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DIA Options Chain – 2026-03-31

Detailed DIA options chain for 2026-03-31 – 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.

DIA Call Options — 2026-03-31 Expiration

This page focuses on a single options expiration date for DIA – 2026-03-31 – 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 2026-03-31.

This DIA 2026-03-31 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.

DIA Call Options — 2026-03-31 Expiration

The table below shows all call options on DIA expiring on 2026-03-31. 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 260331C00475000 475.00 1.23 1.18 1.55 144 1396 20.44%
DIA 260331C00450000 450.00 15.81 13.6 18.5 8 1141 39.05% YES
DIA 260331C00485000 485.00 0.14 0.14 0.18 136 1092 17.92%
DIA 260331C00495000 495.00 0.05 0 0.07 6 926 21.19%
DIA 260331C00480000 480.00 0.46 0.47 0.53 117 807 18.43%
DIA 260331C00510000 510.00 0.01 0 0.04 3 666 27.54%
DIA 260331C00525000 525.00 0.03 0 0.04 1 613 34.77%
DIA 260331C00490000 490.00 0.08 0.03 0.1 2 554 19.29%
DIA 260331C00515000 515.00 0.03 0 0.04 2 520 29.98%
DIA 260331C00470000 470.00 2.78 2.76 2.91 112 425 20.68%
DIA 260331C00500000 500.00 0.08 0 0.05 33 421 22.95%
DIA 260331C00505000 505.00 0.01 0 0.05 1 403 25.59%
DIA 260331C00435000 435.00 30.12 27.7 32.5 5 392 52.69% YES
DIA 260331C00570000 570.00 0.1 0 0.03 1 365 50.00%
DIA 260331C00465000 465.00 5.15 5.1 5.35 72 358 22.48%
DIA 260331C00550000 550.00 0.26 0 0.03 1 351 44.92%
DIA 260331C00445000 445.00 22.95 20.35 20.75 5 324 30.51% YES
DIA 260331C00455000 455.00 12.28 11.05 12.2 5 303 26.21% YES
DIA 260331C00460000 460.00 8.4 8.2 8.5 2 270 24.33% YES
DIA 260331C00545000 545.00 0.05 0 0.03 1 258 42.58%
DIA 260331C00430000 430.00 34.3 34.65 35.05 5 246 39.58% YES
DIA 260331C00520000 520.00 0.04 0 0.01 4 235 28.13%
DIA 260331C00410000 410.00 56.45 52.35 57 2 158 51.83% YES
DIA 260331C00555000 555.00 0.12 0 0.03 1 154 46.88%
DIA 260331C00535000 535.00 0.05 0 0.03 1 153 38.28%
DIA 260331C00456000 456.00 11.25 9.8 13.3 4 96 33.94% YES
DIA 260331C00530000 530.00 0.44 0 0.04 15 95 37.11%
DIA 260331C00560000 560.00 0.04 0 0.03 90 91 49.22%
DIA 260331C00440000 440.00 49.19 23.35 27.5 1 85 46.73% YES
DIA 260331C00458000 458.00 9.75 9.6 11.2 8 82 30.41% YES
DIA 260331C00459000 459.00 8.91 6.75 11.35 2 54 33.47% YES
DIA 260331C00420000 420.00 66.05 43.05 47 44 49 66.41% YES
DIA 260331C00461000 461.00 7.6 7.55 8.95 1 48 28.46% YES
DIA 260331C00446000 446.00 13.94 19.45 19.85 1 45 30.07% YES
DIA 260331C00575000 575.00 0.07 0 0.03 1 43 51.56%
DIA 260331C00540000 540.00 0.06 0 0.03 10 22 40.63%
DIA 260331C00425000 425.00 47.2 67.85 71.75 11 22 194.91% YES
DIA 260331C00585000 585.00 0.08 0 0.08 11 15 60.94%
DIA 260331C00565000 565.00 0.21 0 3.4 1 14 91.67%
DIA 260331C00451000 451.00 17.4 13.65 18 1 11 39.95% YES
DIA 260331C00447000 447.00 21.15 18.5 21.5 5 9 43.09% YES
DIA 260331C00345000 345.00 120.4 117.15 122 5 9 104.69% YES
DIA 260331C00439000 439.00 25.25 25.95 26.35 2 8 33.79% YES
DIA 260331C00457000 457.00 10.3 8.2 11.45 3 8 28.82% YES
DIA 260331C00441000 441.00 24 22.95 27 9 7 48.24% YES
DIA 260331C00413000 413.00 77.7 62.55 67.5 6 7 138.26% YES
DIA 260331C00290000 290.00 174.4 172 176.95 1 6 151.66% YES
DIA 260331C00437000 437.00 28.22 26.05 28.3 5 6 35.34% YES
DIA 260331C00415000 415.00 64.25 47.35 52 1 6 71.91% YES
DIA 260331C00340000 340.00 125.05 124.25 124.65 6 6 103.91% YES
DIA 260331C00397000 397.00 42.5 48.55 53.5 0 6 0.00% YES
DIA 260331C00412000 412.00 68.49 80.55 84.45 3 5 217.38% YES
DIA 260331C00416000 416.00 75.91 60 64.95 1 5 135.91% YES
