Detailed ARM options chain for 2026-12-18 – real-time call and put contracts with last price, bid/ask, volume, open interest, implied volatility, and in-the-money status.
Tip: Use this page together with the price chart, short-term prediction, and multi-expiry options overview to build a complete view of positioning and risk for ARM.
This page focuses on a single options expiration date for ARM – 2026-12-18 – and lists every available call and put contract in a clean chain view. Each row shows the contract symbol, last trade, bid/ask quotes, daily change, percentage change, trading volume, open interest, implied volatility (IV), and whether the option is currently in-the-money (ITM).
Traders often use a specific expiry’s options chain to identify key strike levels, unusual activity, and risk hedging behavior. High open interest around certain strikes or sudden spikes in volume can reveal where large traders and market makers are concentrating their positions for ARM into 2026-12-18.
This ARM 2026-12-18 options chain provides a complete strike-by-strike breakdown of pricing, liquidity and volatility. By comparing changes in volume, open interest distribution and IV across calls and puts, traders can understand where the market is positioning ahead of this specific expiration date.
The table below shows all call options on ARM expiring on 2026-12-18. You can quickly compare strikes, pricing, liquidity (volume and open interest), and implied volatility to spot popular strike zones and potential directional bets.
| Contract | Strike | Last | Bid | Ask | Volume | Open Int. | Implied Vol | ITM |
|---|---|---|---|---|---|---|---|---|
| ARM 261218C00115000 | 115.00 | 161.29 | 131.7 | 135.9 | 1 | 5813 | 92.87% | YES |
| ARM 261218C00110000 | 110.00 | 187.5 | 137.05 | 141.3 | 2 | 5349 | 100.68% | YES |
| ARM 261218C00130000 | 130.00 | 115 | 118.45 | 122 | 22 | 4948 | 89.18% | YES |
| ARM 261218C00120000 | 120.00 | 134.79 | 127.75 | 131.1 | 2 | 2664 | 93.03% | YES |
| ARM 261218C00150000 | 150.00 | 95.95 | 100.5 | 103.95 | 5 | 2625 | 81.94% | YES |
| ARM 261218C00270000 | 270.00 | 30.1 | 29.25 | 31.65 | 132 | 2490 | 72.60% | |
| ARM 261218C00250000 | 250.00 | 37.63 | 36.45 | 39.05 | 4 | 2200 | 72.48% | |
| ARM 261218C00600000 | 600.00 | 2.6 | 1.97 | 2.82 | 24 | 1827 | 87.34% | |
| ARM 261218C00610000 | 610.00 | 2.6 | 2 | 3.1 | 31 | 1517 | 89.55% | |
| ARM 261218C00420000 | 420.00 | 6.43 | 6.55 | 8.05 | 3 | 1296 | 78.22% | |
| ARM 261218C00450000 | 450.00 | 6.75 | 4.85 | 7.3 | 59 | 1009 | 80.65% | |
| ARM 261218C00300000 | 300.00 | 22.13 | 20.9 | 23.1 | 403 | 1008 | 72.91% | |
| ARM 261218C00125000 | 125.00 | 128.65 | 123.2 | 126.05 | 1 | 996 | 89.88% | YES |
| ARM 261218C00170000 | 170.00 | 89.92 | 83.75 | 87.1 | 1 | 971 | 77.01% | YES |
