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REGN option chain Regeneron Pharmaceuticals, Inc.

Cboe delayed options data · as of 21:43 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 ±8.4% (716.69–847.39) · ATM IV 35.3% · 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
379.00 387.90 93.9% 1.00 0.0000 0.000 400 0 5.10 6 122.4% -0.00 0.0000 -0.008
369.00 377.90 89.5% 1.00 0.0000 0.000 410 0 5.10 118.4% -0.00 0.0000 -0.009
359.00 367.90 85.3% 1.00 0.0000 0.000 420 0 5.10 23 114.5% -0.00 0.0000 -0.010
349.10 358.00 84.1% 1.00 0.0000 0.000 430 0 5.10 3 110.7% -0.00 0.0000 -0.011
339.10 348.00 80.1% 1.00 0.0000 0.000 440 0 5.10 9 106.9% -0.00 0.0000 -0.013
329.20 338.10 2 78.9% 1.00 0.0000 0.000 450 0 5.10 18 103.3% -0.00 0.0000 -0.015
319.30 328.20 77.5% 1.00 0.0000 0.000 460 0 4.90 12 99.7% -0.00 0.0000 -0.017
309.30 318.20 73.8% 1.00 0.0001 0.000 470 0 4.90 2 96.2% -0.00 0.0001 -0.019
299.40 308.30 8 72.4% 1.00 0.0001 0.000 480 0 4.90 6 92.8% -0.00 0.0001 -0.021
289.40 298.30 68.9% 1.00 0.0001 0.000 490 0 4.90 89.4% -0.00 0.0001 -0.025
279.40 288.30 65.4% 1.00 0.0001 0.000 500 0 4.90 6 86.1% -0.00 0.0001 -0.028
259.60 268.50 3 62.4% 0.99 0.0001 -0.003 520 0 4.90 28 79.6% -0.01 0.0001 -0.036
239.70 248.60 1 57.7% 0.99 0.0002 -0.016 540 0 4.90 43 73.3% -0.01 0.0002 -0.047
219.90 228.80 4 54.2% 0.99 0.0003 -0.033 560 0 4.90 83 67.2% -0.01 0.0003 -0.062
210.00 218.90 52.4% 0.98 0.0003 -0.042 570 0 4.90 64.2% -0.02 0.0003 -0.070
205.10 214.00 52.0% 0.98 0.0004 -0.048 575 0 4.90 62.8% -0.02 0.0004 -0.075
200.10 209.00 2 50.5% 0.98 0.0004 -0.053 580 0 4.90 46 61.3% -0.02 0.0004 -0.080
195.20 204.10 49.6% 0.98 0.0004 -0.059 585 0 4.90 59.9% -0.02 0.0004 -0.086
190.30 199.20 48.6% 0.98 0.0004 -0.065 590 0 4.90 5 58.4% -0.02 0.0005 -0.091
185.40 194.30 48.9% 0.98 0.0005 -0.072 595 0 4.90 1 57.0% -0.02 0.0005 -0.097
180.50 189.40 5 48.2% 0.97 0.0005 -0.079 600 0.0500 7.20 149 60.4% -0.03 0.0006 -0.104
176.50 184.50 50.4% 0.97 0.0006 -0.086 605 0 4.90 54.1% -0.03 0.0006 -0.111
171.70 179.00 48.1% 0.97 0.0006 -0.094 610 0.0500 7.50 4 6 58.0% -0.03 0.0006 -0.118
166.80 174.10 47.2% 0.97 0.0007 -0.102 615 0 4.90 3 51.3% -0.03 0.0007 -0.126
160.90 169.80 14 45.2% 0.96 0.0008 -0.111 620 0.0500 7.90 37 55.6% -0.04 0.0008 -0.134
156.10 165.00 44.9% 0.96 0.0008 -0.120 625 0 4.90 48.5% -0.04 0.0008 -0.143
151.20 160.00 43.8% 0.96 0.0009 -0.130 630 0 4.90 47.1% -0.05 0.0009 -0.152
146.00 155.00 41.9% 0.95 0.0010 -0.140 635 0 4.90 1 45.7% -0.05 0.0010 -0.161