DIA 260331C00389000 389.00 76.3 75.35 75.75 5 5 66.41% YES
DIA 260331C00391000 391.00 92.7 87.3 92 3 5 185.88% YES
DIA 260331C00275000 275.00 190.7 187 191.95 5 5 166.99% YES
DIA 260331C00424000 424.00 49.17 69 72.95 1 4 197.51% YES
DIA 260331C00401000 401.00 44.07 57.1 61.25 6 4 0.00% YES
DIA 260331C00350000 350.00 119.4 114.3 114.7 1 4 97.46% YES
DIA 260331C00442000 442.00 47.15 41.7 45.35 1 4 124.88% YES
DIA 260331C00414000 414.00 62.24 49.1 53 1 4 54.13% YES
DIA 260331C00429000 429.00 51.95 34.25 38.5 2 4 59.68% YES
DIA 260331C00405000 405.00 56.11 0 0 2 4 0.00% YES
DIA 260331C00406000 406.00 55.35 61.3 65 4 3 97.85% YES
DIA 260331C00448000 448.00 17.65 15.55 20.5 3 3 41.75% YES
DIA 260331C00320000 320.00 159.58 170.55 174.4 2 3 381.48% YES
DIA 260331C00427000 427.00 35.6 36.45 40.5 10 3 62.00% YES
DIA 260331C00438000 438.00 26.17 26.9 27.3 2 3 34.36% YES
DIA 260331C00380000 380.00 98.85 84.3 84.7 1 3 72.31% YES
DIA 260331C00452000 452.00 13.92 12.1 17 2 3 38.54% YES
DIA 260331C00315000 315.00 147.2 147 151.95 5 3 127.54% YES
DIA 260331C00419000 419.00 34.43 28.65 32.65 2 2 0.00% YES
DIA 260331C00434000 434.00 44.85 45.7 49.75 2 2 122.31% YES
DIA 260331C00436000 436.00 45.3 27.05 29.25 1 2 35.86% YES
DIA 260331C00409000 409.00 76.52 70.9 74.95 1 2 163.77% YES
DIA 260331C00370000 370.00 96.35 94.3 94.7 2 2 80.57% YES
DIA 260331C00376000 376.00 86.2 88.35 88.7 2 2 76.37% YES
DIA 260331C00443000 443.00 28.45 22.2 22.6 0 2 31.62% YES
DIA 260331C00407000 407.00 42.45 60.6 64.4 1 2 98.96% YES
DIA 260331C00453000 453.00 14.55 11.8 16 1 2 37.10% YES
DIA 260331C00411000 411.00 83.22 64.5 69.5 1 2 141.17% YES
DIA 260331C00280000 280.00 187.6 192 196.95 0 1 323.76% YES
DIA 260331C00388000 388.00 77.8 76.35 76.75 1 1 67.24% YES
DIA 260331C00381000 381.00 82.6 83.3 83.7 1 1 71.48% YES
DIA 260331C00384000 384.00 79 80.3 80.7 10 1 69.04% YES
DIA 260331C00408000 408.00 77.15 71.5 76.25 0 1 165.12% YES
DIA 260331C00444000 444.00 45.45 40 43.5 0 1 122.27% YES
DIA 260331C00400000 400.00 65.2 64.35 64.75 1 1 57.42% YES
DIA 260331C00449000 449.00 28.08 29.5 33.25 0 1 91.31% YES
DIA 260331C00375000 375.00 89.95 89.35 89.7 1 1 77.25% YES
DIA 260331C00393000 393.00 70.8 71.35 71.75 1 1 63.14% YES
DIA 260331C00365000 365.00 132.25 110 115 1 1 208.19% YES
DIA 260331C00360000 360.00 104 104.3 104.7 1 1 88.92% YES
DIA 260331C00423000 423.00 57.75 40.05 44 2 1 63.10% YES
DIA 260331C00421000 421.00 33.5 40.1 45 1 0 57.37% YES
DIA 260331C00325000 325.00 136.6 139.25 139.65 830 0 117.09% YES
DIA 260331C00396000 396.00 101.85 68.35 68.75 0 0 60.69% YES
DIA 260331C00395000 395.00 71.6 69.35 69.75 10 0 61.52% YES
DIA 260331C00300000 300.00 111.62 122.5 127.5 2 0 0.00% YES
DIA 260331C00392000 392.00 36.32 44.5 49.5 0 0 0.00% YES
DIA 260331C00285000 285.00 209.01 177 181.95 1 0 156.64% YES
DIA 260331C00398000 398.00 46.21 49 54 0 0 0.00% YES
DIA 260331C00399000 399.00 45.41 48 53 0 0 0.00% YES
DIA 260331C00377000 377.00 51.5 60.5 65.5 0 0 0.00% YES
DIA 260331C00428000 428.00 31.25 42.85 46.45 0 0 89.47% YES
DIA 260331C00378000 378.00 81.44 86.3 86.7 1 0 73.93% YES
DIA 260331C00330000 330.00 144.05 134.3 134.65 1 0 113.87% YES
DIA 260331C00402000 402.00 64.65 60.15 65 1 0 56.40% YES
DIA 260331C00383000 383.00 110.55 79.05 84 1 0 70.61% YES
DIA 260331C00270000 270.00 217.19 205 209.95 1 0 370.78% YES
DIA 260331C00390000 390.00 103.6 74.35 74.75 1 0 65.58% YES
DIA 260331C00385000 385.00 79.1 79.3 79.7 1 0 68.26% YES
DIA 260331C00386000 386.00 78.1 78.35 78.75 1 0 68.85% YES
DIA 260331C00387000 387.00 77.1 77.35 77.75 1 0 68.07% YES

