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REGN option chain Regeneron Pharmaceuticals, Inc.

Cboe delayed options data · as of 15:43 UTC

Each row is one strike. The left half is the call, the right half the put. Bid/ask are what buyers and sellers currently quote; volume is contracts traded this session; open interest is standing contracts. The highlighted row sits closest to the stock price.

This expiration prices a move of about ±8.7% (715.66–852.26) · ATM IV 36.6% · P/C open interest 1.07

CALLS Strike PUTS
BidAskVolOIThe number of option contracts currently outstanding at a strike or expiration. High open interest shows where positions are concentrated. IVΔModel sensitivity of an option's price to a $1 move in the stock; also used as a rough moneyness scale (a 25-delta option is well out of the money).ΓΘ BidAskVolOI IVΔΓΘ
381.00 390.00 85.5% 1.00 0.0000 0.000 400 0 4.90 6 122.4% -0.00 0.0000 -0.008
371.10 379.90 80.2% 1.00 0.0000 0.000 410 0 4.90 118.4% -0.00 0.0000 -0.009
361.10 370.40 86.6% 1.00 0.0000 0.000 420 0 4.90 23 114.5% -0.00 0.0000 -0.010
351.20 360.00 76.2% 1.00 0.0000 0.000 430 0 4.90 3 110.7% -0.00 0.0000 -0.011
341.20 350.10 74.1% 1.00 0.0000 0.000 440 0 4.90 9 107.0% -0.00 0.0000 -0.013
331.20 340.50 2 77.3% 1.00 0.0000 0.000 450 0 4.90 18 103.4% -0.00 0.0000 -0.015
321.30 330.20 69.8% 1.00 0.0000 0.000 460 0 4.90 12 99.8% -0.00 0.0000 -0.017
311.30 320.60 72.4% 1.00 0.0001 0.000 470 0 4.90 2 96.3% -0.00 0.0001 -0.019
301.40 310.30 8 65.6% 1.00 0.0001 0.000 480 0 4.90 6 92.9% -0.00 0.0001 -0.022
291.50 300.30 63.5% 1.00 0.0001 0.000 490 0 4.90 89.5% -0.00 0.0001 -0.025
281.50 290.80 66.3% 1.00 0.0001 0.000 500 0 4.90 6 86.2% -0.00 0.0001 -0.029
261.70 270.50 3 58.5% 0.99 0.0001 -0.004 520 0 4.90 28 79.8% -0.01 0.0001 -0.037
241.80 251.00 1 57.7% 0.99 0.0002 -0.018 540 0 4.90 43 73.5% -0.01 0.0002 -0.049
222.00 231.00 4 53.0% 0.99 0.0003 -0.035 560 0 4.90 83 67.5% -0.01 0.0003 -0.064
212.20 221.00 51.4% 0.98 0.0003 -0.045 570 0 4.90 64.5% -0.02 0.0003 -0.073
207.20 216.00 49.9% 0.98 0.0004 -0.051 575 0 4.90 63.0% -0.02 0.0004 -0.078
202.30 211.00 2 49.1% 0.98 0.0004 -0.057 580 0 4.90 46 61.6% -0.02 0.0004 -0.083
197.40 206.00 48.2% 0.98 0.0004 -0.063 585 0 4.90 60.1% -0.02 0.0004 -0.089
192.50 201.00 47.3% 0.98 0.0004 -0.069 590 0 4.90 5 58.7% -0.02 0.0005 -0.095
187.60 196.40 48.3% 0.98 0.0005 -0.076 595 0 4.90 1 57.3% -0.03 0.0005 -0.102
182.70 191.50 5 47.6% 0.97 0.0005 -0.084 600 0.0500 7.80 149 61.9% -0.03 0.0006 -0.108
177.80 186.60 47.0% 0.97 0.0006 -0.091 605 0 4.90 54.4% -0.03 0.0006 -0.116
172.90 182.00 47.3% 0.97 0.0006 -0.099 610 0 4.90 6 53.0% -0.03 0.0006 -0.123