| ARM 261218C00200000 | 200.00 | 78 | 62 | 65 | 12 | 918 | 73.03% | YES |
| ARM 261218C00140000 | 140.00 | 115.6 | 108.9 | 112.3 | 2 | 904 | 82.64% | YES |
| ARM 261218C00670000 | 670.00 | 1.58 | 1.23 | 2.55 | 51 | 744 | 91.65% | |
| ARM 261218C00550000 | 550.00 | 3.65 | 2.15 | 4.05 | 2 | 687 | 84.91% | |
| ARM 261218C00350000 | 350.00 | 14.45 | 12.4 | 13.2 | 26 | 686 | 73.53% | |
| ARM 261218C00290000 | 290.00 | 31.8 | 23.45 | 25.45 | 1 | 655 | 72.66% | |
| ARM 261218C00180000 | 180.00 | 85.43 | 76.3 | 78.95 | 1 | 602 | 75.27% | YES |
| ARM 261218C00230000 | 230.00 | 46.8 | 45.25 | 46.85 | 4 | 590 | 71.30% | YES |
| ARM 261218C00440000 | 440.00 | 5.97 | 5.35 | 8 | 2 | 433 | 80.61% | |
| ARM 261218C00260000 | 260.00 | 33.5 | 32.4 | 35 | 6 | 373 | 72.14% | |
| ARM 261218C00630000 | 630.00 | 2.3 | 1.55 | 3 | 18 | 368 | 90.10% | |
| ARM 261218C00210000 | 210.00 | 57.95 | 56.15 | 59.2 | 22 | 352 | 73.36% | YES |
| ARM 261218C00400000 | 400.00 | 8.45 | 7.7 | 8.4 | 16 | 339 | 75.71% | |
| ARM 261218C00240000 | 240.00 | 42.2 | 40.75 | 43.3 | 2 | 338 | 72.53% | |
| ARM 261218C00470000 | 470.00 | 4.93 | 4.45 | 5.35 | 1 | 323 | 80.20% | |
| ARM 261218C00320000 | 320.00 | 19.44 | 16.85 | 18.55 | 19 | 308 | 73.14% | |
| ARM 261218C00100000 | 100.00 | 185 | 139 | 143.3 | 3 | 296 | 0.00% | YES |
| ARM 261218C00175000 | 175.00 | 78.31 | 79.95 | 83.15 | 3 | 286 | 76.33% | YES |
| ARM 261218C00390000 | 390.00 | 9.3 | 8.45 | 9.15 | 1 | 281 | 75.27% | |
| ARM 261218C00500000 | 500.00 | 4.54 | 3.3 | 5 | 2 | 267 | 82.34% | |
| ARM 261218C00220000 | 220.00 | 52.45 | 50.35 | 53.5 | 5 | 265 | 72.86% | YES |
| ARM 261218C00430000 | 430.00 | 6.64 | 5.35 | 8.6 | 3 | 256 | 79.44% | |
| ARM 261218C00340000 | 340.00 | 14.7 | 13.75 | 14.6 | 8 | 249 | 73.22% | |
| ARM 261218C00660000 | 660.00 | 2.11 | 1.21 | 2.75 | 20 | 247 | 91.30% | |
| ARM 261218C00135000 | 135.00 | 119.9 | 113.55 | 116.85 | 3 | 241 | 84.68% | YES |
| ARM 261218C00145000 | 145.00 | 110.8 | 105 | 107.75 | 1 | 236 | 82.31% | YES |
| ARM 261218C00330000 | 330.00 | 18.05 | 15.1 | 16.25 | 35 | 231 | 72.83% | |
| ARM 261218C00590000 | 590.00 | 3 | 2 | 3.7 | 212 | 226 | 88.88% | |
| ARM 261218C00160000 | 160.00 | 90.22 | 92.1 | 94.95 | 1 | 213 | 78.76% | YES |
| ARM 261218C00310000 | 310.00 | 22.11 | 18.7 | 20.8 | 1 | 206 | 73.06% | |
| ARM 261218C00195000 | 195.00 | 66.52 | 65.65 | 68.35 | 1 | 201 | 73.87% | YES |
| ARM 261218C00190000 | 190.00 | 70 | 68.8 | 71.75 | 1 | 193 | 73.89% | YES |
| ARM 261218C00165000 | 165.00 | 97.33 | 87.95 | 91.3 | 6 | 176 | 78.53% | YES |
| ARM 261218C00360000 | 360.00 | 11.5 | 11.2 | 11.9 | 3 | 173 | 73.79% | |
| ARM 261218C00185000 | 185.00 | 73.2 | 72.45 | 75.8 | 1 | 158 | 75.18% | YES |
| ARM 261218C00620000 | 620.00 | 2.48 | 1.51 | 2.77 | 99 | 153 | 88.01% | |
| ARM 261218C00410000 | 410.00 | 8.52 | 7.15 | 8.35 | 5 | 144 | 77.26% | |
