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REGN option chain Regeneron Pharmaceuticals, Inc.

Cboe delayed options data · as of 12:40 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 ±9.3% (718.10–865.90) · ATM IV 37.8% · 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
388.10 397.00 95.0% 1.00 0.0000 -0.015 400 0 4.90 6 118.6% -0.00 0.0000 -0.015
378.20 387.00 92.1% 1.00 0.0000 -0.016 410 0 4.90 114.8% -0.00 0.0000 -0.017
368.20 377.10 89.2% 1.00 0.0000 -0.018 420 0 4.90 23 111.0% -0.00 0.0000 -0.019
358.20 367.10 85.4% 1.00 0.0000 -0.020 430 0 4.90 3 107.4% -0.00 0.0000 -0.021
348.30 357.20 83.6% 1.00 0.0000 -0.022 440 0 4.90 9 103.8% -0.00 0.0000 -0.023
339.10 347.20 2 86.4% 1.00 0.0001 -0.025 450 0 4.90 18 100.4% -0.00 0.0001 -0.026
328.50 337.30 79.1% 1.00 0.0001 -0.027 460 0 4.90 1 12 96.9% -0.00 0.0001 -0.029
318.60 327.30 76.4% 0.99 0.0001 -0.030 470 0 4.90 2 93.6% -0.00 0.0001 -0.032
308.50 317.40 8 73.0% 0.99 0.0001 -0.034 480 0 4.90 6 90.3% -0.01 0.0001 -0.035
298.50 307.40 69.7% 0.99 0.0001 -0.038 490 0 4.90 87.1% -0.01 0.0001 -0.039
288.60 297.50 68.0% 0.99 0.0001 -0.042 500 0 4.90 6 83.9% -0.01 0.0001 -0.044
268.70 277.60 3 63.8% 0.99 0.0002 -0.052 520 0 4.90 28 77.8% -0.01 0.0002 -0.054
248.90 257.80 1 59.5% 0.99 0.0002 -0.065 540 0 4.90 43 71.8% -0.01 0.0002 -0.067
229.10 238.00 4 58.0% 0.98 0.0003 -0.081 560 0 4.90 83 66.0% -0.02 0.0003 -0.083
219.20 228.00 53.4% 0.98 0.0004 -0.090 570 0 4.90 63.2% -0.02 0.0004 -0.092
214.30 223.00 53.3% 0.98 0.0004 -0.095 575 0 4.90 61.8% -0.02 0.0004 -0.097
209.40 218.20 2 52.3% 0.98 0.0004 -0.100 580 0 4.90 46 60.4% -0.02 0.0004 -0.103
204.40 213.30 53.4% 0.97 0.0005 -0.106 585 0 4.90 59.0% -0.03 0.0005 -0.108
199.50 208.40 50.7% 0.97 0.0005 -0.112 590 0 4.90 5 57.6% -0.03 0.0005 -0.114
194.60 203.50 50.0% 0.97 0.0005 -0.118 595 0 4.90 1 56.3% -0.03 0.0006 -0.120
189.70 198.60 5 49.3% 0.97 0.0006 -0.124 600 0.0500 7.40 149 60.0% -0.03 0.0006 -0.127
184.80 193.00 46.2% 0.96 0.0006 -0.131 605 0 4.90 53.5% -0.04 0.0006 -0.134
180.70 188.80 49.9% 0.96 0.0007 -0.138 610 0.0500 7.50 4 2 57.3% -0.04 0.0007 -0.141
175.80 184.00 49.3% 0.96 0.0007 -0.146 615 0 4.90 3 50.9% -0.04 0.0007 -0.149
170.20 179.00 14 46.4% 0.96 0.0008 -0.154 620 0 4.90 37 49.5% -0.04 0.0008 -0.157
165.40 174.00 45.5% 0.95 0.0008 -0.162 625 0 4.90 48.2% -0.05 0.0008 -0.165
160.50 169.00 45.4% 0.95 0.0009 -0.171 630 0.0500 7.80 52.1% -0.05 0.0009 -0.174
155.70 164.60 44.9% 0.94 0.0010 -0.180 635 0 4.90 1 45.6% -0.06 0.0010 -0.183
