996 SIS (Stock Index return Security) (continued) track record, 598, 599 trading at discount to cash value, 598-600 trading at discount to guarantee price, 600-601 60/40 rule, 919-920 SPAN (Standard Portfolio Analysis of Risk), 514-515, 667-671 advantages,667 example, 668, 669, 670 how it works, 667-671 maintenance margin, 667 purpose, 667 risk array, 667, 668, 669 Speculating in futures contracts, 655-656 Splitting quote, 171 Splitting strikes, 325-328 (see also Synthetic stock positions) Spot/spot price for futures contracts, 658 Spread, diagonalizing, 236-241 advantage,236,241 backspreads,240-241 even-money spread, 240 bear spread, 239-240 bull spread, 236-239 often improvement over normal bull spread, 239 definition, 236 for any type of spread, 241 Spreads, 76, 168-171 (see also under particular head) backspread,232-235 diagonal, 240-241 bear, using call options, 186-190 bull, 110-111, 113-116, 117, 172-185 butterfly, 200-209 calendar, 116-117, 191-199 categories, three, 169 definition, 168 diagonal, 169, 236-241 (see also Spreads, diagonalizing) even money, 240 horizontal, 169 using LEAPS, 403-409 (see also LEAPS) "leg" into, 171 out of, 180, 207 out-of-the-money call spread, 222-225 ratio call, 210-221 reverse, 230-235 reverse calendar, 230-232 reverse ratio, 232-235 unequal tax treatment on, 929-930 vertical, 169 Spread order, 169-171 Spreads combining calls and puts, 336-357 butterfly spread, 336-338 arbitrageur, role of, 338 box spread, 338 commissions high, 338 Index equivalent of completely protected straddle write, 338 establishing, four ways for, 336-338 striking prices, three, 336 calendar combination, 345-348, 353-354, 356-357 superior to calendar straddle, 349-350 calendar straddle, 348-350, 354, 356-357 as neutral strategy, 349 criteria for, three, 354 inferior to calendar combination, 349-350 diagonal butterfly spread, 350-353, 354-355, 356-357 criteria, four, 355 legging out, 351-352 follow-up action for bull or bear spreads, 341-344 option purchase and spread, combining, 339-341 bearish scenario, 341, 342 bullish scenario, 339-340, 342 selecting, 353-356 criteria, five, 353-354 summary, 356-357 Standard Portfolio Analysis of Risk (SPAN), 514-515 Standard & Poor (S&P): Depository Receipt (SPDR), 637-638 expiration, 510-511 100 Index (OEX), 497, 500-501, 582-583 400 Index, 497 500 Futures, 532 500 Index (SPX), 497, 502, 507, 583, 584 Standard & Poor's Stock/Bond Guide, 88 Stock: buying below its market price, 299-300 underlying, price of as related to option price, 9-10 Stock index hedging strategies, 531-578 follow-up strategies, 557-559 rolling to another month, 557-559 impact on stock market, 561-565 "circuit breaker" of NYSE, 562 at expiration, 564-565 before expiration, 561-563 portfolio insurance, 563-564 regulatory bodies, concern of, 562 trading ban, 562 index, simulating, 566-574 hedge, monitoring, 572-573 high-capitalization stocks, using, 566-571 largest-capitalization stocks, four, 567 options instead of futures, using, 573-57 4 regression analysis, 566 tracking error risk, 571-572 index arbitrage, 547-556 commissions, 552-554 computerized method of order entry, 555-556