| ARM 261218C00370000 | 370.00 | 12.3 | 10.15 | 10.95 | 11 | 138 | 74.33% | |
| ARM 261218C00650000 | 650.00 | 1.93 | 1.24 | 2.74 | 3 | 138 | 90.30% | |
| ARM 261218C00640000 | 640.00 | 2.2 | 1.6 | 2.91 | 1 | 133 | 91.10% | |
| ARM 261218C00380000 | 380.00 | 9.65 | 9.3 | 9.95 | 2 | 130 | 74.80% | |
| ARM 261218C00530000 | 530.00 | 3.39 | 2.6 | 4.95 | 2 | 122 | 85.38% | |
| ARM 261218C00155000 | 155.00 | 91.65 | 96.2 | 99.65 | 1 | 112 | 80.63% | YES |
| ARM 261218C00280000 | 280.00 | 27.85 | 25.95 | 28.3 | 3 | 110 | 72.32% | |
| ARM 261218C00580000 | 580.00 | 2.96 | 2.16 | 3.75 | 2 | 109 | 88.18% | |
| ARM 261218C00520000 | 520.00 | 3.62 | 3.3 | 5.15 | 4 | 100 | 85.89% | |
| ARM 261218C00070000 | 70.00 | 315.05 | 207.25 | 211.35 | 2 | 70 | 364.55% | YES |
| ARM 261218C00460000 | 460.00 | 5.45 | 4.8 | 7 | 1 | 69 | 82.01% | |
| ARM 261218C00480000 | 480.00 | 5.5 | 4.05 | 5.6 | 10 | 62 | 81.71% | |
| ARM 261218C00105000 | 105.00 | 276.16 | 134.3 | 138.1 | 1 | 61 | 0.00% | YES |
| ARM 261218C00490000 | 490.00 | 5.32 | 3.75 | 4.6 | 7 | 60 | 80.77% | |
| ARM 261218C00570000 | 570.00 | 3.95 | 2 | 3.2 | 1 | 53 | 84.80% | |
| ARM 261218C00560000 | 560.00 | 2.55 | 2 | 4.25 | 7 | 52 | 86.44% | |
| ARM 261218C00060000 | 60.00 | 289.4 | 178.2 | 181.8 | 18 | 50 | 0.00% | YES |
| ARM 261218C00095000 | 95.00 | 256.5 | 143.85 | 147.8 | 20 | 49 | 0.00% | YES |
| ARM 261218C00510000 | 510.00 | 3.76 | 3.1 | 5.45 | 2 | 48 | 84.52% | |
| ARM 261218C00540000 | 540.00 | 3.85 | 2.41 | 3.8 | 1 | 48 | 83.51% | |
| ARM 261218C00085000 | 85.00 | 330.6 | 199.05 | 203.65 | 1 | 21 | 346.83% | YES |
| ARM 261218C00080000 | 80.00 | 34.38 | 42.7 | 45.95 | 10 | 18 | 0.00% | YES |
| ARM 261218C00045000 | 45.00 | 65 | 79.7 | 83.95 | 15 | 18 | 0.00% | YES |
| ARM 261218C00082500 | 82.50 | 74.4 | 129.65 | 133.15 | 4 | 17 | 0.00% | YES |
| ARM 261218C00065000 | 65.00 | 55.37 | 47.1 | 49.7 | 2 | 15 | 0.00% | YES |
| ARM 261218C00087500 | 87.50 | 29.9 | 38.05 | 40.3 | 2 | 7 | 0.00% | YES |
| ARM 261218C00092500 | 92.50 | 144.3 | 154.15 | 157.5 | 1 | 6 | 111.05% | YES |
| ARM 261218C00050000 | 50.00 | 234.12 | 196 | 200.3 | 3 | 6 | 173.10% | YES |
| ARM 261218C00090000 | 90.00 | 115 | 257.8 | 262.5 | 1 | 4 | 0.00% | YES |
| ARM 261218C00042500 | 42.50 | 79.45 | 83 | 87.5 | 1 | 3 | 0.00% | YES |
| ARM 261218C00047500 | 47.50 | 381.55 | 234.65 | 239.35 | 0 | 1 | 605.84% | YES |
| ARM 261218C00075000 | 75.00 | 59.75 | 0 | 0 | 2 | 0 | 0.00% | YES |
| ARM 261218C00055000 | 55.00 | 359.18 | 0 | 0 | 2 | 0 | 0.00% | YES |
| ARM 261218C00097500 | 97.50 | 187.7 | 0 | 0 | 1 | 0 | 0.00% | YES |
The table below lists all put options on ARM expiring on 2026-12-18. Use it to track downside protection demand, hedge activity, and deep out-of-the-money puts that may indicate tail-risk hedging or speculation.
