These tables can be called "sliding scale" tables, because what one is actually doing is showing a different set of results by sliding the ABX scale over slightly each time while keeping the ZYX scale fixed. Note that in the above two tables, the ZYX results are unchanged, but the ABX has been slid over slightly to show a different result. Tables like this are necessary for the strategist who is doing spreads in options with different underlying indices or is trading inter-index spreads.