168.10 176.90 46.3% 0.96 0.0007 -0.108 615 0 4.90 3 51.6% -0.04 0.0007 -0.131
163.20 172.00 14 45.4% 0.96 0.0008 -0.117 620 0 4.90 37 50.2% -0.04 0.0008 -0.140
158.40 167.00 44.6% 0.96 0.0008 -0.127 625 0 4.90 48.8% -0.04 0.0008 -0.149
153.50 162.00 43.5% 0.95 0.0009 -0.137 630 0 4.90 47.4% -0.05 0.0009 -0.159
148.70 157.00 42.6% 0.95 0.0010 -0.147 635 0 4.90 1 46.1% -0.05 0.0010 -0.169
144.00 152.80 9 43.8% 0.95 0.0010 -0.159 640 0 4.90 26 44.7% -0.06 0.0011 -0.179
139.20 148.00 43.2% 0.94 0.0011 -0.170 645 0 4.90 43.3% -0.06 0.0012 -0.190
134.50 143.00 2 42.3% 0.94 0.0012 -0.182 650 0.0500 8.60 16 48.1% -0.07 0.0012 -0.202
129.80 138.00 41.4% 0.93 0.0013 -0.195 655 0 4.90 14 40.6% -0.07 0.0013 -0.214
125.10 133.90 10 42.0% 0.92 0.0014 -0.208 660 0 4.90 143 39.3% -0.08 0.0014 -0.227
120.40 129.00 6 41.2% 0.92 0.0015 -0.222 665 0 4.90 19 37.9% -0.09 0.0016 -0.240
115.90 124.20 5 40.7% 0.91 0.0017 -0.236 670 0 4.90 65 36.6% -0.09 0.0017 -0.254
111.30 120.00 14 40.8% 0.90 0.0018 -0.251 675 0.0500 9.50 5 41.8% -0.10 0.0018 -0.268
106.20 115.20 3 39.5% 0.89 0.0019 -0.266 680 0.2500 9.70 14 40.8% -0.11 0.0019 -0.282
101.80 111.00 5 39.7% 0.88 0.0020 -0.282 685 0.5500 10.00 3 39.9% -0.12 0.0021 -0.297
97.40 106.90 45 39.8% 0.87 0.0022 -0.297 690 1.15 10.00 19 39.1% -0.13 0.0022 -0.312
93.10 102.00 8 38.9% 0.86 0.0023 -0.314 695 1.80 11.00 11 39.2% -0.14 0.0024 -0.328
88.80 98.00 20 39.1% 0.85 0.0025 -0.330 700 2.50 11.90 62 39.2% -0.15 0.0025 -0.343
84.50 93.70 3 38.6% 0.84 0.0026 -0.346 705 3.20 12.60 9 38.8% -0.17 0.0027 -0.359
80.40 89.80 5 38.7% 0.82 0.0028 -0.363 710 4.10 13.50 8 38.7% -0.18 0.0028 -0.375
76.40 85.80 8 38.6% 0.81 0.0030 -0.379 715 5.00 14.40 11 38.4% -0.19 0.0030 -0.390
72.50 81.70 12 38.3% 0.79 0.0031 -0.395 720 6.30 15.40 20 38.4% -0.21 0.0032 -0.406
69.00 77.00 18 37.8% 0.78 0.0033 -0.411 725 7.70 16.10 1 9 38.1% -0.23 0.0033 -0.420
65.20 74.00 9 38.2% 0.76 0.0034 -0.426 730 8.90 17.20 1 24 37.9% -0.24 0.0035 -0.435
61.20 70.40 4 37.9% 0.74 0.0036 -0.441 735 10.30 18.90 8 38.1% -0.26 0.0036 -0.449
57.50 66.10 12 37.2% 0.72 0.0038 -0.455 740 11.60 18.10 160 36.4% -0.28 0.0038 -0.462
54.10 62.70 11 37.2% 0.71 0.0039 -0.468 745 12.80 21.90 16 37.6% -0.30 0.0039 -0.474
51.00 60.00 35 37.7% 0.69 0.0040 -0.480 750 14.30 23.50 23 37.4% -0.32 0.0041 -0.486
47.50 56.20 12 37.1% 0.66 0.0042 -0.491 755 16.10 24.80 7 37.0% -0.34 0.0042 -0.496
44.40 52.80 26 36.9% 0.64 0.0043 -0.500 760 18.00 25.40 17 36.2% -0.36 0.0043 -0.505
41.70 48.40 12 36.2% 0.62 0.0044 -0.509 765 20.00 29.00 16 37.1% -0.38 0.0044 -0.513
38.50 47.50 17 37.1% 0.60 0.0045 -0.516 770 22.00 31.10 24 36.9% -0.40 0.0045 -0.519
35.50 44.70 4 36.9% 0.58 0.0046 -0.521 775 24.20 33.00 13 36.7% -0.43 0.0046 -0.524
