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Stockfacts

EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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Options · WDC

As of 2026-08-20
Put/Call Volume Ratio
1.21
Neutral
Put/Call OI Ratio
1.47
Cumulative positioning sentiment
Front-month ATM Implied Volatility
69.8%
Market-expected move
Contracts / Expirations
1,264
10 expirations
CallStrikePut
OIVolIVBidAskStrikeBidAskIVVolOI
–––––240.000.004.30139.0%086
–––––250.000.004.30131.2%012
–––––260.000.000.25123.4%062
–––––270.000.004.05115.6%062
–––––280.000.000.01108.8%3543
–––––290.000.000.25101.0%082
011.5%162.20176.00300.000.000.2395.1%0241
–––––310.000.001.4688.3%280
–––––320.000.010.74120.5%93580
–––––330.000.000.4275.6%60135
101.5%127.00141.00335.000.000.8772.7%227
311.5%123.65134.10340.000.100.88106.9%3136
–––––345.000.050.5095.1%2260
110103.9%114.00126.00350.000.050.9299.0%30210
1101.5%107.00121.00355.000.061.2399.0%058
301.5%104.00114.35360.000.220.9193.2%2882
3073.7%101.00108.00365.000.031.0487.3%2793
3069.8%96.00103.00370.000.041.2386.4%28105
–––––372.500.001.6951.2%10
7065.9%91.0098.00375.000.200.9780.5%1941
0263.9%88.0096.00377.500.570.8081.5%50
16662.0%86.0093.00380.000.600.9080.5%10266
0275.6%84.0091.00382.50–––––
26073.7%81.0089.00385.000.801.5783.4%17110
–––––387.500.002.8143.4%30
18073.7%76.4084.00390.000.854.0093.2%14188
–––––392.500.003.3040.5%10
1073.7%72.0079.00395.001.281.6878.6%5111
–––––397.500.004.1537.6%30
21075.6%67.0075.00400.001.581.9876.6%39573
5072.7%65.0072.00402.501.782.1776.6%421
11071.7%62.2570.00405.002.002.3976.6%16111
–––––407.501.524.2079.5%2138
8074.7%58.0066.00410.002.062.8873.7%35148
0572.7%56.0063.00412.501.984.1575.6%08
8169.8%53.0061.00415.003.055.9082.5%1966
–––––417.501.403.9567.8%56
18071.7%49.0057.00420.003.454.3573.7%29225
–––––422.503.006.6076.6%924
33772.7%45.0053.00425.004.405.1073.7%51138
11572.7%43.0051.00427.503.557.3074.7%1128
48072.7%41.0049.00430.005.356.4573.7%62345
20071.7%39.0047.00432.505.759.2078.6%423
12471.7%37.0045.00435.006.407.4572.7%12148
14070.8%35.0043.00437.507.008.0572.7%816
333074.7%34.0542.00440.007.608.7572.7%57352
9172.7%32.0039.95442.508.359.4572.7%1449
1413171.7%30.0038.00445.009.0010.3071.7%13146
13069.8%29.7033.75447.509.8511.1572.7%12103
458273.7%30.4032.10450.0010.8012.1072.7%62360
2173.7%28.8530.50452.5011.8013.1072.7%012
82273.7%27.2529.00455.0012.6513.9571.7%14152
–––––457.5013.5015.0571.7%1511
1441472.7%24.1026.10460.0014.6016.1571.7%43296
18373.7%23.0024.75462.5015.6517.3071.7%1250
572571.7%21.7522.55465.0016.8018.5071.7%2338
152973.7%20.4522.05467.5018.0519.8071.7%1121
605469.8%17.2020.95470.0020.0022.5075.6%11989
251966.9%14.5019.85472.5019.6022.5069.8%538
655973.7%17.0018.60475.0022.1023.8071.7%852
222067.8%12.5017.65477.5023.4525.3071.7%3099
1213473.7%15.0016.50480.0024.8026.7071.7%24221
241473.7%14.0515.55482.5024.3029.1569.8%28
