SPY Options History — May 2025

In May 2025, SPY traded between $561.30 and $593.96. ATM implied volatility averaged 17.3%, placing in the 20.9% IV rank vs the trailing year. The 30-day expected move averaged 5.0%. IV traded below realized volatility by 8.9% (HV 20d: 26.2%). Max pain ranged from $545.00 to $570.00. Net GEX was positive for 14 of 21 trading days. Term structure was in contango for 12 of 21 days. Put/call ratio averaged 1.08.

Notable Days

  • 2025-05-21: Highest Volume — 10,710,626 contracts
  • 2025-05-12: Largest IV drop — 19.1% change
  • 2025-05-06: Highest IV Rank — 30.5%
  • 2025-05-01: Largest Expected Move — 6.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$579.97$561.30$593.96$561.53$589.64
Max Pain$560.52$545.00$570.00$545.00$570.00
ATM IV17.3%14.8%20.8%20.3%15.6%
Expected Move5.0%4.3%6.0%6.0%4.6%
HV 20d26.2%14.8%53.4%53.4%15.1%
HV 60d33.9%33.5%34.2%33.5%34.0%
IV Rank20.9%13.9%30.5%29.2%16.3%
IV Percentile73.3%57.1%89.3%89.3%62.3%
Term Structure-0.0%-0.4%0.4%0.1%0.4%
VWIV20.2%17.1%24.2%24.2%19.2%
Skew 25d5.8%4.1%7.4%7.2%5.5%
Skew 10d11.9%7.9%14.6%13.6%11.5%
Call IV 25d14.8%13.1%17.0%16.7%13.5%
Put IV 25d20.6%17.1%24.5%23.9%19.0%
Bid-Ask Spread %1.701.362.382.122.07
Gamma HHI0.030.020.100.020.04
Net GEX2.19B-6.87B13.03B2.40B4.57B
Net DEX-52.00B-115.02B-2.75B-28.99B-53.25B
Net VEX-836.0M-891.4M-757.4M-855.1M-833.8M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.080.901.301.091.13
Total Volume8,413,560.9056,284,86610,710,6268,568,5808,204,839
Total OI17,234,997.57115,906,72419,080,83416,889,45117,238,464

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-05-01$561.53$545.0020.3%6.0%53.4%29.2%24.2%7.2%0.1%2.40B-28.99B-855.1M1.092.12N/AN/A4,092,5294,476,0516,235,15410,654,297
2025-05-02$566.80$545.0019.2%5.5%50.3%26.1%22.5%6.8%0.2%3.33B-40.73B-861.9M1.302.38N/AN/A4,050,2955,255,0756,226,00810,931,152
2025-05-05$564.35$550.0020.0%5.8%46.6%28.3%23.2%7.3%0.1%-2.38B-18.05B-850.1M1.141.49N/AN/A3,468,6463,958,4556,016,32010,807,257
2025-05-06$561.30$555.0020.8%6.0%45.7%30.5%23.8%7.4%0.1%-3.44B-2.75B-867.7M1.141.36N/AN/A3,936,6144,497,8826,134,80110,986,792
2025-05-07$562.54$555.0020.2%5.8%44.6%29.0%23.0%7.2%0.2%-1.23B-11.79B-854.8M1.122.20N/AN/A3,779,9994,248,1056,155,87111,096,468
2025-05-08$566.98$555.0019.4%5.6%28.9%26.8%21.7%6.6%0.1%2.47B-32.06B-851.9M1.011.39N/AN/A4,847,7364,881,5816,251,69611,176,972
2025-05-09$564.28$555.0019.5%5.6%24.3%27.0%22.8%6.1%0.1%-2.23B-16.55B-842.3M0.931.54N/AN/A4,100,1373,821,7636,359,37911,501,452
2025-05-12$580.97$555.0015.8%4.6%24.6%16.7%18.4%5.0%0.1%12.99B-98.59B-782.5M1.121.66N/AN/A4,652,2295,202,0476,488,44611,106,646
2025-05-13$588.43$555.0015.1%4.3%24.5%14.8%17.5%4.2%0.0%13.03B-114.57B-757.4M1.091.69N/AN/A4,569,8054,981,9486,502,34511,472,919
2025-05-14$586.68$560.0015.5%4.4%24.3%16.0%17.2%4.4%-0.0%5.00B-94.14B-799.3M1.031.58N/AN/A3,955,9774,060,4566,584,23511,857,421
2025-05-15$589.15$560.0015.2%4.4%21.1%15.2%17.1%4.4%0.0%6.81B-99.41B-812.7M1.201.51N/AN/A4,278,5195,120,2936,624,54912,058,911
2025-05-16$593.37$560.0014.8%4.3%21.1%13.9%17.6%4.1%0.1%8.17B-115.02B-817.6M1.021.62N/AN/A3,932,9134,004,0666,660,95412,419,880
2025-05-19$593.96$563.0015.6%4.5%16.6%16.3%17.9%4.8%-0.2%1.50B-77.57B-823.6M1.041.55N/AN/A4,121,0114,273,0985,878,65410,028,070
2025-05-20$591.79$568.0015.7%4.5%15.1%16.5%18.2%5.1%-0.2%918.8M-65.13B-839.1M0.901.49N/AN/A4,173,6293,745,9046,020,44610,240,866
2025-05-21$584.17$570.0017.5%5.0%16.1%21.5%20.6%6.3%-0.3%-4.53B-22.47B-870.3M1.081.72N/AN/A5,154,3395,556,2876,114,95910,333,672
2025-05-22$584.64$570.0017.2%4.9%14.8%20.6%20.0%5.9%-0.2%-2.07B-28.45B-871.2M1.071.51N/AN/A3,990,5404,276,0136,200,01410,641,873
2025-05-23$580.39$570.0018.7%5.4%15.3%24.7%21.9%7.0%-0.3%-6.87B-4.16B-891.4M1.261.53N/AN/A3,547,2034,463,2876,169,42010,662,156
2025-05-27$590.25$570.0015.9%4.6%16.1%17.0%19.8%5.6%-0.4%4.49B-63.94B-819.5M1.191.64N/AN/A3,274,0443,893,4816,070,02510,293,962
2025-05-28$588.53$570.0016.0%4.7%16.2%17.3%19.3%5.4%-0.4%179.1M-49.33B-825.0M0.921.90N/AN/A3,265,3493,019,5176,102,14710,589,609
2025-05-29$589.60$570.0015.5%4.6%16.0%16.1%18.7%5.3%-0.3%2.86B-54.98B-827.8M0.911.77N/AN/A3,958,4213,594,6966,230,07710,810,610
2025-05-30$589.64$570.0015.6%4.6%15.1%16.3%19.2%5.5%0.4%4.57B-53.25B-833.8M1.132.07N/AN/A3,859,5374,345,3026,293,73310,944,731