| Contract | Strike | Last | Bid | Ask | Volume | Open Int. | Implied Vol | ITM |
|---|---|---|---|---|---|---|---|---|
| ARM 261218P00110000 | 110.00 | 0.67 | 0.06 | 1.18 | 8 | 9095 | 73.71% | |
| ARM 261218P00120000 | 120.00 | 1.06 | 0.8 | 1.33 | 12 | 4059 | 73.05% | |
| ARM 261218P00090000 | 90.00 | 0.25 | 0 | 0.79 | 2 | 3884 | 84.47% | |
| ARM 261218P00150000 | 150.00 | 3.3 | 2.78 | 3.65 | 13 | 3660 | 68.05% | |
| ARM 261218P00190000 | 190.00 | 11 | 10.4 | 11.2 | 2 | 3606 | 65.07% | |
| ARM 261218P00195000 | 195.00 | 13.6 | 11.4 | 13 | 1 | 3592 | 64.69% | |
| ARM 261218P00095000 | 95.00 | 0.48 | 0 | 0.86 | 134 | 2771 | 81.25% | |
| ARM 261218P00185000 | 185.00 | 8.35 | 8.75 | 9.7 | 6 | 2429 | 64.61% | |
| ARM 261218P00200000 | 200.00 | 13.97 | 13.55 | 14.3 | 602 | 2237 | 64.84% | |
| ARM 261218P00115000 | 115.00 | 0.85 | 0.24 | 1.23 | 8 | 2089 | 72.02% | |
| ARM 261218P00250000 | 250.00 | 36.55 | 36.85 | 38.25 | 17 | 1765 | 65.00% | YES |
| ARM 261218P00070000 | 70.00 | 0.15 | 0 | 0.3 | 4 | 1688 | 91.99% | |
| ARM 261218P00100000 | 100.00 | 0.42 | 0 | 0.95 | 4 | 1614 | 78.32% | |
| ARM 261218P00042500 | 42.50 | 0.05 | 0 | 0.25 | 209 | 1532 | 125.00% | |
| ARM 261218P00210000 | 210.00 | 17.55 | 16.75 | 18.2 | 6 | 1347 | 64.47% | |
| ARM 261218P00240000 | 240.00 | 31.65 | 31.1 | 32.25 | 5 | 1311 | 64.60% | YES |
| ARM 261218P00180000 | 180.00 | 7.5 | 7.9 | 9.15 | 1 | 1232 | 66.46% | |
| ARM 261218P00060000 | 60.00 | 0.1 | 0 | 1 | 1 | 1232 | 120.61% | |
| ARM 261218P00220000 | 220.00 | 21.4 | 21.3 | 22.5 | 4 | 1230 | 64.90% | |
| ARM 261218P00300000 | 300.00 | 69.48 | 69.5 | 72.55 | 6 | 1107 | 63.60% | YES |
| ARM 261218P00130000 | 130.00 | 2.34 | 0.94 | 1.55 | 6 | 1015 | 67.85% | |
| ARM 261218P00085000 | 85.00 | 0.31 | 0.01 | 0.74 | 48 | 961 | 88.28% | |
| ARM 261218P00260000 | 260.00 | 38.28 | 41.85 | 44.3 | 6 | 960 | 63.95% | YES |
| ARM 261218P00175000 | 175.00 | 7.3 | 6.75 | 8.05 | 2 | 881 | 66.75% | |
| ARM 261218P00330000 | 330.00 | 95.3 | 93.5 | 96.8 | 1 | 814 | 63.34% | YES |
| ARM 261218P00280000 | 280.00 | 55.8 | 55.1 | 57.7 | 2 | 778 | 63.86% | YES |
| ARM 261218P00290000 | 290.00 | 62.6 | 62.1 | 64.8 | 125 | 761 | 63.53% | YES |
| ARM 261218P00140000 | 140.00 | 2.15 | 1.91 | 2.51 | 4 | 738 | 69.02% | |
| ARM 261218P00105000 | 105.00 | 0.54 | 0 | 1.05 | 2 | 734 | 75.54% | |
| ARM 261218P00055000 | 55.00 | 0.01 | 0 | 1.74 | 1 | 686 | 139.55% | |
| ARM 261218P00170000 | 170.00 | 6.43 | 5.5 | 6.6 | 1 | 626 | 65.82% | |
| ARM 261218P00350000 | 350.00 | 120.68 | 110.65 | 114.15 | 92 | 574 | 63.35% | YES |
| ARM 261218P00165000 | 165.00 | 7.5 | 4.95 | 5.65 | 2 | 543 | 66.70% | |
| ARM 261218P00092500 | 92.50 | 0.32 | 0 | 0.83 | 3 | 520 | 82.91% | |
| ARM 261218P00125000 | 125.00 | 1.37 | 0.66 | 1.78 | 5 | 505 | 71.19% | |
| ARM 261218P00310000 | 310.00 | 70.25 | 77.2 | 80.55 | 5 | 475 | 63.64% | YES |
| ARM 261218P00075000 | 75.00 | 0.13 | 0 | 0.67 | 11 | 462 | 96.58% | |