DIA Put Options Chain – 2026-03-31

The table below lists all put options on DIA expiring on 2026-03-31. 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 260331P00350000 350.00 0.07 0 0.05 161 6343 71.09%
DIA 260331P00405000 405.00 0.46 0.04 0.11 2 5532 43.65%
DIA 260331P00355000 355.00 0.16 0 0.05 12 1846 67.97%
DIA 260331P00360000 360.00 0.05 0 0.05 4 1713 64.84%
DIA 260331P00380000 380.00 0.07 0 0.06 1 1273 53.13%
DIA 260331P00470000 470.00 7.75 8.15 10.35 4 504 27.27% YES
DIA 260331P00370000 370.00 0.02 0 0.05 4 475 58.20%
DIA 260331P00440000 440.00 0.76 0.65 0.76 26 445 28.86%
DIA 260331P00480000 480.00 15.15 15.85 17.05 5 433 23.43% YES
DIA 260331P00375000 375.00 0.03 0 0.04 4 419 53.91%
DIA 260331P00410000 410.00 0.21 0.06 0.13 2 409 41.11%
DIA 260331P00450000 450.00 1.6 1.56 1.68 85 407 25.43%
DIA 260331P00465000 465.00 5.6 5.6 5.8 36 388 20.88% YES
DIA 260331P00455000 455.00 2.54 2.43 2.57 22 371 23.94%
DIA 260331P00305000 305.00 4.35 0.12 0.22 11 370 125.59%
DIA 260331P00460000 460.00 3.9 3.75 3.95 142 369 22.67%
DIA 260331P00445000 445.00 1.1 0.98 1.12 4 349 27.10%
DIA 260331P00451000 451.00 1.8 1.69 1.83 26 349 25.14%
DIA 260331P00385000 385.00 0.42 0 0.07 6 337 50.59%
DIA 260331P00400000 400.00 0.08 0.06 0.09 1 297 45.90%
DIA 260331P00275000 275.00 0.87 0 5 2 288 232.67%
DIA 260331P00475000 475.00 11.57 11.6 11.95 1 278 17.85% YES
DIA 260331P00340000 340.00 0.41 0.21 0.31 5 273 101.47%
DIA 260331P00335000 335.00 0.03 0 0.04 1 268 79.69%
DIA 260331P00290000 290.00 0.93 0.08 0.18 176 259 134.96%
DIA 260331P00461000 461.00 4.3 4.05 4.25 19 245 22.24%
DIA 260331P00448000 448.00 1.4 1.28 1.43 4 244 26.11%
DIA 260331P00415000 415.00 0.44 0.08 0.17 1 243 39.16%
DIA 260331P00430000 430.00 0.36 0.3 0.39 44 227 32.84%
DIA 260331P00447000 447.00 1.42 1.17 1.31 104 220 26.39%
DIA 260331P00280000 280.00 0.33 0.04 0.14 2 208 138.48%
DIA 260331P00456000 456.00 2.96 2.65 2.8 43 203 23.66%
DIA 260331P00365000 365.00 0.05 0 0.05 1 188 61.72%
DIA 260331P00389000 389.00 2.76 2.07 2.32 173 173 93.66%
DIA 260331P00300000 300.00 0.02 0 0.04 1 166 104.69%
DIA 260331P00295000 295.00 0.93 0 0 1 157 50.00%
DIA 260331P00425000 425.00 0.45 0.21 0.28 4 141 34.72%
DIA 260331P00454000 454.00 2.38 2.22 2.36 6 138 24.23%
DIA 260331P00459000 459.00 3.4 3.4 3.6 7 133 22.79%
DIA 260331P00453000 453.00 2.34 2.02 2.17 22 127 24.54%
DIA 260331P00449000 449.00 1.52 1.41 1.55 7 127 25.77%
DIA 260331P00424000 424.00 0.24 0.18 0.27 1 117 35.25%
DIA 260331P00270000 270.00 1.06 0 0.04 1 109 128.13%
DIA 260331P00395000 395.00 0.05 0 0.08 1 100 48.63%
DIA 260331P00420000 420.00 0.2 0.14 0.21 3 92 36.72%
DIA 260331P00458000 458.00 3.2 3.15 3.35 8 89 23.24%
DIA 260331P00452000 452.00 1.95 1.85 1.99 9 80 24.82%
