Detailed DIA 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 DIA.
This page focuses on a single options expiration date for DIA – 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 DIA into 2026-12-18.
This DIA 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 DIA 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 |
|---|---|---|---|---|---|---|---|---|
| DIA 261218C00675000 | 675.00 | 0.15 | 0.05 | 1.12 | 1 | 7002 | 21.11% | |
| DIA 261218C00670000 | 670.00 | 0.2 | 0.05 | 2.32 | 1 | 6998 | 23.79% | |
| DIA 261218C00650000 | 650.00 | 0.31 | 0.01 | 1.75 | 15 | 5376 | 20.25% | |
| DIA 261218C00525000 | 525.00 | 23.6 | 22.8 | 25.55 | 10 | 2349 | 18.72% | |
| DIA 261218C00500000 | 500.00 | 41.53 | 39.8 | 43.9 | 10 | 2296 | 22.36% | YES |
| DIA 261218C00475000 | 475.00 | 62.65 | 60.4 | 64.55 | 1 | 1600 | 26.11% | YES |
| DIA 261218C00575000 | 575.00 | 4.81 | 2.69 | 6.8 | 1 | 1577 | 16.72% | |
| DIA 261218C00470000 | 470.00 | 66.05 | 64.8 | 69.25 | 100 | 1472 | 27.24% | YES |
| DIA 261218C00520000 | 520.00 | 26.91 | 25.3 | 29.1 | 1 | 1203 | 19.53% | YES |
| DIA 261218C00450000 | 450.00 | 87.67 | 82.5 | 87.25 | 8 | 1183 | 30.73% | YES |
| DIA 261218C00530000 | 530.00 | 20.7 | 19.9 | 22.75 | 2 | 1177 | 18.35% | |
| DIA 261218C00420000 | 420.00 | 76.25 | 84.6 | 89.5 | 1 | 1127 | 0.00% | YES |
| DIA 261218C00510000 | 510.00 | 32.23 | 32.2 | 36.5 | 10 | 1113 | 21.11% | YES |
| DIA 261218C00350000 | 350.00 | 176.55 | 177.45 | 182 | 2 | 908 | 50.05% | YES |
| DIA 261218C00460000 | 460.00 | 79.6 | 73.7 | 78 | 1 | 896 | 28.79% | YES |
| DIA 261218C00565000 | 565.00 | 7.1 | 4.5 | 9.1 | 3 | 837 | 16.90% | |
| DIA 261218C00550000 | 550.00 | 11.7 | 9.6 | 13.65 | 8 | 775 | 17.24% | |
| DIA 261218C00580000 | 580.00 | 4.27 | 2.06 | 6.25 | 15 | 764 | 17.06% | |
| DIA 261218C00645000 | 645.00 | 0.41 | 0 | 1.11 | 1 | 723 | 17.99% | |
| DIA 261218C00375000 | 375.00 | 157.6 | 153.3 | 158 | 1 | 721 | 45.05% | YES |
| DIA 261218C00485000 | 485.00 | 53.66 | 52 | 56.2 | 1 | 677 | 24.69% | YES |
| DIA 261218C00600000 | 600.00 | 2.36 | 0 | 4.8 | 2 | 595 | 18.73% | |
| DIA 261218C00635000 | 635.00 | 0.72 | 0.05 | 2.69 | 24 | 585 | 20.44% | |
| DIA 261218C00360000 | 360.00 | 156.14 | 167.8 | 172.5 | 31 | 554 | 48.24% | YES |
| DIA 261218C00490000 | 490.00 | 52 | 48.15 | 51.45 | 2 | 523 | 23.43% | YES |
| DIA 261218C00570000 | 570.00 | 5.53 | 4.2 | 7.75 | 1 | 486 | 16.68% | |
| DIA 261218C00480000 | 480.00 | 58.98 | 55.8 | 60.5 | 9 | 483 | 25.54% | YES |
| DIA 261218C00545000 | 545.00 | 13.7 | 12.2 | 15.35 | 2 | 399 | 17.27% | |
| DIA 261218C00555000 | 555.00 | 9.95 | 7.9 | 12.05 | 2 | 368 | 17.18% | |
| DIA 261218C00585000 | 585.00 | 4.01 | 1.18 | 5.5 | 26 | 289 | 17.13% | |