| ARM 261218P00230000 | 230.00 | 26.4 | 25.35 | 27 | 34 | 449 | 64.01% | |
| ARM 261218P00145000 | 145.00 | 3.95 | 2.35 | 3.35 | 5 | 416 | 69.60% | |
| ARM 261218P00270000 | 270.00 | 49.5 | 48.25 | 50.75 | 5 | 399 | 63.82% | YES |
| ARM 261218P00065000 | 65.00 | 0.17 | 0 | 0.3 | 2 | 383 | 97.27% | |
| ARM 261218P00370000 | 370.00 | 129.8 | 128.3 | 131.75 | 15 | 372 | 62.54% | YES |
| ARM 261218P00082500 | 82.50 | 0.17 | 0.1 | 0.61 | 5 | 338 | 89.94% | |
| ARM 261218P00320000 | 320.00 | 77 | 85.2 | 88.5 | 1 | 324 | 63.40% | YES |
| ARM 261218P00047500 | 47.50 | 0.03 | 0 | 0.7 | 81 | 289 | 133.20% | |
| ARM 261218P00097500 | 97.50 | 0.41 | 0 | 0.9 | 7 | 219 | 79.69% | |
| ARM 261218P00080000 | 80.00 | 0.14 | 0 | 0.59 | 2 | 188 | 90.04% | |
| ARM 261218P00160000 | 160.00 | 5.15 | 4.05 | 5.15 | 1 | 186 | 67.49% | |
| ARM 261218P00050000 | 50.00 | 0.01 | 0 | 3.4 | 16 | 171 | 167.51% | |
| ARM 261218P00135000 | 135.00 | 2.48 | 1.28 | 2.05 | 7 | 143 | 68.32% | |
| ARM 261218P00340000 | 340.00 | 115.58 | 101.95 | 105.3 | 1 | 137 | 63.21% | YES |
| ARM 261218P00360000 | 360.00 | 132.9 | 119.35 | 123 | 90 | 136 | 63.07% | YES |
| ARM 261218P00410000 | 410.00 | 163 | 165.5 | 169.25 | 7 | 118 | 62.87% | YES |
| ARM 261218P00155000 | 155.00 | 6.2 | 3.2 | 4.15 | 3 | 106 | 66.82% | |
| ARM 261218P00380000 | 380.00 | 139.05 | 137.35 | 140.95 | 10 | 78 | 62.40% | YES |
| ARM 261218P00400000 | 400.00 | 164.92 | 156.6 | 159.4 | 1 | 73 | 63.15% | YES |
| ARM 261218P00087500 | 87.50 | 0.24 | 0 | 0.76 | 8 | 67 | 86.18% | |
| ARM 261218P00440000 | 440.00 | 156.45 | 202.05 | 204.9 | 3 | 47 | 89.48% | YES |
| ARM 261218P00420000 | 420.00 | 163.05 | 175 | 178.7 | 15 | 37 | 62.65% | YES |
| ARM 261218P00390000 | 390.00 | 146.05 | 146.65 | 149.65 | 1 | 31 | 61.40% | YES |
| ARM 261218P00430000 | 430.00 | 150.7 | 192.5 | 195.9 | 11 | 24 | 89.23% | YES |
| ARM 261218P00540000 | 540.00 | 201.55 | 268.05 | 272.7 | 3 | 20 | 0.00% | YES |
| ARM 261218P00550000 | 550.00 | 249.6 | 309.5 | 313.4 | 2 | 20 | 103.52% | YES |
| ARM 261218P00530000 | 530.00 | 230.1 | 290.1 | 293.3 | 2 | 19 | 101.15% | YES |
| ARM 261218P00450000 | 450.00 | 205.16 | 203.95 | 207.5 | 1 | 17 | 62.29% | YES |
| ARM 261218P00580000 | 580.00 | 267.05 | 338.8 | 343.4 | 5 | 15 | 106.81% | YES |
| ARM 261218P00045000 | 45.00 | 0.12 | 0.01 | 0.31 | 56 | 15 | 124.41% | |
| ARM 261218P00470000 | 470.00 | 163.85 | 205.5 | 209.95 | 3 | 13 | 0.00% | YES |
| ARM 261218P00480000 | 480.00 | 188.35 | 241 | 244.25 | 3 | 8 | 95.19% | YES |
| ARM 261218P00490000 | 490.00 | 179 | 223.05 | 227.6 | 0 | 6 | 0.00% | YES |
| ARM 261218P00460000 | 460.00 | 156.35 | 196.85 | 201.25 | 0 | 5 | 0.00% | YES |
| ARM 261218P00510000 | 510.00 | 252.96 | 270.5 | 273.1 | 1 | 5 | 98.09% | YES |
| ARM 261218P00520000 | 520.00 | 186.2 | 250 | 254.5 | 7 | 5 | 0.00% | YES |
| ARM 261218P00500000 | 500.00 | 243.95 | 260.5 | 263.25 | 1 | 3 | 96.57% | YES |
| ARM 261218P00600000 | 600.00 | 333 | 351.55 | 355.3 | 1 | 2 | 80.44% | YES |