141.00 150.30 9 41.2% 0.95 0.0010 -0.151 640 0.0500 8.20 26 50.1% -0.05 0.0011 -0.172
137.80 145.10 43.3% 0.94 0.0011 -0.162 645 0 4.90 43.0% -0.06 0.0012 -0.182
133.10 140.40 2 42.9% 0.94 0.0012 -0.174 650 0.0500 8.10 1 16 47.0% -0.06 0.0013 -0.193
128.40 135.60 42.4% 0.93 0.0013 -0.186 655 0 4.90 2 14 40.2% -0.07 0.0014 -0.205
123.70 130.90 10 41.9% 0.92 0.0014 -0.199 660 0.0500 8.20 1 143 44.1% -0.08 0.0015 -0.217
119.10 126.40 6 41.7% 0.92 0.0016 -0.212 665 0.2000 8.40 19 43.1% -0.08 0.0016 -0.230
113.30 122.00 5 39.9% 0.91 0.0017 -0.226 670 0.0500 9.10 65 42.4% -0.09 0.0017 -0.243
108.70 117.60 14 39.8% 0.90 0.0018 -0.240 675 0.0500 9.30 5 41.1% -0.10 0.0018 -0.257
104.20 113.00 3 39.4% 0.89 0.0020 -0.255 680 0.0500 9.20 14 39.5% -0.11 0.0020 -0.271
100.00 108.70 5 39.6% 0.88 0.0021 -0.270 685 0.0500 9.60 3 38.4% -0.12 0.0021 -0.285
95.30 104.00 1 45 38.7% 0.87 0.0022 -0.285 690 0.6500 9.80 19 37.8% -0.13 0.0023 -0.300
91.10 99.90 8 38.9% 0.86 0.0024 -0.301 695 1.30 10.50 11 37.7% -0.14 0.0024 -0.315
86.40 95.80 20 38.4% 0.85 0.0026 -0.317 700 2.00 11.10 62 37.4% -0.15 0.0026 -0.331
82.00 91.70 3 38.1% 0.84 0.0027 -0.333 705 2.65 12.00 9 37.2% -0.17 0.0028 -0.346
78.50 86.80 5 37.8% 0.82 0.0029 -0.349 710 3.40 12.90 8 37.0% -0.18 0.0029 -0.361
75.00 83.20 8 38.4% 0.81 0.0031 -0.365 715 4.30 13.10 11 36.2% -0.19 0.0031 -0.377
71.00 78.90 12 37.9% 0.79 0.0032 -0.381 720 5.70 12.90 20 35.4% -0.21 0.0033 -0.392
67.00 74.80 18 37.5% 0.78 0.0034 -0.397 725 7.00 15.60 1 9 36.6% -0.23 0.0034 -0.406
63.00 71.30 9 37.3% 0.76 0.0036 -0.412 730 8.00 16.50 1 24 36.1% -0.24 0.0036 -0.421
60.00 67.40 4 37.5% 0.74 0.0038 -0.426 735 9.20 17.70 8 35.8% -0.26 0.0038 -0.434
56.00 63.70 12 37.0% 0.72 0.0039 -0.440 740 11.00 19.10 160 36.0% -0.28 0.0040 -0.447
53.00 60.20 11 37.1% 0.70 0.0041 -0.453 745 12.00 20.60 16 35.5% -0.30 0.0041 -0.459
49.00 57.00 35 36.7% 0.68 0.0042 -0.464 750 14.00 22.40 23 35.7% -0.32 0.0043 -0.470
46.00 53.50 12 36.5% 0.66 0.0044 -0.475 755 16.00 23.90 7 35.6% -0.34 0.0044 -0.480
43.00 50.40 1 26 36.5% 0.64 0.0045 -0.484 760 18.00 25.70 17 35.5% -0.37 0.0045 -0.488
40.00 47.40 12 36.4% 0.61 0.0046 -0.492 765 20.00 27.70 16 35.4% -0.39 0.0046 -0.495
37.00 44.50 17 36.2% 0.59 0.0047 -0.498 770 22.00 30.10 24 35.5% -0.41 0.0047 -0.500
34.00 42.00 4 36.1% 0.57 0.0048 -0.502 775 24.00 32.00 13 35.1% -0.44 0.0048 -0.504
31.00 39.20 33 35.7% 0.54 0.0049 -0.505 780 26.10 34.40 11 34.8% -0.46 0.0049 -0.506
