REGN option chain Regeneron Pharmaceuticals, Inc.
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 ±6.4% (744.99–846.99) · ATM IV 47.9% · P/C open interest 0.76
| CALLS | Strike | PUTS | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bid | Ask | Vol | OIThe number of option contracts currently outstanding at a strike or expiration. High open interest shows where positions are concentrated. | IV | ΔModel 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). | Γ | Θ | Bid | Ask | Vol | OI | IV | Δ | Γ | Θ | |
| 382.40 | 391.80 | 157.0% | 1.00 | 0.0000 | -0.000 | 410 | 0 | 4.90 | 213.9% | -0.00 | 0.0000 | -0.049 | ||||
| 372.70 | 381.80 | 159.2% | 1.00 | 0.0000 | -0.005 | 420 | 0 | 4.90 | 207.0% | -0.00 | 0.0000 | -0.052 | ||||
| 362.70 | 371.80 | 153.1% | 1.00 | 0.0000 | -0.010 | 430 | 0 | 4.90 | 200.3% | -0.00 | 0.0000 | -0.056 | ||||
| 352.50 | 361.90 | 144.5% | 1.00 | 0.0000 | -0.016 | 440 | 0 | 4.90 | 193.7% | -0.00 | 0.0000 | -0.061 | ||||
| 342.50 | 352.00 | 141.2% | 1.00 | 0.0000 | -0.022 | 450 | 0 | 4.90 | 187.3% | -0.00 | 0.0000 | -0.065 | ||||
| 332.40 | 342.00 | 132.9% | 1.00 | 0.0001 | -0.028 | 460 | 0 | 4.90 | 181.0% | -0.00 | 0.0001 | -0.071 | ||||
| 322.80 | 331.90 | 134.2% | 1.00 | 0.0001 | -0.035 | 470 | 0 | 4.90 | 174.8% | -0.00 | 0.0001 | -0.076 | ||||
| 312.60 | 321.90 | 124.4% | 1.00 | 0.0001 | -0.043 | 480 | 0 | 4.90 | 168.7% | -0.00 | 0.0001 | -0.083 | ||||
| 302.80 | 311.90 | 123.4% | 0.99 | 0.0001 | -0.051 | 490 | 0 | 4.90 | 162.8% | -0.00 | 0.0001 | -0.089 | ||||
| 292.60 | 302.00 | 116.0% | 0.99 | 0.0001 | -0.060 | 500 | 0 | 4.90 | 156.9% | -0.01 | 0.0001 | -0.097 | ||||
| 282.50 | 292.00 | 108.5% | 0.99 | 0.0001 | -0.069 | 510 | 0 | 4.90 | 151.2% | -0.01 | 0.0001 | -0.105 | ||||
| 272.90 | 282.00 | 111.5% | 0.99 | 0.0001 | -0.079 | 520 | 0 | 4.90 | 145.5% | -0.01 | 0.0001 | -0.114 | ||||
| 262.60 | 272.00 | 100.8% | 0.99 | 0.0001 | -0.090 | 530 | 0 | 4.90 | 139.9% | -0.01 | 0.0001 | -0.124 | ||||
| 252.90 | 262.00 | 101.6% | 0.99 | 0.0002 | -0.103 | 540 | 0 | 4.90 | 134.5% | -0.01 | 0.0002 | -0.135 | ||||
| 242.60 | 252.00 | 91.1% | 0.99 | 0.0002 | -0.116 | 550 | 0 | 4.90 | 129.1% | -0.01 | 0.0002 | -0.147 | ||||