150.90 159.80 9 44.3% 0.94 0.0010 -0.189 640 0.5000 8.30 26 50.7% -0.06 0.0010 -0.192
146.20 155.00 43.9% 0.94 0.0011 -0.199 645 0 4.90 43.0% -0.07 0.0011 -0.202
141.40 150.00 2 42.8% 0.93 0.0012 -0.209 650 0 4.90 16 41.7% -0.07 0.0012 -0.212
136.70 145.60 43.0% 0.92 0.0013 -0.220 655 0.0500 8.50 14 46.1% -0.08 0.0013 -0.224
132.00 140.90 10 42.5% 0.92 0.0014 -0.231 660 0.0500 8.50 143 44.7% -0.08 0.0014 -0.234
127.30 136.00 6 41.6% 0.91 0.0015 -0.243 665 0.0500 8.20 19 42.8% -0.09 0.0015 -0.246
122.70 131.50 5 41.5% 0.91 0.0016 -0.255 670 0.0500 9.10 65 42.6% -0.10 0.0016 -0.258
118.10 127.00 14 41.2% 0.90 0.0017 -0.267 675 0.0500 6.40 5 37.6% -0.10 0.0017 -0.270
113.30 122.20 3 42.1% 0.89 0.0018 -0.280 680 0.4500 6.60 14 37.1% -0.11 0.0018 -0.283
108.30 118.00 5 39.7% 0.88 0.0019 -0.293 685 0.8000 9.30 3 39.5% -0.12 0.0019 -0.296
104.00 113.00 45 38.9% 0.87 0.0020 -0.306 690 0.9000 9.90 19 38.8% -0.13 0.0020 -0.309
100.00 108.40 8 38.9% 0.86 0.0022 -0.319 695 1.80 10.40 11 38.7% -0.14 0.0022 -0.322
95.10 105.00 20 39.3% 0.85 0.0023 -0.333 700 3.10 10.20 62 38.3% -0.15 0.0023 -0.336
91.00 100.70 3 38.9% 0.84 0.0024 -0.347 705 3.50 11.80 9 38.6% -0.16 0.0024 -0.349
87.00 96.60 5 38.9% 0.83 0.0026 -0.361 710 4.10 12.60 8 38.2% -0.17 0.0026 -0.363
83.00 92.50 8 38.8% 0.81 0.0027 -0.374 715 4.80 13.60 11 38.0% -0.19 0.0027 -0.377
79.00 88.40 12 38.5% 0.80 0.0028 -0.388 720 6.30 13.50 20 37.4% -0.20 0.0029 -0.391
75.00 84.50 18 38.4% 0.79 0.0030 -0.402 725 7.10 15.70 9 37.9% -0.22 0.0030 -0.404
71.50 80.70 9 38.4% 0.77 0.0031 -0.415 730 8.30 16.50 24 37.6% -0.23 0.0032 -0.417
67.80 75.00 4 37.1% 0.76 0.0033 -0.428 735 9.00 18.10 8 37.3% -0.25 0.0033 -0.430
64.60 71.40 12 37.3% 0.74 0.0034 -0.440 740 11.00 18.70 1 159 37.2% -0.26 0.0034 -0.442
61.10 68.80 11 37.8% 0.72 0.0036 -0.452 745 13.00 20.50 16 37.7% -0.28 0.0036 -0.454
57.70 64.40 35 37.2% 0.70 0.0037 -0.463 750 14.00 21.70 23 37.0% -0.30 0.0037 -0.465
54.10 62.00 12 37.5% 0.68 0.0038 -0.474 755 15.90 23.90 7 37.4% -0.32 0.0038 -0.475
51.20 58.10 26 37.2% 0.67 0.0039 -0.483 760 17.90 26.00 17 37.6% -0.34 0.0040 -0.484
48.10 55.90 1 12 37.7% 0.65 0.0040 -0.491 765 19.60 27.90 16 37.4% -0.36 0.0040 -0.492
45.50 52.10 17 37.3% 0.62 0.0041 -0.499 770 21.60 29.80 24 37.3% -0.38 0.0042 -0.500
42.30 49.60 4 37.4% 0.60 0.0042 -0.505 775 23.70 32.00 13 37.3% -0.40 0.0042 -0.505
39.20 47.00 33 37.3% 0.58 0.0043 -0.509 780 26.40 34.00 5 6 37.4% -0.42 0.0043 -0.510