29.00 36.70 1 68 35.9% 0.52 0.0049 -0.506 785 29.90 34.20 11 5 34.0% -0.49 0.0049 -0.507
26.00 34.60 250 32 35.7% 0.49 0.0049 -0.506 790 31.30 38.90 34 34.4% -0.51 0.0049 -0.506
24.00 32.20 66 35.7% 0.47 0.0049 -0.503 795 34.00 42.10 27 34.6% -0.53 0.0049 -0.503
22.00 30.00 1 61 35.6% 0.45 0.0049 -0.499 800 37.00 44.90 24 34.5% -0.56 0.0049 -0.499
20.00 28.00 17 35.6% 0.42 0.0048 -0.493 805 40.00 47.50 13 34.2% -0.58 0.0049 -0.493
18.00 26.00 101 35.5% 0.40 0.0048 -0.486 810 43.10 51.30 3 5 34.6% -0.61 0.0048 -0.486
16.00 24.10 14 35.2% 0.38 0.0047 -0.478 815 46.40 54.40 1 34.5% -0.63 0.0047 -0.477
14.00 22.60 1 8 35.1% 0.35 0.0046 -0.468 820 50.00 57.80 5 34.6% -0.65 0.0046 -0.468
13.00 21.00 10 5 35.4% 0.33 0.0045 -0.457 825 53.30 61.30 34.5% -0.67 0.0046 -0.457
11.20 19.40 1 9 35.0% 0.31 0.0044 -0.445 830 57.00 64.90 34.6% -0.69 0.0044 -0.445
10.30 18.20 9 35.3% 0.29 0.0042 -0.432 835 61.00 68.50 34.7% -0.71 0.0043 -0.433
10.30 17.20 3 12 36.3% 0.27 0.0041 -0.418 840 64.30 72.10 34.2% -0.73 0.0042 -0.420
8.00 15.80 2 6 35.4% 0.25 0.0040 -0.404 845 68.00 76.00 34.1% -0.75 0.0040 -0.406
8.00 14.50 1 30 36.0% 0.24 0.0038 -0.390 850 72.00 80.10 1 34.2% -0.77 0.0039 -0.392
6.00 13.70 24 35.4% 0.22 0.0036 -0.375 855 76.30 84.10 5 34.3% -0.79 0.0037 -0.378
5.00 12.90 4 18 35.4% 0.20 0.0035 -0.360 860 80.10 88.20 7 34.0% -0.80 0.0036 -0.363
5.20 8.80 4 12 33.6% 0.19 0.0033 -0.345 865 85.00 92.40 34.6% -0.82 0.0034 -0.348
3.70 11.70 4 36.0% 0.18 0.0032 -0.330 870 89.70 96.70 35.0% -0.83 0.0033 -0.334
2.80 10.60 4 35.6% 0.16 0.0030 -0.315 875 93.00 101.90 34.8% -0.85 0.0031 -0.320
3.60 8.00 2 108 35.1% 0.15 0.0028 -0.300 880 97.40 106.10 34.7% -0.86 0.0030 -0.305
1.00 8.90 7 34.6% 0.14 0.0027 -0.286 885 102.00 110.70 34.9% -0.87 0.0028 -0.292
0.6000 9.10 1 35.5% 0.13 0.0025 -0.272 890 106.80 115.30 35.4% -0.88 0.0027 -0.278
1.20 9.20 1 37.3% 0.12 0.0024 -0.258 895 111.00 119.90 35.0% -0.89 0.0026 -0.265
1.95 8.70 1 84 38.6% 0.11 0.0022 -0.245 900 115.70 124.50 35.1% -0.90 0.0024 -0.253
0.0500 8.50 5 37.4% 0.10 0.0021 -0.232 905 120.30 129.20 35.1% -0.91 0.0023 -0.240
0.0500 8.80 38.8% 0.10 0.0020 -0.220 910 125.10 134.00 35.5% -0.92 0.0022 -0.228
0.0500 8.80 39.8% 0.09 0.0019 -0.208 915 129.80 138.70 35.8% -0.93 0.0021 -0.217
0.0500 8.60 4 40.6% 0.08 0.0018 -0.196 920 134.60 143.50 35.6% -0.93 0.0020 -0.207
0.0500 8.20 41.1% 0.08 0.0016 -0.185 925 139.50 148.40 36.1% -0.94 0.0019 -0.197
0.0500 8.10 1 41.9% 0.07 0.0015 -0.175 930 144.30 153.20 36.0% -0.95 0.0018 -0.185
