| OPTION VALUE CALCULATOR |
| CURRENT PRICE | | | BLACK SCHOLES CALL VALUE (a) | | 2.463793 | | 2.463799 |
| OF STOCK | 43.075 |
| | | | HEDGING THE OPTION |
| STRIKE PRICE | 43.000 | | STOCK POSITION (b) | | 22.962741 |
| | | | AMOUNT BORROWED (c) | | 20.498948 |
| RISK-FREE RATE | 0.000 | | LEVERAGE RATIO (b/a) (d) | | 9.320078 |
| VOLATILITY | 0.200 | | C_S (DELTA) | | 0.533087 |
| | | | C_SS (GAMMA) | | 0.065264 |
| TIME TO EXP | 0.500 | | DERIVATIVES C_Sigma (VEGA) | | 12.109417 |
| | | | -C_(T-t) (THETA) | | 2.421883 |
| CURRENT DATE | 04/09/12 | | C_r (RHO) | | 10.249474 |
| | | | C_X | | -0.476720 |
| EXP DATE | 04/14/12 |
| | | | IMPLIED VOLATILITY | | 0.24017 | | -2.4637988 |
| MARKET PRICE* | 2.950 | | TIME TO EXPIRATION | | 0.50000 | | 0.20000000 |
| | | | VALUE OF PUT: |
| | *OPTIONAL | | SAME STRIKE AND TIME TO EXP | | 2.388793 |
| 1.000 | 0.500 |
| 0.000 | 0.014 | | | d1 | 0.083033192672 |
| 1.000 | 0.500 | | | d2 | -0.058388163565 |
| | | | | | | | | | | | Implied Volatility Intermediate Calculations |
| | | | | | | | | 0.000000 | | | | | 0.000000 |
| | | | | | | | | 0.2000 | | | | | 0.2000 |
| | | | | | | 0.083 | -0.058 | 0.083033 | -0.058388 | | 0.083 | -0.058 | 0.083033 | -0.058388 |
| | | | | | | 0.083 | 0.058 | 0.083033 | 0.058388 | | 0.083 | 0.058 | 0.083033 | 0.058388 |
| | | | | | | 0.981 | 0.987 | 0.981129 | 0.986655 | | 0.981 | 0.987 | 0.981129 | 0.986655 |
| | | | | | | 1.174 | 1.197 | 1.174418 | 1.196998 | | 1.174 | 1.197 | 1.174418 | 1.196998 |
| | | | | | | 0.398 | 0.398 | 0.397569 | 0.398263 | | 0.398 | 0.398 | 0.397569 | 0.398263 |
| | | | | | | 0.533 | 0.523 | 0.533087 | 0.523280 | | 0.533 | 0.523 | 0.533087 | 0.523280 |
| | | | | | | 0.533 | 0.477 | 0.533087 | 0.476720 | | 0.533 | 0.477 | 0.533087 | 0.476720 |
| | | | | | | | | -2.463799 | 12.109417 | 12.109417 | | | -2.463799 | 12.109417 | 12.109417 |
| | | | | | | | | 0.075000 | -0.203461 | | | | 0.075000 | -0.203461 |
| | | | | | | | | -0.003461 | 0.000000 | 6.070305 | | | -0.003461 | 0.000000 | 6.070305 |
| | | | | | | | | 0.010000 | 6.070305 | | | | 0.010000 | 6.070305 |
| | | | | | | | | | | 0.000000 |
| | | | | | | | | 0.000000 |
| | | | | | | | | 0.2000 | | 0.000000 |
| | | | | | | ERROR:#REF! | -0.058 | ERROR:#REF! | -0.058388 | 43.075000 |
| | | | | | | ERROR:#REF! | 0.058 | ERROR:#REF! | 0.058388 | 0.000000 |
| | | | | | | ERROR:#REF! | 0.987 | ERROR:#REF! | 0.986655 |
| | | | | | | ERROR:#REF! | 1.197 | ERROR:#REF! | 1.196998 |
| | | | | | | ERROR:#REF! | 0.398 | ERROR:#REF! | 0.398263 |
| | | | | | | ERROR:#REF! | 0.523 | ERROR:#REF! | 0.523280 |