| DIA 261218C00465000 | 465.00 | 71.62 | 69.25 | 73.35 | 1 | 235 | 27.77% | YES |
| DIA 261218C00665000 | 665.00 | 0.41 | 0 | 2.38 | 5 | 193 | 23.37% | |
| DIA 261218C00540000 | 540.00 | 15.95 | 14.55 | 17.65 | 3 | 186 | 17.63% | |
| DIA 261218C00560000 | 560.00 | 8.45 | 6.1 | 10.4 | 2 | 185 | 16.95% | |
| DIA 261218C00515000 | 515.00 | 30 | 29.05 | 32.15 | 1 | 177 | 19.88% | YES |
| DIA 261218C00425000 | 425.00 | 87.53 | 70.05 | 74.05 | 1 | 124 | 0.00% | YES |
| DIA 261218C00640000 | 640.00 | 1.18 | 0 | 2.59 | 13 | 122 | 20.87% | |
| DIA 261218C00340000 | 340.00 | 186.22 | 187.1 | 191.8 | 108 | 113 | 52.43% | YES |
| DIA 261218C00370000 | 370.00 | 93.1 | 107.5 | 112.5 | 4 | 110 | 0.00% | YES |
| DIA 261218C00445000 | 445.00 | 88.67 | 87.4 | 91.5 | 2 | 107 | 31.26% | YES |
| DIA 261218C00660000 | 660.00 | 0.32 | 0.05 | 2.39 | 1 | 103 | 22.82% | |
| DIA 261218C00325000 | 325.00 | 200.65 | 201.95 | 206.1 | 64 | 92 | 50.07% | YES |
| DIA 261218C00365000 | 365.00 | 151.34 | 162.9 | 167.5 | 81 | 85 | 46.88% | YES |
| DIA 261218C00655000 | 655.00 | 0.26 | 0.05 | 2.43 | 1 | 76 | 22.33% | |
| DIA 261218C00495000 | 495.00 | 46.17 | 43.65 | 48 | 4 | 72 | 23.19% | YES |
| DIA 261218C00430000 | 430.00 | 94.05 | 101.05 | 105.75 | 1 | 70 | 34.36% | YES |
| DIA 261218C00535000 | 535.00 | 18.4 | 16.85 | 20.35 | 2 | 67 | 18.16% | |
| DIA 261218C00590000 | 590.00 | 3.12 | 0.49 | 4.75 | 1 | 67 | 17.09% | |
| DIA 261218C00400000 | 400.00 | 132.84 | 129.35 | 134 | 1 | 64 | 39.96% | YES |
| DIA 261218C00380000 | 380.00 | 150.15 | 148.5 | 153.35 | 1 | 61 | 44.28% | YES |
| DIA 261218C00615000 | 615.00 | 0.84 | 0 | 3.15 | 52 | 59 | 18.62% | |
| DIA 261218C00440000 | 440.00 | 93.57 | 91.55 | 96.45 | 1 | 47 | 32.53% | YES |
| DIA 261218C00505000 | 505.00 | 35.06 | 35.95 | 39.95 | 31 | 44 | 21.58% | YES |
| DIA 261218C00415000 | 415.00 | 93.45 | 101 | 105.95 | 2 | 37 | 0.00% | YES |
| DIA 261218C00385000 | 385.00 | 121.51 | 142.85 | 146.5 | 6 | 32 | 39.91% | YES |
| DIA 261218C00410000 | 410.00 | 88.82 | 93.5 | 98.35 | 4 | 27 | 0.00% | YES |
| DIA 261218C00625000 | 625.00 | 2.67 | 0 | 2.85 | 2 | 21 | 19.45% | |
| DIA 261218C00390000 | 390.00 | 94.4 | 96 | 101 | 1 | 19 | 0.00% | YES |
| DIA 261218C00300000 | 300.00 | 209.05 | 226 | 230.85 | 1 | 18 | 55.08% | YES |
| DIA 261218C00595000 | 595.00 | 2.65 | 0.05 | 4.95 | 1 | 16 | 18.13% | |
| DIA 261218C00305000 | 305.00 | 171.62 | 172.5 | 177.5 | 4 | 14 | 0.00% | YES |
| DIA 261218C00290000 | 290.00 | 218.55 | 235.65 | 240.5 | 1 | 12 | 56.70% | YES |
| DIA 261218C00315000 | 315.00 | 185.68 | 195.55 | 200.5 | 2 | 9 | 0.00% | YES |
| DIA 261218C00270000 | 270.00 | 237.85 | 255.2 | 260 | 3 | 8 | 60.64% | YES |
| DIA 261218C00355000 | 355.00 | 120.03 | 119.5 | 124.5 | 2 | 5 | 0.00% | YES |