| 233.00 | 242.00 | 1 | 93.6% | 0.99 | 0.0002 | -0.131 | 560 | 0 | 4.90 | 123.8% | -0.01 | 0.0002 | -0.160 | |||
| 222.80 | 232.00 | 1 | 85.8% | 0.99 | 0.0003 | -0.147 | 570 | 0 | 4.90 | 118.5% | -0.01 | 0.0003 | -0.175 | |||
| 212.80 | 222.00 | 81.2% | 0.99 | 0.0003 | -0.164 | 580 | 0 | 4.90 | 113.4% | -0.01 | 0.0003 | -0.192 | ||||
| 203.10 | 212.00 | 81.2% | 0.98 | 0.0004 | -0.184 | 590 | 0 | 4.90 | 108.3% | -0.02 | 0.0004 | -0.210 | ||||
| 192.90 | 202.00 | 74.0% | 0.98 | 0.0004 | -0.205 | 600 | 0 | 4.90 | 103.2% | -0.02 | 0.0004 | -0.230 | ||||
| 183.20 | 192.00 | 73.7% | 0.98 | 0.0005 | -0.229 | 610 | 0 | 4.90 | 98.3% | -0.02 | 0.0005 | -0.253 | ||||
| 173.30 | 182.00 | 70.5% | 0.97 | 0.0006 | -0.255 | 620 | 0 | 4.90 | 93.3% | -0.03 | 0.0006 | -0.278 | ||||
| 163.40 | 172.00 | 67.2% | 0.97 | 0.0006 | -0.284 | 630 | 0 | 4.90 | 1 | 88.4% | -0.03 | 0.0006 | -0.306 | |||
| 153.60 | 162.00 | 64.7% | 0.97 | 0.0008 | -0.317 | 640 | 0 | 4.90 | 2 | 83.6% | -0.03 | 0.0008 | -0.337 | |||
| 143.40 | 152.00 | 58.8% | 0.96 | 0.0009 | -0.353 | 650 | 0 | 4.90 | 101 | 78.8% | -0.04 | 0.0009 | -0.372 | |||
| 134.00 | 142.00 | 17 | 59.2% | 0.95 | 0.0010 | -0.393 | 660 | 0 | 4.90 | 1 | 74.0% | -0.05 | 0.0010 | -0.411 | ||
| 128.90 | 138.00 | 62.0% | 0.95 | 0.0011 | -0.414 | 665 | 0 | 4.90 | 71.7% | -0.05 | 0.0011 | -0.432 | ||||
| 124.00 | 133.00 | 60.3% | 0.95 | 0.0012 | -0.437 | 670 | 0 | 4.90 | 2 | 69.3% | -0.05 | 0.0012 | -0.454 | |||
| 119.20 | 128.00 | 58.9% | 0.94 | 0.0013 | -0.461 | 675 | 0 | 4.90 | 67.0% | -0.06 | 0.0013 | -0.478 | ||||
| 114.40 | 123.00 | 1 | 57.5% | 0.94 | 0.0014 | -0.487 | 680 | 0 | 4.90 | 7 | 64.6% | -0.06 | 0.0014 | -0.503 | ||
| 109.50 | 118.00 | 55.7% | 0.93 | 0.0016 | -0.513 | 685 | 0 | 4.90 | 62.2% | -0.07 | 0.0016 | -0.529 | ||||
| 104.90 | 113.00 | 54.9% | 0.92 | 0.0017 | -0.541 | 690 | 0 | 4.90 | 34 | 59.9% | -0.08 | 0.0017 | -0.556 | |||
| 100.10 | 108.00 | 53.3% | 0.92 | 0.0018 | -0.571 | 695 | 0 | 4.90 | 57.5% | -0.08 | 0.0019 | -0.585 | ||||
| 95.40 | 104.00 | 1 | 54.9% | 0.91 | 0.0020 | -0.601 | 700 | 0 | 4.90 | 7 | 55.2% | -0.09 | 0.0020 | -0.615 | ||
| 90.80 | 99.00 | 53.6% | 0.90 | 0.0022 | -0.633 | 705 | 0.0500 | 5.30 | 1 | 54.0% | -0.10 | 0.0022 | -0.647 | |||