33.00 42.00 33 36.9% 0.55 0.0046 -0.525 780 28.40 33.00 11 36.4% -0.45 0.0046 -0.527
30.20 39.40 68 36.6% 0.53 0.0047 -0.527 785 29.00 38.00 5 36.6% -0.47 0.0047 -0.528
30.10 34.00 32 36.2% 0.51 0.0047 -0.527 790 34.20 40.40 34 37.9% -0.50 0.0047 -0.528
26.50 31.90 66 35.6% 0.48 0.0047 -0.526 795 36.90 40.60 27 36.5% -0.52 0.0047 -0.526
23.30 31.50 61 35.9% 0.46 0.0047 -0.523 800 37.00 46.00 24 36.4% -0.54 0.0047 -0.523
23.60 27.40 17 36.1% 0.44 0.0046 -0.518 805 41.40 47.10 13 36.1% -0.57 0.0047 -0.519
19.40 25.80 101 35.0% 0.42 0.0046 -0.512 810 45.90 50.90 3 5 37.3% -0.59 0.0046 -0.513
19.30 24.60 14 36.9% 0.39 0.0045 -0.505 815 47.90 54.40 1 36.8% -0.61 0.0046 -0.505
18.00 24.30 8 37.3% 0.37 0.0045 -0.496 820 51.90 58.10 5 37.4% -0.63 0.0045 -0.497
14.00 23.20 5 36.2% 0.35 0.0044 -0.486 825 53.00 61.50 36.1% -0.65 0.0044 -0.487
14.30 21.50 9 37.1% 0.33 0.0043 -0.475 830 56.00 65.30 36.0% -0.68 0.0043 -0.476
12.20 17.70 9 35.3% 0.31 0.0042 -0.464 835 61.00 68.80 36.8% -0.69 0.0042 -0.465
12.70 17.90 3 12 37.3% 0.29 0.0040 -0.451 840 64.80 72.50 36.8% -0.71 0.0041 -0.453
11.50 16.50 6 37.2% 0.27 0.0039 -0.437 845 67.20 75.80 35.6% -0.73 0.0040 -0.440
10.80 13.80 1 30 36.5% 0.26 0.0038 -0.423 850 71.00 80.40 1 36.0% -0.75 0.0039 -0.426
7.30 15.30 24 36.6% 0.24 0.0036 -0.409 855 75.00 84.20 5 35.9% -0.77 0.0037 -0.412
6.30 14.40 18 36.7% 0.22 0.0035 -0.394 860 79.00 88.50 7 36.1% -0.78 0.0036 -0.398
5.00 13.80 12 36.6% 0.21 0.0034 -0.380 865 83.40 92.60 36.3% -0.80 0.0035 -0.383
4.00 13.00 4 36.5% 0.20 0.0032 -0.365 870 88.00 96.90 36.7% -0.81 0.0033 -0.369
5.30 9.80 4 36.2% 0.18 0.0031 -0.350 875 92.00 101.20 36.6% -0.83 0.0032 -0.355
5.40 7.60 1 108 35.7% 0.17 0.0029 -0.335 880 96.00 105.50 36.3% -0.84 0.0031 -0.340
2.55 10.80 7 37.1% 0.16 0.0028 -0.320 885 101.00 109.90 36.9% -0.85 0.0029 -0.326
1.45 10.40 1 36.9% 0.15 0.0026 -0.306 890 105.00 114.50 36.7% -0.86 0.0028 -0.311
0.3000 9.90 1 36.4% 0.14 0.0025 -0.291 895 110.00 119.00 37.3% -0.88 0.0027 -0.298
0.0500 9.60 84 36.9% 0.13 0.0024 -0.278 900 114.30 123.10 36.5% -0.89 0.0025 -0.285
0.0500 9.40 5 37.7% 0.12 0.0022 -0.264 905 119.00 127.80 36.9% -0.90 0.0024 -0.272
0.0500 9.20 38.5% 0.11 0.0021 -0.251 910 123.60 132.40 36.8% -0.90 0.0023 -0.259
0.0500 9.10 39.5% 0.10 0.0020 -0.239 915 128.30 137.10 36.9% -0.91 0.0022 -0.248
0.0500 8.90 4 40.2% 0.09 0.0019 -0.226 920 133.10 141.90 37.2% -0.92 0.0021 -0.236
0.0500 8.80 41.1% 0.09 0.0018 -0.215 925 137.90 146.70 37.5% -0.93 0.0020 -0.225
0.0500 8.60 1 41.8% 0.08 0.0017 -0.203 930 142.70 151.50 37.7% -0.94 0.0019 -0.214
0 4.90 2 37.5% 0.07 0.0016 -0.193 935 147.50 156.30 37.8% -0.94 0.0018 -0.206