| DIA 261218C00610000 | 610.00 | 1.95 | 0.05 | 4.95 | 1 | 4 | 20.43% | |
| DIA 261218C00345000 | 345.00 | 165.85 | 182.55 | 186.75 | 4 | 4 | 50.93% | YES |
| DIA 261218C00310000 | 310.00 | 199.35 | 216.25 | 221 | 1 | 3 | 52.96% | YES |
| DIA 261218C00280000 | 280.00 | 190.89 | 215.6 | 220.5 | 2 | 3 | 0.00% | YES |
| DIA 261218C00335000 | 335.00 | 136 | 0 | 0 | 3 | 3 | 0.00% | YES |
| DIA 261218C00295000 | 295.00 | 175.5 | 176 | 180.5 | 1 | 2 | 0.00% | YES |
| DIA 261218C00240000 | 240.00 | 243.72 | 255.5 | 260.5 | 1 | 2 | 0.00% | YES |
| DIA 261218C00195000 | 195.00 | 196.09 | 202 | 207 | 4 | 2 | 0.00% | YES |
| DIA 261218C00330000 | 330.00 | 158.5 | 176.5 | 181.5 | 1 | 2 | 0.00% | YES |
| DIA 261218C00210000 | 210.00 | 191 | 208.5 | 213.5 | 1 | 1 | 0.00% | YES |
| DIA 261218C00245000 | 245.00 | 189 | 0 | 0 | 0 | 1 | 0.00% | YES |
| DIA 261218C00275000 | 275.00 | 217.78 | 234.5 | 239.45 | 0 | 1 | 0.00% | YES |
| DIA 261218C00200000 | 200.00 | 283.6 | 287.5 | 292 | 1 | 1 | 0.00% | YES |
| DIA 261218C00185000 | 185.00 | 304.59 | 0 | 0 | 4 | 0 | 0.00% | YES |
| DIA 261218C00405000 | 405.00 | 110.75 | 0 | 0 | 16 | 0 | 0.00% | YES |
| DIA 261218C00260000 | 260.00 | 162.91 | 0 | 0 | 25 | 0 | 0.00% | YES |
| DIA 261218C00605000 | 605.00 | 1.4 | 0.44 | 4.35 | 2 | 0 | 18.91% | |
| DIA 261218C00620000 | 620.00 | 1.35 | 0 | 0 | 25 | 0 | 6.25% | |
| DIA 261218C00215000 | 215.00 | 246.67 | 248.5 | 253.5 | 1 | 0 | 0.00% | YES |
| DIA 261218C00395000 | 395.00 | 120.33 | 0 | 0 | 1 | 0 | 0.00% | YES |
| DIA 261218C00455000 | 455.00 | 71 | 0 | 0 | 31 | 0 | 0.00% | YES |
| DIA 261218C00190000 | 190.00 | 238.15 | 264 | 268.5 | 3 | 0 | 0.00% | YES |
| DIA 261218C00630000 | 630.00 | 0.74 | 0 | 0 | 22 | 0 | 6.25% | |
| DIA 261218C00435000 | 435.00 | 85 | 0 | 0 | 1 | 0 | 0.00% | YES |
| DIA 261218C00285000 | 285.00 | 217.3 | 0 | 0 | 0 | 0 | 0.00% | YES |
The table below lists all put options on DIA 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 |
|---|---|---|---|---|---|---|---|---|
| DIA 261218P00450000 | 450.00 | 4.25 | 3.3 | 4.5 | 2 | 3804 | 21.08% | |
| DIA 261218P00420000 | 420.00 | 2.57 | 0.65 | 4.9 | 6 | 2927 | 28.33% | |
| DIA 261218P00510000 | 510.00 | 13.5 | 10.9 | 14.7 | 31 | 2693 | 15.71% | |
| DIA 261218P00250000 | 250.00 | 1.19 | 0 | 2.34 | 33 | 2402 | 56.87% | |
| DIA 261218P00495000 | 495.00 | 9.9 | 8 | 11.2 | 13 | 1873 | 17.31% | |
| DIA 261218P00190000 | 190.00 | 0.12 | 0 | 2.17 | 1 | 1871 | 75.06% | |
| DIA 261218P00500000 | 500.00 | 10.64 | 8.65 | 12.15 | 15 | 1815 | 16.70% | |
| DIA 261218P00370000 | 370.00 | 1.2 | 1.2 | 3.4 | 2 | 1534 | 36.57% | |
| DIA 261218P00400000 | 400.00 | 2.61 | 0.99 | 2.62 | 1 | 1458 | 28.09% | |
| DIA 261218P00470000 | 470.00 | 6.21 | 4 | 8.45 | 5 | 1235 | 21.25% | |