| 86.20 | 94.00 | 52.2% | 0.89 | 0.0024 | -0.667 | 710 | 0.1000 | 8.70 | 1 | 2 | 59.2% | -0.11 | 0.0024 | -0.680 | ||
| 81.10 | 90.00 | 51.8% | 0.88 | 0.0026 | -0.702 | 715 | 0.0500 | 8.90 | 1 | 56.9% | -0.12 | 0.0026 | -0.714 | |||
| 76.70 | 85.00 | 5 | 50.5% | 0.87 | 0.0028 | -0.738 | 720 | 0.0500 | 9.10 | 1 | 4 | 54.6% | -0.13 | 0.0028 | -0.750 | |
| 72.10 | 81.00 | 50.7% | 0.86 | 0.0030 | -0.775 | 725 | 0.0500 | 9.40 | 1 | 52.5% | -0.14 | 0.0030 | -0.787 | |||
| 67.70 | 77.00 | 11 | 50.8% | 0.85 | 0.0033 | -0.814 | 730 | 0.2500 | 9.90 | 1 | 51.1% | -0.15 | 0.0033 | -0.825 | ||
| 65.50 | 74.00 | 49.2% | 0.84 | 0.0034 | -0.833 | 732.5 | 0.5500 | 10.00 | 50.4% | -0.16 | 0.0034 | -0.844 | ||||
| 63.40 | 72.00 | 49.3% | 0.83 | 0.0036 | -0.853 | 735 | 0.8500 | 10.00 | 1 | 49.5% | -0.17 | 0.0036 | -0.864 | |||
| 61.20 | 70.00 | 49.1% | 0.82 | 0.0037 | -0.872 | 737.5 | 1.20 | 10.90 | 50.0% | -0.18 | 0.0037 | -0.883 | ||||
| 59.10 | 68.00 | 13 | 49.1% | 0.82 | 0.0038 | -0.892 | 740 | 1.75 | 10.00 | 4 | 48.1% | -0.18 | 0.0038 | -0.903 | ||
| 57.00 | 66.00 | 48.9% | 0.81 | 0.0040 | -0.912 | 742.5 | 2.15 | 11.00 | 48.7% | -0.19 | 0.0040 | -0.922 | ||||
| 54.90 | 64.00 | 48.7% | 0.80 | 0.0041 | -0.932 | 745 | 2.60 | 12.00 | 2 | 49.3% | -0.20 | 0.0041 | -0.942 | |||
| 52.90 | 62.00 | 48.6% | 0.79 | 0.0043 | -0.952 | 747.5 | 3.00 | 12.00 | 48.3% | -0.21 | 0.0043 | -0.962 | ||||
| 51.40 | 60.00 | 13 | 49.0% | 0.78 | 0.0044 | -0.971 | 750 | 3.50 | 13.00 | 6 | 48.8% | -0.22 | 0.0044 | -0.982 | ||
| 48.90 | 58.00 | 48.1% | 0.77 | 0.0046 | -0.991 | 752.5 | 4.00 | 13.60 | 48.6% | -0.23 | 0.0046 | -1.001 | ||||
| 47.40 | 56.00 | 33 | 48.4% | 0.76 | 0.0047 | -1.010 | 755 | 4.60 | 14.00 | 3 | 48.3% | -0.24 | 0.0047 | -1.020 | ||
| 45.70 | 55.00 | 49.5% | 0.75 | 0.0049 | -1.029 | 757.5 | 5.20 | 14.60 | 48.1% | -0.25 | 0.0049 | -1.038 | ||||
| 44.50 | 53.00 | 9 | 49.9% | 0.73 | 0.0050 | -1.047 | 760 | 5.80 | 14.10 | 1 | 7 | 46.6% | -0.27 | 0.0050 | -1.057 | |
| 40.30 | 49.00 | 48.4% | 0.71 | 0.0053 | -1.082 | 765 | 7.10 | 15.70 | 2 | 46.5% | -0.29 | 0.0054 | -1.091 | |||
| 38.10 | 46.00 | 38 | 50.0% | 0.68 | 0.0056 | -1.114 | 770 | 8.60 | 15.40 | 1 | 2 | 44.3% | -0.32 | 0.0056 | -1.123 | |
| 34.50 | 42.00 | 4 | 48.7% | 0.66 | 0.0059 | -1.143 | 775 | 10.30 | 18.90 | 2 | 4 | 46.1% | -0.35 | 0.0059 | -1.151 | |