| | | | | | | ERROR:#REF! | 0.477 | ERROR:#REF! | 0.476720 |
| | | | | | | | | ERROR:#REF! | 12.109417 | 12.109417 |
| | | | | | | | | ERROR:#REF! | ERROR:#REF! |
| | | | | | | | | ERROR:#REF! | 0.000000 | ERROR:#REF! |
| | | | | | | | | 0.010000 | ERROR:#REF! |
| | | | 3.000000000000 |
| s | 43.07500 | 0.00174 |
| x | 43.00000 | 43.00000 |
| r | 0.00000 | | | 1.000000000000 | PRICE < S - PV(X) |
| t | 0.50000 | | | 2.000000000000 | PRICE > S |
| mp | 2.95000 | | | 3.000000000000 | 0.240173935890 |
| vol | d1 | d2 | f(x) | f'(x) |
| 50.00000 | 17.67772 | -17.67762 | 40.12500 | 25.00000 | 25.000000000000 |
| 25.000000000000 | 8.83893 | -8.83874 | 40.12500 | 12.500000000000 | 12.500000000000 |
| 12.500000000000 | 4.41961 | -4.41922 | 40.12457 | 6.250000000000 | 6.250000000000 |
| 6.250000000000 | 2.21010 | -2.20931 | 38.95759 | 3.125000000000 | 3.125000000000 |
| 3.125000000000 | 1.10564 | -1.10407 | 28.53833 | 1.562500000000 | 1.562500000000 |
| 1.562500000000 | 0.55400 | -0.55085 | 15.13505 | 0.781250000000 | 0.781250000000 |
| 0.781250000000 | 0.27937 | -0.27306 | 6.45319 | 0.390625000000 | 0.390625000000 |
| 0.390625000000 | 0.14442 | -0.13180 | 1.81500 | 0.195312500000 | 0.195312500000 |
| 0.195312500000 | 0.08167 | -0.05644 | -0.54297 | 0.097656250000 | 0.097656250000 |
| 0.292968750000 | 0.11199 | -0.09517 | 0.63811 | 0.048828125000 | 0.048828125000 |
| 0.244140625000 | 0.09641 | -0.07622 | 0.04800 | 0.024414062500 | 0.024414062500 |
| 0.219726562500 | 0.08890 | -0.06647 | -0.24739 | 0.012207031250 | 0.012207031250 |
| 0.231933593750 | 0.09263 | -0.07138 | -0.09967 | 0.006103515625 | 0.006103515625 |
| 0.238037109375 | 0.09451 | -0.07381 | -0.02583 | 0.003051757813 | 0.003051757813 |
| 0.241088867188 | 0.09546 | -0.07502 | 0.01109 | 0.001525878906 | 0.001525878906 |
| 0.239562988281 | 0.09499 | -0.07441 | -0.00737 | 0.000762939453 | 0.000762939453 |
| 0.240325927734 | 0.09522 | -0.07471 | 0.00186 | 0.000381469727 | 0.000381469727 |
| 0.239944458008 | 0.09510 | -0.07456 | -0.00275 | 0.000190734863 | 0.000190734863 |
| 0.240135192871 | 0.09516 | -0.07464 | -0.00045 | 0.000095367432 | 0.000095367432 |
| 0.240230560303 | 0.09519 | -0.07468 | 0.00071 | 0.000047683716 | 0.000047683716 |
| 0.240182876587 | 0.09518 | -0.07466 | 0.00013 | 0.000023841858 | 0.000023841858 |
| 0.240159034729 | 0.09517 | -0.07465 | -0.00016 | 0.000011920929 | 0.000011920929 |
| 0.240170955658 | 0.09517 | -0.07465 | -0.00001 | 0.000005960464 | 0.000005960464 |
| 0.240176916122 | 0.09518 | -0.07465 | 0.00006 | 0.000002980232 | 0.000002980232 |
| 0.240173935890 | 0.09518 | -0.07465 | 0.00002 | 0.000001490116 | 0.000001490116 |