| DIA 261218P00460000 | 460.00 | 4.75 | 2.75 | 7.45 | 1 | 1233 | 22.59% | |
| DIA 261218P00330000 | 330.00 | 1 | 0.5 | 3 | 1 | 1201 | 44.91% | |
| DIA 261218P00375000 | 375.00 | 2.1 | 0 | 3.75 | 5 | 1138 | 36.27% | |
| DIA 261218P00430000 | 430.00 | 3.75 | 0.85 | 5.5 | 1 | 1085 | 27.02% | |
| DIA 261218P00320000 | 320.00 | 1.75 | 0 | 3.55 | 2 | 1075 | 49.16% | |
| DIA 261218P00350000 | 350.00 | 1.13 | 0 | 3.3 | 3 | 1064 | 40.97% | |
| DIA 261218P00240000 | 240.00 | 0.78 | 0 | 2.42 | 2 | 1009 | 60.03% | |
| DIA 261218P00325000 | 325.00 | 0.77 | 0.01 | 1.85 | 24 | 722 | 41.88% | |
| DIA 261218P00385000 | 385.00 | 2.05 | 0.05 | 4.05 | 5 | 715 | 34.66% | |
| DIA 261218P00410000 | 410.00 | 2.65 | 0.1 | 4.6 | 1 | 703 | 30.06% | |
| DIA 261218P00285000 | 285.00 | 1.15 | 0 | 2.95 | 1 | 651 | 56.54% | |
| DIA 261218P00390000 | 390.00 | 1.44 | 0.01 | 4.1 | 20 | 618 | 33.62% | |
| DIA 261218P00465000 | 465.00 | 5.84 | 3.65 | 7.7 | 1 | 586 | 21.66% | |
| DIA 261218P00490000 | 490.00 | 8.95 | 6.95 | 10.3 | 1 | 554 | 17.89% | |
| DIA 261218P00485000 | 485.00 | 8.15 | 6.55 | 9 | 1 | 508 | 18.01% | |
| DIA 261218P00380000 | 380.00 | 2 | 0 | 3.9 | 2 | 456 | 35.47% | |
| DIA 261218P00455000 | 455.00 | 4.4 | 4.2 | 6.9 | 10 | 452 | 23.12% | |
| DIA 261218P00530000 | 530.00 | 20.7 | 18.65 | 21.55 | 1 | 400 | 13.62% | YES |
| DIA 261218P00360000 | 360.00 | 1.35 | 0 | 3.45 | 2 | 374 | 39.01% | |
| DIA 261218P00195000 | 195.00 | 0.09 | 0 | 2.18 | 1 | 358 | 73.32% | |
| DIA 261218P00440000 | 440.00 | 3.4 | 2.09 | 5 | 2 | 348 | 24.01% | |
| DIA 261218P00525000 | 525.00 | 18.15 | 15.65 | 20.45 | 52 | 338 | 14.79% | YES |
| DIA 261218P00200000 | 200.00 | 0.59 | 0 | 1 | 462 | 305 | 64.14% | |
| DIA 261218P00315000 | 315.00 | 1.02 | 0 | 2.84 | 14 | 304 | 48.12% | |
| DIA 261218P00235000 | 235.00 | 1.54 | 0 | 4.8 | 1 | 251 | 69.17% | |
| DIA 261218P00425000 | 425.00 | 2.69 | 0.6 | 4.95 | 3 | 247 | 27.29% | |
| DIA 261218P00475000 | 475.00 | 6.92 | 4.5 | 8.65 | 3 | 197 | 20.21% | |
| DIA 261218P00345000 | 345.00 | 1.3 | 0 | 3.25 | 1 | 186 | 42.02% | |
| DIA 261218P00395000 | 395.00 | 1.91 | 0.05 | 4.3 | 34 | 182 | 32.89% | |
| DIA 261218P00295000 | 295.00 | 0.57 | 0 | 2.64 | 3 | 169 | 52.58% | |
| DIA 261218P00355000 | 355.00 | 1.45 | 0 | 3.4 | 1 | 149 | 40.06% | |
| DIA 261218P00515000 | 515.00 | 15 | 12.4 | 16.15 | 1 | 136 | 15.18% | |
| DIA 261218P00520000 | 520.00 | 16.3 | 14.5 | 17.75 | 38 | 132 | 14.65% | |
| DIA 261218P00270000 | 270.00 | 0.22 | 0.01 | 2.45 | 18 | 119 | 51.95% | |
| DIA 261218P00445000 | 445.00 | 3.49 | 2.08 | 6.2 | 1 | 104 | 24.57% | |
| DIA 261218P00340000 | 340.00 | 0.83 | 0.63 | 3.15 | 5 | 96 | 42.93% | |
| DIA 261218P00305000 | 305.00 | 1.9 | 0 | 2.9 | 1 | 88 | 50.92% | |