| 31.40 | 39.00 | 50 | 48.6% | 0.63 | 0.0061 | -1.167 | 780 | 12.60 | 20.00 | 12 | 45.6% | -0.37 | 0.0061 | -1.175 | ||
| 28.20 | 36.00 | 3 | 48.2% | 0.60 | 0.0063 | -1.186 | 785 | 14.20 | 23.00 | 46.0% | -0.41 | 0.0063 | -1.193 | |||
| 24.50 | 33.00 | 19 | 47.0% | 0.56 | 0.0064 | -1.199 | 790 | 16.40 | 24.80 | 34 | 45.5% | -0.44 | 0.0065 | -1.206 | ||
| 24.40 | 31.00 | 3 | 49.9% | 0.53 | 0.0065 | -1.206 | 795 | 18.70 | 27.90 | 46.0% | -0.47 | 0.0066 | -1.212 | |||
| 19.80 | 27.70 | 42 | 47.0% | 0.50 | 0.0066 | -1.206 | 800 | 21.20 | 30.00 | 43 | 45.5% | -0.50 | 0.0066 | -1.212 | ||
| 19.50 | 26.00 | 2 | 49.4% | 0.47 | 0.0066 | -1.200 | 805 | 24.00 | 33.00 | 3 | 45.8% | -0.54 | 0.0066 | -1.205 | ||
| 16.10 | 23.30 | 5 | 47.6% | 0.43 | 0.0065 | -1.188 | 810 | 26.70 | 36.00 | 3 | 45.6% | -0.57 | 0.0065 | -1.192 | ||
| 15.70 | 22.00 | 49.7% | 0.40 | 0.0064 | -1.170 | 815 | 30.00 | 38.90 | 45.7% | -0.60 | 0.0064 | -1.174 | ||||
| 14.10 | 19.00 | 6 | 19 | 48.8% | 0.37 | 0.0062 | -1.147 | 820 | 33.00 | 41.90 | 6 | 45.3% | -0.63 | 0.0062 | -1.150 | |
| 11.20 | 17.00 | 3 | 47.2% | 0.34 | 0.0060 | -1.119 | 825 | 36.20 | 45.40 | 45.2% | -0.66 | 0.0060 | -1.121 | |||
| 9.30 | 16.40 | 12 | 47.8% | 0.32 | 0.0058 | -1.088 | 830 | 40.00 | 49.10 | 45.7% | -0.69 | 0.0058 | -1.089 | |||
| 6.10 | 15.70 | 46.6% | 0.29 | 0.0055 | -1.054 | 835 | 43.40 | 53.00 | 45.8% | -0.71 | 0.0055 | -1.054 | ||||
| 6.00 | 14.00 | 6 | 47.5% | 0.27 | 0.0052 | -1.018 | 840 | 47.20 | 56.90 | 46.0% | -0.73 | 0.0053 | -1.018 | |||
| 4.20 | 13.00 | 46.9% | 0.25 | 0.0050 | -0.980 | 845 | 51.10 | 60.80 | 46.0% | -0.76 | 0.0050 | -0.979 | ||||
| 6.00 | 9.50 | 7 | 47.4% | 0.23 | 0.0047 | -0.942 | 850 | 55.10 | 64.80 | 46.0% | -0.78 | 0.0047 | -0.940 | |||
| 1.95 | 11.00 | 46.5% | 0.21 | 0.0044 | -0.903 | 855 | 59.20 | 68.10 | 44.9% | -0.80 | 0.0044 | -0.901 | ||||
| 2.10 | 10.40 | 2 | 48.2% | 0.19 | 0.0042 | -0.864 | 860 | 63.40 | 73.00 | 45.9% | -0.81 | 0.0042 | -0.862 | |||
| 0.4500 | 10.00 | 47.4% | 0.17 | 0.0039 | -0.826 | 865 | 67.70 | 76.70 | 44.9% | -0.83 | 0.0039 | -0.823 | ||||
| 0.0500 | 9.70 | 29 | 48.5% | 0.16 | 0.0036 | -0.789 | 870 | 72.10 | 80.80 | 1 | 44.4% | -0.84 | 0.0037 | -0.786 | ||