55476.6%12.9016.55485.0028.1529.9071.7%3235
5273.7%12.3513.80487.5028.1031.5068.8%1622
14125771.7%10.2012.90490.0030.2533.2569.8%14200
–––––492.5033.1034.9071.7%102
7710773.7%9.9511.40495.0034.9038.7576.6%777
7572.7%6.9512.15497.5036.5538.6572.7%643
65521474.7%8.7010.05500.0036.4044.0075.6%34111
11168.8%5.659.10502.5038.0044.1070.8%510
1636472.7%5.1010.35505.0040.2545.3570.8%5155
7373.7%6.808.05507.5042.0050.0076.6%02
1303773.7%6.707.00510.0044.0552.0076.6%1322
101473.7%4.258.40512.50–––––
1231974.7%5.656.60515.0048.0056.0076.6%0381
2773.7%3.007.80517.5050.0058.0076.6%01
832573.7%4.755.50520.0052.0060.0075.6%3233
3974.7%4.505.25522.5054.0062.0075.6%20
1593672.7%3.154.95525.0056.0064.0074.7%277
3470.8%2.444.40527.5059.0067.0079.5%01
1646578.6%3.505.40530.0061.0069.0078.6%6232
51168.8%1.533.80532.50–––––
1341578.6%3.004.55535.0065.0073.0076.6%0213
31173.7%2.003.50537.50–––––
1472075.6%2.613.10540.0070.0078.0080.5%16162
46274.7%1.443.65542.50–––––
791982.5%1.725.00545.0075.0082.0080.5%071
1676.6%1.163.50547.50–––––
35116776.6%1.872.37550.0079.0087.0079.5%275
6679.5%1.662.83552.50–––––
224572.7%0.552.32555.0084.0091.0078.6%04
3138.6%0.003.50557.50–––––
901576.6%0.112.98560.0089.0096.0081.5%1053
1188.3%0.025.05562.50–––––
531983.4%0.433.20565.0094.00101.0084.4%038
2569.8%0.021.38567.50–––––
735177.6%0.901.26570.0098.00106.0082.5%226
131343.4%0.002.90572.50–––––
532080.5%0.651.58575.00103.00111.1586.4%030
3245.4%0.005.10577.50–––––
3104983.4%0.182.09580.00105.00117.6578.6%027
1047.3%0.004.90582.50–––––
374548.3%0.001.60585.00110.00123.0084.4%06
50102.9%0.104.90587.50–––––
2001076.6%0.140.80590.00117.75125.9592.2%025
5750.3%0.001.99592.50–––––
28151.2%0.001.48595.00120.10133.0090.3%03
13052.2%0.004.75597.50–––––
34832980.5%0.420.49600.00126.55138.00102.9%017
2054.2%0.001.00602.50–––––
50054.2%0.004.50605.00128.40144.0089.3%07
60380.5%0.080.52610.00136.30147.70104.9%043
1057.1%0.004.55612.50–––––
43058.1%0.004.55615.00139.80153.40101.0%011
1059.0%0.004.55617.50–––––
401283.4%0.050.48620.00–––––
32061.0%0.004.50625.00150.35163.00107.8%03
1062.0%0.004.45627.50–––––
54162.9%0.000.95630.00155.00167.2599.0%023
12063.9%0.004.45635.00160.00173.00108.8%01
41496.1%0.100.68640.00166.35178.00122.5%020
76066.9%0.004.05645.00–––––
802099.0%0.050.68650.00–––––
68069.8%0.004.35655.00–––––
4070.8%0.004.35657.50–––––
29071.7%0.004.35660.00–––––
4272.7%0.004.35665.00–––––
48074.7%0.004.35670.00–––––
25075.6%0.004.35675.00–––––
20077.6%0.003.80680.00204.25218.70129.3%02
41178.6%0.003.85685.00–––––
152079.5%0.003.15690.00–––––
8081.5%0.003.90695.00–––––
1996394.2%0.010.09700.00–––––
Click a call or put in the chain to see its history.

Source: Alpha Vantage options chain EOD (incl. greeks / IV / open interest). Contracts with low liquidity, far expirations (>180 days), and deep out-of-the-money strikes (±50%) are filtered out. P/C ratios are aggregated across the full chain.