36.80 44.00 68 37.1% 0.56 0.0044 -0.513 785 28.30 36.60 5 37.3% -0.44 0.0044 -0.514
36.30 42.00 12 24 38.5% 0.54 0.0044 -0.515 790 30.50 39.00 2 34 37.1% -0.47 0.0044 -0.516
31.70 39.00 66 37.0% 0.52 0.0044 -0.516 795 33.10 41.50 27 37.0% -0.49 0.0044 -0.517
29.60 36.80 61 37.1% 0.49 0.0044 -0.515 800 35.30 44.00 24 36.6% -0.51 0.0044 -0.516
26.80 34.50 17 36.7% 0.47 0.0044 -0.513 805 38.70 46.90 13 37.0% -0.53 0.0044 -0.514
25.10 32.40 14 97 37.0% 0.45 0.0044 -0.510 810 41.50 49.40 5 36.7% -0.55 0.0044 -0.511
22.50 30.30 14 36.5% 0.43 0.0044 -0.505 815 44.50 52.70 1 36.8% -0.57 0.0044 -0.507
20.40 29.20 8 36.8% 0.41 0.0043 -0.499 820 47.50 55.70 5 36.7% -0.60 0.0044 -0.501
18.80 26.50 5 36.4% 0.39 0.0043 -0.492 825 50.70 58.80 36.6% -0.62 0.0043 -0.495
16.70 25.70 9 36.7% 0.37 0.0042 -0.484 830 53.00 62.40 36.2% -0.64 0.0042 -0.488
15.10 23.90 9 36.5% 0.35 0.0041 -0.475 835 56.40 65.80 36.1% -0.66 0.0042 -0.479
14.10 22.50 12 36.8% 0.33 0.0040 -0.465 840 60.00 69.00 36.0% -0.68 0.0041 -0.470
12.00 20.00 6 35.8% 0.31 0.0039 -0.455 845 63.40 72.80 35.9% -0.69 0.0040 -0.461
11.70 19.50 30 36.8% 0.29 0.0038 -0.444 850 67.00 76.50 1 35.7% -0.71 0.0039 -0.450
9.60 18.50 24 36.4% 0.28 0.0037 -0.432 855 72.00 79.90 5 36.4% -0.73 0.0038 -0.439
10.10 16.90 4 18 37.2% 0.26 0.0036 -0.420 860 75.70 83.90 7 36.3% -0.74 0.0036 -0.428
8.40 16.20 12 37.0% 0.25 0.0034 -0.408 865 79.50 87.90 36.2% -0.76 0.0035 -0.417
6.20 15.70 4 36.6% 0.23 0.0033 -0.395 870 83.60 91.70 36.1% -0.78 0.0034 -0.405
5.10 14.20 2 2 36.0% 0.22 0.0032 -0.382 875 87.80 96.30 36.6% -0.79 0.0033 -0.393
4.80 11.00 5 108 34.6% 0.20 0.0031 -0.369 880 91.50 100.50 36.2% -0.80 0.0032 -0.381
4.10 12.60 36.5% 0.19 0.0029 -0.356 885 96.30 104.80 36.8% -0.82 0.0031 -0.369
3.00 12.60 1 36.8% 0.18 0.0028 -0.344 890 100.00 109.10 36.3% -0.83 0.0029 -0.357
2.10 11.80 1 36.5% 0.17 0.0027 -0.331 895 104.00 113.60 36.1% -0.84 0.0028 -0.346
2.00 11.00 84 36.9% 0.16 0.0026 -0.319 900 108.20 118.00 35.9% -0.85 0.0027 -0.334
1.00 10.80 5 36.8% 0.15 0.0025 -0.306 905 113.00 122.50 36.1% -0.86 0.0026 -0.323
1.00 10.00 37.1% 0.14 0.0023 -0.294 910 117.20 127.00 35.9% -0.87 0.0025 -0.312
0.2500 9.70 37.1% 0.13 0.0022 -0.282 915 122.70 131.60 35.1% -0.88 0.0024 -0.301
0.0500 9.30 4 37.4% 0.12 0.0021 -0.271 920 127.10 136.00 36.5% -0.89 0.0023 -0.290
0.9000 9.10 39.1% 0.11 0.0020 -0.260 925 131.80 140.90 35.7% -0.90 0.0022 -0.280
0.6000 8.90 1 39.5% 0.11 0.0019 -0.249 930 136.50 145.40 36.8% -0.90 0.0021 -0.269
0.0500 8.80 2 39.7% 0.10 0.0018 -0.238 935 141.20 150.10 36.8% -0.91 0.0020 -0.260