0.5000 8.40 14 44.1% 0.07 0.0015 -0.182 940 152.00 161.20 37.2% -0.95 0.0017 -0.197
0.0500 8.30 2 44.3% 0.06 0.0014 -0.173 945 157.20 166.00 38.1% -0.95 0.0016 -0.186
0.0500 8.20 45.1% 0.06 0.0013 -0.163 950 162.10 170.90 38.4% -0.96 0.0016 -0.176
0.0500 8.20 3 46.0% 0.06 0.0012 -0.154 955 166.60 175.90 37.3% -0.96 0.0015 -0.166
0 4.90 11 41.8% 0.05 0.0011 -0.146 960 172.00 180.80 39.4% -0.97 0.0014 -0.155
0 4.90 42.6% 0.05 0.0011 -0.138 965 176.50 185.80 37.9% -0.97 0.0013 -0.150
0 4.90 43.5% 0.04 0.0010 -0.130 970 181.90 190.70 40.1% -0.98 0.0012 -0.142
0 4.90 44.3% 0.04 0.0009 -0.123 975 186.40 195.70 36.8% -0.98 0.0011 -0.134
0.0500 7.90 75 50.1% 0.04 0.0009 -0.116 980 191.40 200.70 37.5% -0.98 0.0010 -0.125
0 4.90 45.9% 0.04 0.0008 -0.110 985 196.80 205.60 41.5% -0.99 0.0009 -0.109
0 4.90 1 46.7% 0.03 0.0008 -0.103 990 201.70 210.60 41.7% -0.99 0.0008 -0.107
0 4.90 47.5% 0.03 0.0007 -0.098 995 206.30 215.60 -0.99 0.0006 -0.105
0 3.90 69 46.2% 0.03 0.0007 -0.092 1,000 211.30 220.60 -0.99 0.0005 -0.102
0 4.90 49.9% 0.02 0.0006 -0.082 1,010 221.30 230.60 -1.00 0.0003 -0.095
0 4.90 3 51.4% 0.02 0.0005 -0.073 1,020 231.30 240.60 -1.00 0.0002 -0.089
0 4.90 52.9% 0.02 0.0005 -0.065 1,030 241.30 250.60 -1.00 0.0001 -0.089
0 4.90 1 54.4% 0.02 0.0004 -0.058 1,040 251.30 260.60 -1.00 0.0000 -0.089
0 4.90 55.8% 0.01 0.0004 -0.052 1,050 261.30 270.60 -1.00 0.0000 -0.089
0 4.90 1 57.3% 0.01 0.0003 -0.046 1,060 271.30 280.60 -1.00 0.0000 -0.089
0 4.90 1 58.7% 0.01 0.0003 -0.041 1,070 281.30 290.60 -1.00 0.0000 -0.089
0 4.90 60.1% 0.01 0.0002 -0.037 1,080 291.30 300.60 -1.00 0.0000 -0.089
0 4.90 61.5% 0.01 0.0002 -0.033 1,090 301.30 310.60 -1.00 0.0000 -0.089
0 4.90 62.8% 0.01 0.0002 -0.029 1,100 311.30 320.60 -1.00 0.0000 -0.089
0 4.90 64.1% 0.01 0.0002 -0.026 1,110 321.30 330.60 -1.00 0.0000 -0.089
0 4.90 65.5% 0.01 0.0001 -0.023 1,120 331.30 340.60 -1.00 0.0000 -0.089
0 4.90 2 66.8% 0.00 0.0001 -0.021 1,130 341.30 350.60 -1.00 0.0000 -0.089
0 4.90 13 68.0% 0.00 0.0001 -0.019 1,140 351.30 360.60 -1.00 0.0000 -0.089
0 4.90 6 69.3% 0.00 0.0001 -0.017 1,150 361.30 370.60 -1.00 0.0000 -0.089
0 4.90 1 70.6% 0.00 0.0001 -0.015 1,160 371.30 380.60 -1.00 0.0000 -0.089

Strikes shown: within ±50% of the underlying price. Intrinsic value = max(0, price − strike) for calls, max(0, strike − price) for puts; extrinsic = option price − intrinsic. Greeks and IV as computed by the exchange feed.

Volatility smile — Nov 20, 2026

Volatility page →

Implied volatility per strike for this expiration. Out-of-the-money puts usually price higher IV than calls — the skew.

32%38%45%51%784.0645.0925.0
callsputs

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