Monday, October 24, 2011

Sum of Delta: –2.75 to make trade decision; 18K intraday

 

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Call 115 2 0.9672 1.9344  
  117 2 0.9297 1.8594  
  121 -6 0.6733 -4.0398  
          -0.246
Put Dec 130 1 -0.7376 -0.7376  
  Dec 126 2 -0.6063 -1.2126  
  Nov 128 1 -0.7239 -0.7239  
  Oct 123 1 -0.5654 -0.5654  
  Oct 121 -1 -0.3267 0.3267  
  Oct 120 -1 -0.2293 0.2293  
  Oct 116 -3 -0.0493 0.1479  
  Oct 115 -1 -0.0328 0.0328  
          -2.5028
          -2.7488

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Covered 1 Oct 121 call short because aggregated delta is –2.75.  Why just one? It’s because DP is not tested.  And because SPY maybe bounce back in this narrow range day (yesterday and the day before were big swing).

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