DIA 260331P00437000 437.00 0.69 0.5 0.61 2 79 29.96%
DIA 260331P00345000 345.00 0.14 0 0.05 10 77 74.61%
DIA 260331P00265000 265.00 0.01 0 0.04 10 71 132.81%
DIA 260331P00435000 435.00 0.85 0.43 0.54 4 70 30.86%
DIA 260331P00443000 443.00 0.95 0.82 0.95 1 70 27.74%
DIA 260331P00404000 404.00 4.03 1.06 1.21 4 66 66.31%
DIA 260331P00422000 422.00 0.28 0.16 0.24 1 60 36.04%
DIA 260331P00413000 413.00 0.77 0.08 0.16 3 59 40.23%
DIA 260331P00402000 402.00 0.18 0.03 0.1 60 58 45.22%
DIA 260331P00446000 446.00 1.88 1.07 1.21 4 55 26.73%
DIA 260331P00428000 428.00 0.37 0.26 0.34 14 55 33.57%
DIA 260331P00406000 406.00 0.38 0.04 0.11 1 54 42.97%
DIA 260331P00418000 418.00 1.05 0.12 0.19 1 47 37.60%
DIA 260331P00390000 390.00 0.11 0 0.08 1 43 52.05%
DIA 260331P00434000 434.00 0.8 0.39 0.5 2 42 31.18%
DIA 260331P00325000 325.00 1.11 0 0.04 1 40 86.72%
DIA 260331P00419000 419.00 0.62 0.12 0.21 1 39 37.50%
DIA 260331P00433000 433.00 0.47 0.37 0.47 24 39 31.59%
DIA 260331P00457000 457.00 3.17 2.9 3.05 73 36 23.39%
DIA 260331P00394000 394.00 0.11 0 0.08 3 35 49.41%
DIA 260331P00438000 438.00 0.81 0.55 0.66 1 30 29.64%
DIA 260331P00444000 444.00 1.75 0.9 1.03 1 29 27.41%
DIA 260331P00423000 423.00 0.62 0.17 0.25 1 29 35.55%
DIA 260331P00320000 320.00 0.3 0.01 0.18 20 26 105.08%
DIA 260331P00285000 285.00 2.46 0.07 0.17 1 26 138.28%
DIA 260331P00421000 421.00 0.39 0.14 0.23 1 25 36.52%
DIA 260331P00485000 485.00 20.75 20.6 21 2 24 17.14% YES
DIA 260331P00378000 378.00 1.54 0.61 0.74 18 24 82.23%
DIA 260331P00407000 407.00 5.44 1.13 1.28 24 22 64.38%
DIA 260331P00377000 377.00 2.46 0.6 0.72 2 21 82.76%
DIA 260331P00436000 436.00 0.62 0.47 0.57 2 20 30.37%
DIA 260331P00330000 330.00 0.04 0 0.04 1 19 83.59%
DIA 260331P00439000 439.00 1.2 0.6 0.71 7 18 29.27%
DIA 260331P00382000 382.00 0.48 0 0.07 5 18 52.54%
DIA 260331P00412000 412.00 1.2 0.06 0.14 1 18 40.14%
DIA 260331P00441000 441.00 1.59 0.7 0.82 1 17 28.49%
DIA 260331P00315000 315.00 1.5 0.68 0.86 2 17 144.63%
DIA 260331P00409000 409.00 0.19 0.05 0.13 2 17 41.90%
DIA 260331P00416000 416.00 0.27 0.09 0.18 1 16 38.77%
DIA 260331P00386000 386.00 0.18 0 0.07 1 15 50.00%
DIA 260331P00381000 381.00 0.29 0 0.07 1 14 53.13%
DIA 260331P00442000 442.00 1.52 0.76 0.88 1 14 28.10%
DIA 260331P00411000 411.00 0.12 0.06 1.39 1 13 54.18%
DIA 260331P00431000 431.00 0.4 0.33 0.41 14 12 32.35%
DIA 260331P00379000 379.00 0.44 0 0.06 8 12 53.52%
DIA 260331P00384000 384.00 0.5 0 0.07 8 11 51.17%
DIA 260331P00417000 417.00 0.33 0.1 0.18 1 10 38.04%
DIA 260331P00403000 403.00 3.54 1.03 1.19 4 10 66.92%
DIA 260331P00401000 401.00 0.56 0.03 0.09 3 10 45.31%
DIA 260331P00414000 414.00 6.13 1.3 1.47 26 10 59.77%
