SPY Options History — May 2013

In May 2013, SPY traded between $158.20 and $167.11. ATM implied volatility averaged 12.0%, placing in the 15.5% IV rank vs the trailing year. The 30-day expected move averaged 3.5%. IV traded above realized volatility by 0.6% (HV 20d: 11.4%). Max pain ranged from $159.00 to $166.00. Net GEX was positive for 14 of 22 trading days. Term structure was in contango for 15 of 22 days. Put/call ratio averaged 1.45.

Notable Days

  • 2013-05-22: Highest Volume — 4,434,421 contracts
  • 2013-05-31: Largest IV spike — 12.6% change
  • 2013-05-31: Highest IV Rank — 29.2%
  • 2013-05-31: Largest Expected Move — 4.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$164.21$158.20$167.11$158.20$163.46
Max Pain$161.29$159.00$166.00$159.00$162.00
ATM IV12.0%10.7%14.7%12.9%14.7%
Expected Move3.5%3.1%4.3%3.7%4.3%
HV 20d11.4%7.9%15.7%15.3%9.5%
HV 60d11.6%10.9%12.1%11.8%11.4%
IV Rank15.5%8.6%29.2%19.7%29.2%
IV Percentile30.4%7.5%67.5%38.9%67.5%
Term Structure0.4%-0.5%1.2%0.6%-0.5%
VWIV12.9%11.2%15.3%14.0%15.3%
Skew 25d3.2%2.4%4.5%4.2%4.5%
Skew 10d6.2%4.3%11.3%8.0%11.3%
Call IV 25d10.9%9.4%13.0%11.0%13.0%
Put IV 25d14.0%12.2%17.5%15.3%17.5%
Bid-Ask Spread %4.511.907.356.065.17
Gamma HHI0.060.040.080.050.08
Net GEX815.6M-5.73B3.89B-1.66B-5.73B
Net DEX-36.18B-67.81B10.31B-8.47B10.31B
Net VEX-313.1M-367.8M-271.2M-305.2M-367.8M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.451.012.121.292.12
Total Volume2,663,050.7731,436,9294,434,4212,293,0753,147,374
Total OI22,082,442.31819,474,82125,634,14920,142,14323,291,628

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2013-05-01$158.20$159.0012.9%3.7%15.3%19.7%14.0%4.2%0.6%-1.66B-8.47B-305.2M1.296.06N/AN/A1,002,8641,290,2116,800,19813,341,945
2013-05-02$159.76$159.0011.6%3.3%15.6%13.1%13.5%3.7%0.3%2.57B-26.04B-296.0M1.344.71N/AN/A895,4001,196,0217,168,39613,634,481
2013-05-03$161.37$159.0011.2%3.2%15.7%11.0%11.8%3.1%0.3%3.89B-45.42B-277.0M1.397.35N/AN/A1,383,1071,923,1817,303,17914,096,381
2013-05-06$161.84$161.0010.8%3.1%15.5%9.2%12.3%3.3%0.8%2.05B-38.11B-271.4M1.205.59N/AN/A652,122784,8076,814,56513,555,299
2013-05-07$162.58$161.0010.7%3.1%15.6%8.7%11.3%3.2%0.9%2.62B-43.62B-271.2M1.375.64N/AN/A787,0141,078,5486,968,68513,689,972
2013-05-08$163.35$161.0011.0%3.2%15.1%10.3%11.3%3.0%0.9%2.82B-49.60B-272.6M1.015.12N/AN/A1,313,8661,328,3267,172,91214,100,529
2013-05-09$162.95$162.0011.1%3.2%15.2%10.8%11.5%3.1%1.0%2.18B-44.55B-293.3M1.744.47N/AN/A952,1591,655,0437,511,38514,758,021
2013-05-10$163.45$163.0010.7%3.1%15.1%8.6%11.2%2.8%1.2%2.34B-47.78B-299.1M1.495.93N/AN/A880,7271,313,6247,750,31815,318,087
2013-05-13$163.57$163.0011.1%3.2%11.8%10.7%11.8%2.7%0.9%2.37B-47.08B-299.3M1.144.99N/AN/A827,994946,4967,717,84214,955,036
2013-05-14$165.29$163.0011.4%3.3%11.1%12.3%11.9%2.4%0.9%3.15B-59.69B-297.4M1.064.42N/AN/A1,630,4481,732,7257,936,05615,180,275
2013-05-15$165.92$163.0011.4%3.3%9.0%12.2%12.0%2.5%0.7%3.04B-65.25B-295.7M1.234.69N/AN/A1,608,6401,981,4188,308,77715,861,549
2013-05-16$165.34$0.0012.0%3.4%8.5%15.5%13.3%3.0%0.4%1.37B-55.79B-315.6M1.336.94N/AN/A1,242,3611,647,6678,557,22616,469,601
2013-05-17$166.90$166.0011.2%3.2%8.6%11.3%12.0%2.6%0.5%2.44B-67.81B-311.3M1.486.91N/AN/A1,527,4192,263,5848,670,77016,963,379
2013-05-20$167.11$160.0011.9%3.5%8.6%14.8%12.9%2.4%0.1%1.73B-40.88B-306.4M1.201.90N/AN/A1,104,4901,320,3946,991,02312,483,798
2013-05-21$167.07$160.0012.6%3.6%8.3%18.2%13.3%2.5%0.0%1.33B-39.20B-325.4M1.492.29N/AN/A872,5641,300,7787,285,71812,934,197
2013-05-22$166.09$160.0013.0%3.7%8.8%20.1%13.4%2.5%-0.1%-1.01B-27.94B-341.5M1.442.19N/AN/A1,817,0352,617,3867,557,99013,550,114
2013-05-23$165.55$160.0012.9%3.7%9.0%20.0%13.9%3.0%-0.1%-2.80B-19.43B-349.1M1.642.23N/AN/A1,250,1822,054,3717,926,94214,053,991
2013-05-24$165.60$161.0012.7%3.7%8.8%19.1%13.9%3.3%-0.2%-715.3M-19.58B-356.0M1.662.43N/AN/A1,052,2051,744,0088,090,33814,382,144
2013-05-28$166.05$160.0013.3%3.8%8.6%21.8%14.7%3.7%-0.2%-28.8M-25.31B-341.9M1.783.57N/AN/A961,9411,708,9737,743,60013,799,685
2013-05-29$165.21$162.0013.6%3.9%9.0%23.5%14.3%3.9%-0.3%-2.65B-13.75B-348.0M1.643.53N/AN/A750,8951,234,0597,903,93114,399,578
2013-05-30$165.87$162.0013.1%3.8%7.9%20.8%14.2%4.0%-0.3%-1.37B-21.00B-346.8M1.773.12N/AN/A651,6961,152,9948,128,73714,685,453
2013-05-31$163.46$162.0014.7%4.3%9.5%29.2%15.3%4.5%-0.5%-5.73B10.31B-367.8M2.125.17N/AN/A1,008,8722,138,5028,234,61915,057,009