SPY Options History — April 2008

In April 2008, SPY traded between $132.93 and $139.63. ATM implied volatility averaged 19.8%, placing in the 49.4% IV rank vs the trailing year. The 30-day expected move averaged 5.8%. IV traded below realized volatility by 3.0% (HV 20d: 22.8%). Max pain ranged from $133.00 to $138.00. Net GEX was positive for 1 of 22 trading days. Term structure was in contango for 22 of 22 days. Put/call ratio averaged 1.53.

Notable Days

  • 2008-04-18: Highest Volume — 1,525,486 contracts
  • 2008-04-16: Largest IV drop — 12.8% change
  • 2008-04-14: Highest IV Rank — 65.0%
  • 2008-04-14: Largest Expected Move — 6.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$137.00$132.93$139.63$136.61$138.26
Max Pain$135.91$133.00$138.00$133.00$138.00
ATM IV19.8%17.5%23.0%20.7%18.9%
Expected Move5.8%5.0%6.6%5.9%5.4%
HV 20d22.8%13.7%29.9%29.9%13.9%
HV 60d22.5%21.0%23.9%23.9%21.0%
IV Rank49.4%37.3%65.0%54.7%42.9%
IV Percentile48.3%34.5%69.4%55.2%40.9%
Term Structure0.9%0.3%1.4%0.8%0.9%
VWIV20.6%18.2%23.5%22.3%18.2%
Skew 25d5.1%4.0%5.8%5.4%4.1%
Skew 10d9.1%7.6%10.5%10.3%8.1%
Call IV 25d17.6%15.7%20.1%18.2%16.7%
Put IV 25d22.7%19.7%25.8%23.7%20.8%
Bid-Ask Spread %2.611.753.432.262.12
Gamma HHI0.050.050.070.050.05
Net GEX-496.8M-1.17B224.8M-388.8M-575.6M
Net DEX3.79B-4.51B15.09B3.21B3.16B
Net VEX-180.5M-184.5M-174.0M-174.0M-183.0M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.530.922.401.831.20
Total Volume779,479.909411,4631,525,4861,026,862740,519
Total OI9,688,298.58,725,77510,823,8068,725,7759,782,753

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2008-04-01$136.61$133.0020.7%5.9%29.9%54.7%22.3%5.4%0.8%-388.8M3.21B-174.0M1.832.26N/AN/A362,894663,9683,332,0115,393,764
2008-04-02$136.70$134.0021.2%6.1%29.9%57.2%22.2%5.3%1.2%-453.6M3.28B-178.4M1.902.30N/AN/A246,352469,2533,425,2505,557,456
2008-04-03$137.04$135.0021.1%6.1%29.8%56.5%21.7%4.7%1.3%-428.8M2.70B-179.4M1.591.75N/AN/A268,110426,6353,464,5185,626,456
2008-04-04$136.89$135.0020.4%6.4%28.7%53.2%23.2%5.8%0.6%-429.1M3.58B-177.9M1.482.92N/AN/A323,231477,1083,536,2605,690,033
2008-04-07$136.96$135.0020.0%6.2%28.3%51.0%21.9%5.6%0.3%-462.0M2.84B-180.1M1.843.03N/AN/A305,801563,1013,639,9195,845,153
2008-04-08$136.82$136.0019.4%6.1%27.7%48.0%22.2%5.7%0.6%-459.2M3.24B-182.9M1.533.02N/AN/A219,597336,9643,727,3265,966,879
2008-04-09$135.83$136.0019.8%6.3%25.2%50.2%22.5%5.6%0.3%-696.7M6.55B-183.8M1.022.99N/AN/A347,681354,3763,781,2676,062,238
2008-04-10$136.02$136.0021.2%6.1%24.9%56.0%21.9%5.6%0.7%-486.6M4.94B-183.2M1.582.68N/AN/A336,976533,5893,896,7146,076,376
2008-04-11$133.38$136.0022.9%6.6%26.0%64.5%21.9%5.7%0.4%-1.10B14.01B-182.1M1.292.47N/AN/A542,650699,4103,972,3416,263,761
2008-04-14$132.93$135.0023.0%6.6%25.4%65.0%23.5%5.7%0.3%-1.17B15.09B-178.2M1.182.60N/AN/A378,171447,4044,057,8316,342,377
2008-04-15$133.24$135.0022.3%6.4%25.0%61.3%21.9%5.5%0.4%-1.12B13.50B-177.5M0.922.84N/AN/A418,398383,6294,083,4106,444,916
2008-04-16$136.85$135.0019.4%5.6%22.5%47.0%20.2%5.2%1.0%-53.7M471.1M-177.8M1.082.75N/AN/A544,216588,7094,158,0546,463,206
2008-04-17$137.05$135.0019.3%5.5%20.2%46.6%19.9%5.2%1.0%-143.3M647.2M-178.1M1.822.34N/AN/A292,261532,3464,177,2026,570,042
2008-04-18$138.48$136.0018.8%5.4%20.0%43.8%19.2%5.4%1.1%224.8M-4.51B-177.5M1.323.40N/AN/A656,242869,2444,210,8146,612,992
2008-04-21$138.55$137.0018.5%5.3%19.0%42.2%19.4%5.1%1.2%-424.9M1.66B-181.4M1.642.16N/AN/A155,607255,8563,455,0065,461,408
2008-04-22$137.94$137.0018.9%5.4%19.1%44.7%19.7%5.0%1.1%-501.2M3.36B-180.5M2.401.94N/AN/A188,731453,4583,451,6115,435,211
2008-04-23$137.72$137.0018.6%5.3%18.4%43.0%18.7%4.5%1.4%-611.0M4.11B-183.8M1.542.44N/AN/A179,432275,6983,553,4625,601,077
2008-04-24$138.32$137.0018.3%5.2%18.4%41.3%18.3%4.3%1.2%-506.4M2.14B-183.1M1.353.43N/AN/A314,157423,8863,610,3645,681,893
2008-04-25$139.60$137.0017.5%5.0%18.0%37.4%18.2%4.0%1.1%-363.8M-766.0M-183.8M1.683.22N/AN/A204,192343,2633,683,5415,754,215
2008-04-28$139.63$137.0017.5%5.0%18.0%37.3%18.3%4.0%1.1%-334.0M-983.5M-181.1M1.922.55N/AN/A191,629367,0273,749,5655,836,538
2008-04-29$139.08$138.0018.6%5.3%13.7%41.8%18.6%4.0%0.6%-441.3M1.05B-184.5M1.442.28N/AN/A191,137275,6503,802,9645,904,393
2008-04-30$138.26$138.0018.9%5.4%13.9%42.9%18.2%4.1%0.9%-575.6M3.16B-183.0M1.202.12N/AN/A337,176403,3433,813,8195,968,934