DIA 260331P00432000 432.00 0.37 0.35 0.44 15 10 31.98%
DIA 260331P00426000 426.00 0.41 0.22 0.3 2 9 34.35%
DIA 260331P00391000 391.00 2.44 0.8 0.94 1 8 74.32%
DIA 260331P00310000 310.00 0.6 0.14 0.23 1 8 122.46%
DIA 260331P00387000 387.00 0.2 0 0.07 1 8 53.32%
DIA 260331P00376000 376.00 2.07 0.59 0.7 1 8 83.30%
DIA 260331P00490000 490.00 25.9 24.25 28.05 6 8 39.38% YES
DIA 260331P00408000 408.00 0.51 0.05 0.13 1 8 42.58%
DIA 260331P00393000 393.00 0.28 0 0.08 1 8 50.00%
DIA 260331P00399000 399.00 0.32 0.01 0.09 5 8 46.68%
DIA 260331P00398000 398.00 1.2 0.47 0.66 4 7 62.55%
DIA 260331P00427000 427.00 0.37 0.26 0.32 29 7 33.99%
DIA 260331P00429000 429.00 2.25 0.26 0.36 2 7 33.13%
DIA 260331P00392000 392.00 2.47 0.83 0.96 1 5 73.83%
DIA 260331P00397000 397.00 0.38 0.02 0.08 3 5 47.27%
DIA 260331P00550000 550.00 88.98 85.6 85.95 1 3 50.68% YES
DIA 260331P00396000 396.00 4.67 1 5.85 2 3 97.66%
DIA 260331P00500000 500.00 34.55 35.6 35.95 3 2 24.90% YES
DIA 260331P00383000 383.00 2.65 0.68 0.81 0 1 79.25%
DIA 260331P00388000 388.00 0.21 0 0.07 1 1 52.54%
DIA 260331P00510000 510.00 29.5 45.6 45.95 2 0 30.47% YES
DIA 260331P00495000 495.00 32.95 30.6 30.95 4 0 21.97% YES
DIA 260331P00505000 505.00 22.78 38.5 43.25 3 0 54.31% YES
DIA 260331P00515000 515.00 53.7 48.5 53.4 2 0 63.82% YES
DIA 260331P00520000 520.00 54.95 55.6 55.95 5 0 35.74% YES
DIA 260331P00530000 530.00 35.34 50.55 55.5 4 0 0.00% YES
DIA 260331P00540000 540.00 40.5 73.9 78.5 8 0 55.18% YES
DIA 260331P00525000 525.00 60.4 60.6 60.95 1 0 38.38% YES
DIA 260331P00555000 555.00 61.07 88.5 93.45 0 0 54.59% YES

DIA 2026-03-31 Options Chain FAQ

1. What does this DIA options chain for 2026-03-31 show?

This page displays the full DIA options chain for contracts expiring on 2026-03-31. 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.

2. How can I use this DIA options chain around key events?

Around earnings, macro data releases, or company-specific news, traders often focus on a single expiration such as 2026-03-31. 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.

3. What is the difference between in-the-money and out-of-the-money options here?

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.

4. How should I read implied volatility (IV) in this DIA options table?

Implied volatility reflects how much movement the market expects for DIA between now and 2026-03-31. 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.

5. Can this single-expiry chain replace a full multi-expiry options overview?

No. This 2026-03-31 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.

6. How often is this DIA options chain for 2026-03-31 updated?

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 2026-03-31 approaches.