| 0.0500 | 9.40 | 50.1% | 0.15 | 0.0034 | -0.753 | 875 | 76.50 | 84.90 | 43.4% | -0.86 | 0.0034 | -0.749 | ||||
| 0.0500 | 9.10 | 2 | 51.7% | 0.14 | 0.0032 | -0.717 | 880 | 81.00 | 90.80 | 46.1% | -0.87 | 0.0032 | -0.714 | |||
| 0.0500 | 8.90 | 53.3% | 0.13 | 0.0030 | -0.684 | 885 | 85.70 | 94.50 | 44.3% | -0.88 | 0.0030 | -0.680 | ||||
| 0.0500 | 8.70 | 1 | 20 | 54.9% | 0.12 | 0.0028 | -0.651 | 890 | 90.30 | 99.70 | 45.6% | -0.89 | 0.0028 | -0.647 | ||
| 0.0500 | 8.50 | 56.5% | 0.11 | 0.0026 | -0.620 | 895 | 95.10 | 104.40 | 45.9% | -0.90 | 0.0026 | -0.617 | ||||
| 0.9500 | 8.40 | 1 | 4 | 59.9% | 0.10 | 0.0024 | -0.590 | 900 | 100.00 | 108.70 | 45.0% | -0.91 | 0.0024 | -0.587 | ||
| 0.0500 | 8.20 | 59.7% | 0.09 | 0.0022 | -0.562 | 905 | 104.60 | 113.70 | 45.0% | -0.91 | 0.0023 | -0.559 | ||||
| 0 | 4.90 | 1 | 54.0% | 0.08 | 0.0021 | -0.535 | 910 | 109.40 | 118.50 | 44.8% | -0.92 | 0.0021 | -0.532 | |||
| 0 | 4.90 | 4 | 57.4% | 0.07 | 0.0018 | -0.484 | 920 | 119.10 | 128.20 | 44.0% | -0.93 | 0.0019 | -0.482 | |||
| 0 | 4.90 | 2 | 60.6% | 0.06 | 0.0016 | -0.439 | 930 | 129.00 | 138.30 | 46.7% | -0.94 | 0.0016 | -0.437 | |||
| 0 | 4.90 | 3 | 63.8% | 0.05 | 0.0014 | -0.399 | 940 | 139.00 | 148.20 | 48.5% | -0.95 | 0.0014 | -0.396 | |||
| 0 | 4.90 | 6 | 67.0% | 0.05 | 0.0012 | -0.362 | 950 | 149.00 | 157.90 | 46.5% | -0.96 | 0.0013 | -0.359 | |||
| 0 | 4.90 | 1 | 70.0% | 0.04 | 0.0011 | -0.330 | 960 | 159.00 | 168.10 | 52.5% | -0.96 | 0.0011 | -0.325 | |||
| 0 | 4.90 | 73.0% | 0.04 | 0.0009 | -0.300 | 970 | 169.00 | 178.10 | 55.0% | -0.97 | 0.0010 | -0.294 | ||||
| 0 | 4.90 | 75.9% | 0.03 | 0.0008 | -0.274 | 980 | 179.00 | 188.10 | 57.4% | -0.97 | 0.0009 | -0.265 | ||||
| 0 | 4.90 | 78.8% | 0.03 | 0.0007 | -0.250 | 990 | 189.00 | 198.10 | 59.8% | -0.98 | 0.0008 | -0.240 | ||||
| 0 | 4.90 | 81.7% | 0.02 | 0.0006 | -0.229 | 1,000 | 199.00 | 208.10 | 62.2% | -0.98 | 0.0007 | -0.218 | ||||
| 0 | 4.90 | 87.2% | 0.02 | 0.0005 | -0.192 | 1,020 | 219.00 | 228.10 | 66.8% | -0.99 | 0.0006 | -0.175 | ||||
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 — Oct 30, 2026
Volatility page →Implied volatility per strike for this expiration. Out-of-the-money puts usually price higher IV than calls — the skew.