0.0500 8.60 14 40.4% 0.09 0.0017 -0.228 940 146.00 155.00 36.0% -0.92 0.0019 -0.251
0.0500 8.80 2 41.6% 0.09 0.0016 -0.218 945 150.80 159.70 37.2% -0.92 0.0018 -0.242
0.0500 8.40 42.0% 0.08 0.0016 -0.209 950 155.70 164.50 37.5% -0.93 0.0017 -0.232
0 4.90 3 37.9% 0.08 0.0015 -0.200 955 160.50 169.40 37.6% -0.94 0.0016 -0.223
0.0500 8.20 11 43.5% 0.07 0.0014 -0.191 960 165.40 174.20 37.8% -0.94 0.0015 -0.215
0 4.90 39.5% 0.07 0.0013 -0.183 965 170.20 179.00 37.5% -0.95 0.0015 -0.206
0.0500 8.30 45.4% 0.06 0.0012 -0.175 970 175.10 184.00 38.0% -0.95 0.0014 -0.198
0.0500 8.20 46.1% 0.06 0.0012 -0.167 975 180.10 188.90 38.4% -0.96 0.0013 -0.190
0 4.90 75 41.9% 0.06 0.0011 -0.160 980 185.00 193.90 38.8% -0.96 0.0012 -0.181
0.0500 7.80 47.2% 0.05 0.0011 -0.152 985 189.90 198.80 38.8% -0.96 0.0012 -0.173
0.0500 7.80 1 48.1% 0.05 0.0010 -0.146 990 194.90 203.70 39.1% -0.97 0.0011 -0.165
0.0500 7.70 48.7% 0.05 0.0010 -0.139 995 199.80 208.70 39.4% -0.97 0.0010 -0.155
0.0500 7.70 69 49.5% 0.04 0.0009 -0.133 1,000 204.80 213.70 40.1% -0.97 0.0010 -0.146
0 4.90 46.5% 0.04 0.0008 -0.122 1,010 214.70 223.60 40.2% -0.98 0.0008 -0.129
0 4.90 3 47.9% 0.03 0.0007 -0.111 1,020 224.70 233.50 40.7% -0.98 0.0007 -0.113
0 4.90 49.4% 0.03 0.0006 -0.101 1,030 234.70 243.50 42.0% -0.99 0.0006 -0.094
0 4.90 1 50.8% 0.03 0.0006 -0.093 1,040 244.70 253.50 43.3% -0.99 0.0005 -0.078
0 4.90 52.2% 0.02 0.0005 -0.085 1,050 254.70 263.50 44.6% -0.99 0.0004 -0.063
0 4.90 1 53.6% 0.02 0.0005 -0.077 1,060 264.70 273.50 45.9% -0.99 0.0004 -0.050
0 4.90 1 54.9% 0.02 0.0004 -0.071 1,070 274.70 283.50 47.1% -0.99 0.0003 -0.039
0 4.90 56.3% 0.02 0.0004 -0.065 1,080 284.70 293.50 48.3% -1.00 0.0002 -0.029
0 4.90 57.6% 0.02 0.0004 -0.059 1,090 294.70 303.50 49.5% -1.00 0.0002 -0.021
0 4.90 58.9% 0.01 0.0003 -0.054 1,100 304.70 313.50 50.7% -1.00 0.0001 -0.015
0 4.90 60.2% 0.01 0.0003 -0.050 1,110 314.70 323.50 51.9% -1.00 0.0001 -0.010
0 4.90 61.5% 0.01 0.0003 -0.046 1,120 324.70 333.50 53.1% -1.00 0.0001 -0.007
0 4.90 2 62.7% 0.01 0.0002 -0.042 1,130 334.70 343.50 54.2% -1.00 0.0001 -0.005
0 4.90 13 64.0% 0.01 0.0002 -0.039 1,140 344.70 353.50 55.4% -1.00 0.0000 -0.003
0 4.90 6 65.2% 0.01 0.0002 -0.036 1,150 354.70 363.50 56.5% -1.00 0.0000 -0.001
0 4.90 1 66.4% 0.01 0.0002 -0.033 1,160 364.70 373.50 57.6% -1.00 0.0000 -0.001

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%43%49%792.0650.0930.0
callsputs

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