SPY Options History — July 2008

In July 2008, SPY traded between $120.99 and $128.53. ATM implied volatility averaged 22.7%, placing in the 57.9% IV rank vs the trailing year. The 30-day expected move averaged 6.5%. IV traded above realized volatility by 3.0% (HV 20d: 19.6%). Max pain ranged from $128.00 to $136.00. Net GEX was positive for 0 of 22 trading days. Term structure was in contango for 16 of 22 days. Put/call ratio averaged 1.56.

Notable Days

  • 2008-07-15: Highest Volume — 2,443,231 contracts
  • 2008-07-08: Largest IV drop — 12.8% change
  • 2008-07-15: Highest IV Rank — 83.5%
  • 2008-07-15: Largest Expected Move — 7.8%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$125.63$120.99$128.53$128.38$126.83
Max Pain$131.32$128.00$136.00$135.00$128.00
ATM IV22.7%19.6%27.2%21.7%21.5%
Expected Move6.5%5.6%7.8%6.2%6.2%
HV 20d19.6%15.7%22.5%20.0%22.2%
HV 60d17.7%16.8%19.0%16.8%19.0%
IV Rank57.9%39.3%83.5%55.4%50.1%
IV Percentile61.9%33.3%94.0%56.7%49.6%
Term Structure0.3%-1.0%1.3%1.1%0.5%
VWIV22.8%20.0%26.8%21.7%21.2%
Skew 25d5.4%3.9%6.8%4.3%4.4%
Skew 10d10.1%7.3%12.6%8.1%8.5%
Call IV 25d20.1%17.0%23.7%19.3%19.5%
Put IV 25d25.5%21.9%30.3%23.6%24.0%
Bid-Ask Spread %2.321.434.891.871.95
Gamma HHI0.070.060.080.060.07
Net GEX-1.39B-1.93B-876.8M-1.55B-1.12B
Net DEX25.83B12.71B40.83B26.08B18.15B
Net VEX-153.8M-159.9M-142.2M-159.9M-157.6M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.560.852.842.491.09
Total Volume1,244,274.545627,3642,443,2311,568,851971,564
Total OI10,357,844.6829,187,67211,974,4639,364,35410,291,873

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2008-07-01$128.38$135.0021.7%6.2%20.0%55.4%21.7%4.3%1.1%-1.55B26.08B-159.9M2.491.87N/AN/A450,1261,118,7253,455,6795,908,675
2008-07-02$126.18$135.0024.4%7.0%20.5%70.3%22.9%4.7%0.2%-1.54B30.98B-159.0M1.022.17N/AN/A653,471665,9123,551,1116,076,018
2008-07-03$126.31$133.0022.4%6.4%18.6%59.5%22.5%4.4%1.3%-1.49B30.39B-158.8M1.542.43N/AN/A339,278522,3333,815,9036,164,475
2008-07-07$125.02$136.0024.2%7.0%15.7%68.7%23.9%6.4%-0.3%-1.64B33.75B-149.6M1.821.89N/AN/A521,058946,5363,832,2026,287,916
2008-07-08$127.24$135.0021.1%6.3%17.4%49.9%22.6%5.9%0.3%-1.63B27.64B-154.8M2.842.15N/AN/A560,4251,591,1633,934,9756,371,773
2008-07-09$124.79$134.0023.4%6.9%18.3%61.3%23.4%5.9%-0.3%-1.68B32.78B-151.5M1.062.49N/AN/A635,260671,6754,057,8636,437,798
2008-07-10$125.30$134.0024.3%7.0%18.1%67.0%24.4%6.0%-0.5%-1.60B29.95B-156.1M1.792.29N/AN/A564,2891,009,7034,289,0166,540,502
2008-07-11$123.84$133.0025.8%7.4%18.1%75.5%26.1%6.8%-0.4%-1.66B34.03B-153.8M1.662.66N/AN/A673,6971,115,8344,337,5456,701,375
2008-07-14$122.72$133.0026.7%7.7%17.1%81.0%26.8%6.8%-0.9%-1.75B36.78B-149.3M1.482.84N/AN/A407,357601,8294,496,9596,891,719
2008-07-15$120.99$132.0027.2%7.8%17.2%83.5%26.4%6.6%-1.0%-1.93B40.83B-142.2M1.792.69N/AN/A877,1081,566,1234,537,0046,971,296
2008-07-16$123.96$130.0023.7%6.8%20.3%63.3%23.8%6.2%0.2%-1.64B30.24B-151.9M1.482.58N/AN/A611,810903,9164,771,3596,959,566
2008-07-17$125.20$130.0023.4%6.7%20.8%61.5%23.9%6.4%0.2%-1.39B24.81B-155.8M1.164.89N/AN/A736,073855,4084,838,0226,915,892
2008-07-18$125.98$129.0022.4%6.4%21.0%55.9%22.9%6.2%0.2%-1.17B21.32B-158.1M1.282.27N/AN/A420,144538,9444,935,1877,039,276
2008-07-21$126.05$129.0021.6%6.2%20.0%51.0%21.8%5.8%0.3%-1.06B19.20B-152.6M1.431.93N/AN/A258,593368,7713,406,2845,781,388
2008-07-22$127.48$129.0019.7%5.6%20.5%39.7%20.1%5.0%1.1%-995.8M16.09B-154.3M1.652.37N/AN/A353,609584,9583,484,6145,890,420
2008-07-23$128.17$129.0019.7%5.6%20.7%39.6%20.0%5.0%1.1%-876.8M13.75B-155.9M1.282.06N/AN/A427,403547,3483,545,8275,911,723
2008-07-24$125.51$129.0021.4%6.1%21.7%49.8%21.4%5.0%0.8%-1.15B21.28B-153.5M1.371.90N/AN/A386,234528,6683,587,6385,999,645
2008-07-25$125.48$129.0021.4%6.1%19.6%49.7%21.6%4.7%0.9%-1.20B21.52B-153.5M1.562.11N/AN/A248,139387,5313,645,2756,089,953
2008-07-28$123.64$129.0022.7%6.5%20.1%57.2%22.8%4.4%0.5%-1.42B26.44B-146.7M2.671.98N/AN/A216,309577,4173,683,6606,215,701
2008-07-29$126.28$129.0020.7%5.9%21.6%45.4%20.6%3.9%0.8%-1.26B19.63B-151.4M0.852.06N/AN/A458,022390,8603,706,3426,336,424
2008-07-30$128.53$129.0019.6%5.6%22.5%39.3%20.6%3.9%0.6%-905.0M12.71B-157.1M1.081.43N/AN/A532,630577,7873,803,9856,372,725
2008-07-31$126.83$128.0021.5%6.2%22.2%50.1%21.2%4.4%0.5%-1.12B18.15B-157.6M1.091.95N/AN/A465,363506,2013,857,6616,434,212