0 4.90 2 38.1% 0.06 0.0014 -0.165 935 149.20 158.00 36.4% -0.95 0.0016 -0.173
0.2000 7.90 14 44.1% 0.06 0.0014 -0.156 940 154.10 163.00 36.7% -0.96 0.0016 -0.167
0.0500 7.80 2 44.4% 0.05 0.0013 -0.147 945 159.00 167.90 36.9% -0.96 0.0015 -0.160
0.0500 8.10 45.7% 0.05 0.0012 -0.139 950 163.90 172.80 36.9% -0.97 0.0015 -0.150
0 7.70 3 46.1% 0.05 0.0011 -0.131 955 168.90 177.80 37.7% -0.97 0.0014 -0.141
0 4.90 11 42.5% 0.04 0.0010 -0.123 960 173.80 182.70 37.3% -0.98 0.0013 -0.127
0 4.90 43.3% 0.04 0.0010 -0.116 965 178.80 187.70 38.1% -0.98 0.0012 -0.115
0 4.90 44.1% 0.04 0.0009 -0.109 970 183.80 192.70 38.9% -0.99 0.0010 -0.113
0 4.90 45.0% 0.03 0.0008 -0.103 975 188.70 197.60 37.4% -0.99 0.0009 -0.108
0 7.50 75 50.2% 0.03 0.0008 -0.097 980 193.70 202.60 38.1% -0.99 0.0008 -0.104
0 4.90 46.6% 0.03 0.0007 -0.091 985 198.70 207.60 38.9% -0.99 0.0007 -0.099
0 4.90 1 47.4% 0.03 0.0007 -0.086 990 203.70 212.60 39.6% -1.00 0.0006 -0.086
0 4.90 48.2% 0.03 0.0006 -0.081 995 208.70 217.60 40.3% -1.00 0.0004 -0.085
0 4.90 69 49.0% 0.02 0.0006 -0.076 1,000 213.70 222.60 41.0% -1.00 0.0003 -0.085
0 5.10 50.5% 0.02 0.0005 -0.068 1,010 223.70 232.60 42.4% -1.00 0.0001 -0.085
0 4.90 3 52.0% 0.02 0.0004 -0.060 1,020 233.70 242.60 43.8% -1.00 0.0000 -0.085
0 4.90 53.6% 0.01 0.0004 -0.053 1,030 243.70 252.60 45.2% -1.00 0.0000 -0.085
0 4.90 1 55.0% 0.01 0.0004 -0.047 1,040 253.70 262.60 46.6% -1.00 0.0000 -0.085
0 4.90 56.5% 0.01 0.0003 -0.042 1,050 263.70 272.60 47.9% -1.00 0.0000 -0.085
0 4.90 1 57.9% 0.01 0.0003 -0.037 1,060 273.70 282.60 49.2% -1.00 0.0000 -0.085
0 4.90 1 59.4% 0.01 0.0002 -0.033 1,070 283.70 292.60 50.5% -1.00 0.0000 -0.085
0 5.10 60.8% 0.01 0.0002 -0.030 1,080 293.70 302.60 51.8% -1.00 0.0000 -0.085
0 4.90 62.1% 0.01 0.0002 -0.026 1,090 303.70 312.60 53.1% -1.00 0.0000 -0.085
0 4.90 63.5% 0.01 0.0002 -0.024 1,100 313.70 322.60 54.4% -1.00 0.0000 -0.085
0 4.90 64.8% 0.01 0.0001 -0.021 1,110 323.70 332.60 55.6% -1.00 0.0000 -0.085
0 4.90 66.1% 0.00 0.0001 -0.019 1,120 333.70 342.60 56.9% -1.00 0.0000 -0.085
0 4.90 2 67.5% 0.00 0.0001 -0.017 1,130 343.70 352.60 58.1% -1.00 0.0000 -0.085
0 4.90 13 68.7% 0.00 0.0001 -0.015 1,140 353.70 362.60 59.3% -1.00 0.0000 -0.085
0 4.90 6 70.0% 0.00 0.0001 -0.013 1,150 363.70 372.60 60.5% -1.00 0.0000 -0.085
0 5.10 1 71.3% 0.00 0.0001 -0.012 1,160 373.70 382.60 61.7% -1.00 0.0000 -0.085

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.

31%37%43%50%782.0645.0920.0
callsputs

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