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SPDR S&P 500 ETF Trust (spy)

2025-07-25 16:00:00 ET (Delayed)
Bid: 
637.43
Ask: 
637.55
Vol: 
56,846,200
Last: 
637.1
Change: 
+2.68 (+0.4207%)
Filters By:
Volume:
All
Expiration Type:
All
Options Range:
Near the Money
Size:
3
Expiration:
2025 July
 
Options Chain
Total Records: 24
Calls
(EXPR: Mon Jul 28 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
2.67
+0.39
2.67
2.73
36,198
0.06
0.7276
0.0938
5339
SPY 636.000
1.95
+0.225
1.94
1.96
72,339
0.06
0.635
0.1136
3384
SPY 637.000
1.32
+0.06
1.3
1.32
80,302
0.05
0.5182
0.1272
2640
SPY 638.000
0.82
-0.065
0.82
0.83
58,189
0.05
0.389
0.1265
3018
SPY 639.000
0.47
-0.125
0.48
0.49
29,538
0.05
0.2675
0.1101
4030
SPY 640.000
0.27
-0.115
0.26
0.27
45,883
0.05
0.1685
0.0847
5262
Mon Jul 28 2025
Strike
SPY 635.000
SPY 636.000
SPY 637.000
SPY 638.000
SPY 639.000
SPY 640.000
Puts
(EXPR: Mon Jul 28 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
0.59
-1.33
0.59
0.6
88,830
0.06
-0.2788
0.0965
5527
SPY 636.000
0.85
-1.52
0.84
0.85
68,692
0.06
-0.3745
0.1171
2294
SPY 637.000
1.2
-1.71
1.2
1.21
71,843
0.05
-0.4956
0.1309
593
SPY 638.000
1.72
-1.815
1.7
1.74
35,294
0.05
-0.6285
0.129
230
SPY 639.000
2.41
-1.84
2.35
2.41
5,975
0.05
-0.7514
0.1104
117
SPY 640.000
3.18
-1.86
3.13
3.17
7,439
0.05
-0.8495
0.0825
427
Calls
(EXPR: Tue Jul 29 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
3.25
+0.43
3.24
3.29
10,168
0.07
0.6728
0.0724
1336
SPY 636.000
2.57
+0.31
2.55
2.58
13,121
0.07
0.6012
0.0806
2793
SPY 637.000
1.95
+0.18
1.94
1.96
8,128
0.07
0.5194
0.086
958
SPY 638.000
1.44
+0.095
1.42
1.44
7,942
0.07
0.4318
0.0874
2143
SPY 639.000
1.01
+0.02
1
1.01
7,928
0.07
0.3439
0.0838
1575
SPY 640.000
0.68
-0.025
0.67
0.69
10,738
0.06
0.2611
0.0753
2229
Tue Jul 29 2025
Strike
SPY 635.000
SPY 636.000
SPY 637.000
SPY 638.000
SPY 639.000
SPY 640.000
Puts
(EXPR: Tue Jul 29 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
1.08
-1.32
1.08
1.09
17,443
0.07
-0.3338
0.0744
1575
SPY 636.000
1.38
-1.46
1.37
1.39
14,914
0.07
-0.4079
0.0831
939
SPY 637.000
1.76
-1.59
1.75
1.77
9,997
0.07
-0.4924
0.089
211
SPY 638.000
2.23
-1.7
2.23
2.26
5,384
0.07
-0.5831
0.0905
131
SPY 639.000
2.85
-1.725
2.8
2.85
797
0.06
-0.6749
0.0864
29
SPY 640.000
3.57
-1.73
3.48
3.54
590
0.06
-0.7602
0.0769
76
Calls
(EXPR: Wed Jul 30 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
4.18
+0.4
4.22
4.26
3,897
0.1
0.6224
0.0507
1381
SPY 636.000
3.55
+0.335
3.57
3.6
5,413
0.1
0.5723
0.0536
1831
SPY 637.000
2.96
+0.26
2.98
3
3,864
0.1
0.5186
0.0558
1481
SPY 638.000
2.46
+0.22
2.44
2.46
3,503
0.09
0.462
0.057
688
SPY 639.000
1.96
+0.135
1.96
1.98
2,028
0.09
0.4037
0.0568
1500
SPY 640.000
1.56
+0.095
1.55
1.56
3,447
0.09
0.3456
0.0551
2555
Wed Jul 30 2025
Strike
SPY 635.000
SPY 636.000
SPY 637.000
SPY 638.000
SPY 639.000
SPY 640.000
Puts
(EXPR: Wed Jul 30 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
1.97
-1.305
1.97
1.99
6,212
0.1
-0.3832
0.0519
1055
SPY 636.000
2.34
-1.37
2.32
2.34
3,568
0.1
-0.4347
0.055
597
SPY 637.000
2.75
-1.45
2.72
2.74
4,404
0.1
-0.4902
0.0574
461
SPY 638.000
3.19
-1.545
3.18
3.21
2,759
0.09
-0.5489
0.0588
349
SPY 639.000
3.82
-1.51
3.7
3.73
1,124
0.09
-0.6095
0.0588
61
SPY 640.000
4.45
-1.52
4.27
4.32
151
0.09
-0.6697
0.0571
40
Calls
(EXPR: Thu Jul 31 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
4.95
+0.44
4.97
5
4,804
0.11
0.6031
0.0415
4784
SPY 636.000
4.37
+0.425
4.34
4.36
2,998
0.11
0.562
0.0432
2040
SPY 637.000
3.74
+0.32
3.75
3.77
2,088
0.11
0.5189
0.0444
1770
SPY 638.000
3.18
+0.245
3.2
3.22
1,509
0.11
0.4741
0.0451
1864
SPY 639.000
2.68
+0.19
2.7
2.72
1,509
0.11
0.4282
0.0452
6628
SPY 640.000
2.26
+0.165
2.25
2.27
4,169
0.1
0.382
0.0446
6823
Thu Jul 31 2025
Strike
SPY 635.000
SPY 636.000
SPY 637.000
SPY 638.000
SPY 639.000
SPY 640.000
Puts
(EXPR: Thu Jul 31 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
SPY 635.000
2.68
-1.245
2.64
2.66
9,812
0.11
-0.4023
0.0424
3592
SPY 636.000
3.02
-1.34
3
3.03
2,998
0.11
-0.4443
0.0442
334
SPY 637.000
3.45
-1.38
3.41
3.43
4,099
0.11
-0.4888
0.0456
218
SPY 638.000
3.94
-1.41
3.86
3.89
2,014
0.11
-0.535
0.0464
144
SPY 639.000
4.42
-1.495
4.36
4.39
646
0.11
-0.5824
0.0466
87
SPY 640.000
5.02
-1.495
4.9
4.94
380
0.1
-0.6305
0.0462
164
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