SPY Options History — October 2015

In October 2015, SPY traded between $190.50 and $208.92. ATM implied volatility averaged 14.9%, placing in the 23.5% IV rank vs the trailing year. The 30-day expected move averaged 4.3%. IV traded below realized volatility by 3.5% (HV 20d: 18.4%). Max pain ranged from $197.00 to $202.00. Net GEX was positive for 12 of 22 trading days. Term structure was in contango for 14 of 22 days. Put/call ratio averaged 1.58.

Notable Days

  • 2015-10-02: Highest Volume — 4,090,792 contracts
  • 2015-10-15: Largest IV drop — 11.5% change
  • 2015-10-01: Highest IV Rank — 54.2%
  • 2015-10-01: Largest Expected Move — 6.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$202.22$190.50$208.92$190.50$208.38
Max Pain$199.57$197.00$202.00$198.00$202.00
ATM IV14.9%12.4%21.8%21.8%12.8%
Expected Move4.3%3.6%6.5%6.5%3.7%
HV 20d18.4%12.9%21.9%19.9%12.9%
HV 60d20.7%19.8%21.1%19.8%21.0%
IV Rank23.5%12.2%54.2%54.2%13.9%
IV Percentile65.9%43.3%94.8%94.8%50.0%
Term Structure0.1%-1.3%0.8%-0.2%0.8%
VWIV16.6%14.0%23.7%23.7%14.2%
Skew 25d5.3%4.6%6.8%6.8%4.7%
Skew 10d10.3%8.9%12.9%12.9%9.5%
Call IV 25d12.4%10.4%18.4%18.4%10.6%
Put IV 25d17.8%15.0%25.2%25.2%15.3%
Bid-Ask Spread %1.911.553.021.551.88
Gamma HHI0.040.030.080.040.05
Net GEX651.9M-4.17B4.50B-4.17B3.20B
Net DEX1.61B-29.54B61.88B61.88B-22.69B
Net VEX-334.4M-349.4M-322.2M-348.6M-340.5M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.581.022.371.851.02
Total Volume2,562,648.8181,480,5324,090,7921,598,4462,854,495
Total OI19,914,200.27317,240,29522,560,14619,504,21620,957,109

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2015-10-01$190.50$198.0021.8%6.5%19.9%54.2%23.7%6.8%-0.2%-4.17B61.88B-348.6M1.851.55N/AN/A561,7761,036,6706,806,90812,697,308
2015-10-02$194.48$198.0019.3%5.6%21.3%43.0%21.1%5.7%-0.1%-1.48B35.71B-349.4M1.701.69N/AN/A1,514,7082,576,0846,935,44713,010,767
2015-10-05$198.47$197.0017.3%5.1%21.9%34.3%19.1%6.0%0.1%-533.3M13.58B-337.6M1.283.02N/AN/A1,353,9531,729,8066,562,74312,436,166
2015-10-06$197.86$198.0017.2%5.0%20.6%33.6%19.2%5.9%0.1%-860.5M19.17B-341.9M1.761.73N/AN/A760,5921,340,4346,867,27512,780,906
2015-10-07$199.15$198.0016.6%4.9%20.0%31.0%18.2%5.7%0.2%140.3M10.70B-338.5M1.691.72N/AN/A1,004,3251,692,6876,979,57413,063,741
2015-10-08$201.11$198.0015.5%4.5%20.2%26.2%17.2%5.3%0.1%1.95B-2.34B-337.8M1.522.30N/AN/A1,330,0232,018,3957,095,42713,418,992
2015-10-09$201.18$198.0015.2%4.5%20.2%24.9%17.1%5.3%0.3%1.94B-1.87B-338.0M1.071.96N/AN/A1,291,8941,381,2047,231,14513,915,016
2015-10-12$201.46$199.0014.2%4.3%20.1%20.4%16.4%5.3%0.6%-142.9M1.97B-326.0M1.771.68N/AN/A607,3951,072,2576,957,74613,479,534
2015-10-13$200.24$199.0015.4%4.5%19.7%25.6%17.1%5.7%0.2%-1.35B11.62B-327.6M1.771.73N/AN/A867,4191,532,7787,054,14613,739,965
2015-10-14$199.11$200.0015.8%4.6%19.6%27.4%16.8%5.6%0.2%-3.08B23.25B-330.1M1.431.96N/AN/A1,014,9851,447,2917,336,24914,137,311
2015-10-15$202.30$200.0014.0%4.1%20.4%19.3%15.9%5.2%0.5%1.32B-4.82B-326.5M1.941.70N/AN/A1,023,9471,986,1757,573,94014,370,356
2015-10-16$203.15$200.0013.2%3.9%18.7%16.1%14.6%5.0%0.4%2.49B-12.34B-322.5M1.601.63N/AN/A1,226,0651,956,8117,804,69714,755,449
2015-10-19$203.15$200.0012.9%3.7%18.7%14.7%15.2%5.1%-0.0%-112.6M2.39B-322.2M1.742.70N/AN/A685,7831,196,2835,951,75411,288,541
2015-10-20$202.72$200.0013.9%4.0%17.3%18.9%14.8%5.3%-0.2%-586.1M6.24B-331.6M1.641.74N/AN/A559,766920,7666,211,30311,579,680
2015-10-21$201.71$200.0014.8%4.2%17.4%23.0%16.0%5.4%-0.2%-2.05B14.67B-337.3M2.371.94N/AN/A642,4431,522,3066,511,24411,865,980
2015-10-22$205.05$200.0013.2%3.8%18.0%16.1%14.6%4.9%-0.2%2.97B-10.54B-332.5M1.151.78N/AN/A1,565,4081,796,8396,639,45812,274,021
2015-10-23$207.52$200.0012.4%3.6%18.2%12.2%14.0%4.6%-0.1%4.50B-29.54B-328.6M1.381.83N/AN/A1,481,8122,047,4646,797,80112,590,002
2015-10-26$207.12$201.0013.2%3.9%15.2%16.0%14.7%5.1%0.5%2.01B-14.80B-335.9M1.631.84N/AN/A636,4561,038,0316,582,33712,377,382
2015-10-27$206.51$201.0013.6%4.0%15.3%17.7%15.2%5.0%0.4%1.13B-9.26B-338.0M1.301.90N/AN/A982,3941,272,4816,636,46212,647,104
2015-10-28$208.83$201.5013.1%3.6%14.5%15.3%14.9%4.7%-1.3%3.51B-28.91B-330.8M1.811.95N/AN/A922,7151,673,9436,839,63812,994,319
2015-10-29$208.92$202.0012.6%3.7%14.0%13.0%14.1%4.7%0.5%3.57B-28.57B-334.1M1.291.87N/AN/A983,4311,267,7846,955,29913,402,164
2015-10-30$208.38$202.0012.8%3.7%12.9%13.9%14.2%4.7%0.8%3.20B-22.69B-340.5M1.021.88N/AN/A1,411,7701,442,7257,224,76413,732,345