Days PH PH/NoX 2 3 4 5 6 7 8 9 10 Days
2 $164.01 $174.66 $10.65 $66.03 $86.27 $108.63 $120.35 $132.06 $183.20 $186.39 $189.57 2
3 $219.39 $230.04 $10.65 $30.89 $53.25 $64.97 $76.68 $127.82 $131.01 $134.19 3
4 $234.30 $250.28 $15.98 $38.34 $50.06 $61.77 $112.91 $116.10 $119.28 4
5 $235.37 $272.64 $37.27 $48.99 $60.70 $111.84 $115.03 $118.21 5
6 $236.43 $284.36 $47.93 $59.64 $110.78 $113.97 $117.15 6
7 $237.50 $296.07 $58.57 $109.71 $112.90 $116.08 7
8 $240.69 $347.21 $106.52 $109.71 $112.89 8
9 $243.89 $350.40 $106.51 $109.69 9
10 $247.08 $353.58 $106.50 10
Average cost of extra days if you NEED X (expiring) and BUY Y (non-expiring)
  Buy
    3 4 5 6 7 8 9 10
Need 2 $66.03 $43.14 $36.21 $30.09 $26.41 $30.53 $26.63 $23.70
3   $30.89 $26.63 $21.66 $19.17 $25.56 $21.84 $19.17
4     $38.34 $25.03 $20.59 $28.23 $23.22 $19.88
5       $48.99 $30.35 $37.28 $28.76 $23.64
6         $59.64 $55.39 $37.99 $29.29
7           $109.71 $56.45 $38.69
8             $109.71 $56.45
9               $109.69