| DIA 261218P00480000 | 480.00 | 7.45 | 5.05 | 9.1 | 3 | 88 | 19.39% | |
| DIA 261218P00245000 | 245.00 | 1.18 | 0 | 2.32 | 33 | 81 | 58.20% | |
| DIA 261218P00335000 | 335.00 | 1.29 | 0 | 3.1 | 18 | 80 | 43.99% | |
| DIA 261218P00435000 | 435.00 | 3.46 | 2 | 5.7 | 1 | 74 | 26.17% | |
| DIA 261218P00505000 | 505.00 | 11.82 | 9.65 | 13.25 | 3 | 52 | 16.12% | |
| DIA 261218P00265000 | 265.00 | 0.93 | 0 | 4.8 | 1 | 48 | 59.90% | |
| DIA 261218P00260000 | 260.00 | 0.93 | 0 | 2.52 | 2 | 32 | 54.81% | |
| DIA 261218P00280000 | 280.00 | 1.14 | 0 | 2.9 | 2 | 23 | 50.79% | |
| DIA 261218P00255000 | 255.00 | 0.85 | 0 | 2.5 | 2 | 21 | 56.10% | |
| DIA 261218P00535000 | 535.00 | 23 | 20.95 | 24.05 | 3 | 20 | 13.32% | YES |
| DIA 261218P00225000 | 225.00 | 0.08 | 0.08 | 2.25 | 1 | 14 | 64.14% | |
| DIA 261218P00210000 | 210.00 | 2.22 | 0 | 2.21 | 2 | 11 | 68.36% | |
| DIA 261218P00540000 | 540.00 | 25.75 | 23.3 | 26.85 | 1 | 7 | 13.07% | YES |
| DIA 261218P00405000 | 405.00 | 2.85 | 0.29 | 4.55 | 1 | 7 | 31.10% | |
| DIA 261218P00205000 | 205.00 | 0.54 | 0 | 2.25 | 2 | 3 | 70.22% | |
| DIA 261218P00550000 | 550.00 | 34.5 | 28.55 | 33.35 | 1 | 1 | 12.77% | YES |
| DIA 261218P00230000 | 230.00 | 0.91 | 0 | 0 | 2 | 0 | 25.00% | |
| DIA 261218P00365000 | 365.00 | 2.55 | 0 | 0 | 8 | 0 | 12.50% | |
| DIA 261218P00275000 | 275.00 | 1.04 | 0 | 0 | 1 | 0 | 25.00% | |
| DIA 261218P00290000 | 290.00 | 0.95 | 0 | 0 | 3 | 0 | 12.50% | |
| DIA 261218P00300000 | 300.00 | 1.25 | 0 | 0 | 2 | 0 | 12.50% | |
| DIA 261218P00310000 | 310.00 | 1.15 | 0 | 0 | 4 | 0 | 12.50% | |
| DIA 261218P00215000 | 215.00 | 0.49 | 0 | 0 | 1 | 0 | 25.00% | |
| DIA 261218P00570000 | 570.00 | 88.88 | 79 | 84 | 0 | 0 | 41.06% | YES |
| DIA 261218P00575000 | 575.00 | 93.38 | 84 | 89 | 0 | 0 | 42.26% | YES |
| DIA 261218P00590000 | 590.00 | 152.53 | 163.5 | 168.5 | 2 | 0 | 91.12% | YES |
| DIA 261218P00600000 | 600.00 | 129.5 | 103.5 | 108 | 3 | 0 | 43.28% | YES |
| DIA 261218P00605000 | 605.00 | 148.51 | 140 | 145 | 2 | 0 | 66.35% | YES |
| DIA 261218P00675000 | 675.00 | 207.85 | 201 | 206 | 1 | 0 | 72.94% | YES |
| DIA 261218P00185000 | 185.00 | 0.2 | 0 | 0 | 1 | 0 | 25.00% | |
| DIA 261218P00220000 | 220.00 | 1.31 | 0 | 0 | 1 | 0 | 25.00% | |
| DIA 261218P00415000 | 415.00 | 4.08 | 0 | 0 | 2 | 0 | 6.25% |
This page displays the full DIA 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 DIA.
The ITM column highlights whether a contract is currently in-the-money for DIA: 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 DIA 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 DIA, 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 DIA 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.