| ARM 261218P00560000 | 560.00 | 234.73 | 286.5 | 290.65 | 0 | 1 | 0.00% | YES |
| ARM 261218P00630000 | 630.00 | 376.2 | 381.3 | 385.35 | 3 | 0 | 84.29% | YES |
| ARM 261218P00620000 | 620.00 | 365.85 | 371.55 | 375.75 | 3 | 0 | 86.40% | YES |
| ARM 261218P00660000 | 660.00 | 336.8 | 418.5 | 423.3 | 0 | 0 | 116.70% | YES |
| ARM 261218P00670000 | 670.00 | 346.65 | 428.5 | 433.3 | 0 | 0 | 117.91% | YES |
| ARM 261218P00650000 | 650.00 | 391.3 | 400.9 | 405.2 | 0 | 0 | 85.08% | YES |
This page displays the full ARM options chain for contracts expiring on 2026-12-18. Both call and put tables include contract symbols, last trade price, bid/ask quotes, daily change and percentage change, trading volume, open interest, implied volatility, and an in-the-money (ITM) flag. It is designed to give you a complete snapshot of how the market is pricing risk and direction for this specific expiry.
Around earnings, macro data releases, or company-specific news, traders often focus on a single expiration such as 2026-12-18. By monitoring changes in implied volatility, volume, and open interest for each strike, you can see where traders are concentrating their bets and hedges. Large shifts in activity on out-of-the-money calls or puts can be early signs of expected volatility or directional moves in ARM.
The ITM column highlights whether a contract is currently in-the-money for ARM: call options are ITM when their strike is below the current stock price, while put options are ITM when their strike is above the current stock price. ITM contracts have intrinsic value, while out-of-the-money options are purely time and volatility value. This distinction helps you quickly identify which strikes are already “in the money” for this expiry.
Implied volatility reflects how much movement the market expects for ARM between now and 2026-12-18. Higher IV typically means options are more expensive and the market is pricing in larger potential moves. You can compare IV across strikes and between calls and puts to identify skew – for example, expensive downside puts may indicate demand for crash protection, while rich upside calls can signal speculative interest.
No. This 2026-12-18 options chain gives a granular view for one maturity only. For a complete picture of positioning in ARM, you should also review the multi-expiry options overview where you can compare put/call ratios, total open interest and volume across different expiration dates. Combining both perspectives helps you understand whether traders are focused on very short-term moves or longer-dated themes.
The ARM options data on this page is refreshed regularly during market hours to reflect the latest trades, mid-market quotes, and open interest updates. Intraday changes in volume, open interest, and implied volatility can provide important signals about how sentiment and risk pricing are evolving as 2026-12-18 approaches.
