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← 13/08 Seduta del 14/08/2026 completa 17/08 →
Spot 7781.69  ·  1766 contratti su 5 scadenze  ·  fonte ibkr  ·  catturata 15/08 00:29 UTC
CALLStrikePUT
OIBidAskMidDeltaIV IVDeltaMidBidAskOI
— 768.70 792.70 780.70 +0.99 23.9% 7010 23.9% -0.01 1.40 1.25 1.55 —
— 758.80 782.80 770.80 +0.99 23.7% 7020 23.7% -0.01 1.43 1.30 1.55 —
— 762.80 765.60 764.20 +0.99 23.6% 7025 23.6% -0.01 1.45 1.35 1.55 —
— 748.90 772.90 760.90 +0.99 23.5% 7030 23.5% -0.01 1.48 1.35 1.60 —
— 738.90 762.90 750.90 +0.99 23.3% 7040 23.3% -0.01 1.52 1.40 1.65 —
— 729.00 753.00 741.00 +0.99 23.1% 7050 23.1% -0.01 1.55 1.45 1.65 —
— — — — +0.99 22.9% 7060 22.9% -0.01 — — — —
— — — — +0.99 22.7% 7070 22.7% -0.01 — — — —
— 704.10 728.10 716.10 +0.99 22.6% 7075 22.6% -0.01 1.65 1.55 1.75 —
— 699.20 723.20 711.20 +0.99 22.5% 7080 22.5% -0.01 1.70 1.55 1.85 —
— 689.20 713.20 701.20 +0.98 22.3% 7090 22.3% -0.02 1.75 1.60 1.90 —
— 679.30 703.30 691.30 +0.98 22.1% 7100 22.1% -0.02 1.80 1.70 1.90 —
— 669.40 693.40 681.40 +0.98 21.9% 7110 21.9% -0.02 1.85 1.70 2.00 —
— 659.40 683.40 671.40 +0.98 21.7% 7120 21.7% -0.02 1.90 1.75 2.05 —
— 654.50 678.50 666.50 +0.98 21.6% 7125 21.6% -0.02 1.95 1.80 2.10 —
— 649.50 673.50 661.50 +0.98 21.5% 7130 21.5% -0.02 1.98 1.85 2.10 —
— 639.60 663.60 651.60 +0.98 21.3% 7140 21.3% -0.02 2.00 1.90 2.10 —
— 629.70 653.70 641.70 +0.98 21.1% 7150 21.1% -0.02 2.08 1.95 2.20 —
— 619.70 643.70 631.70 +0.98 20.9% 7160 20.9% -0.02 2.15 2.05 2.25 —
— 609.80 633.80 621.80 +0.98 20.7% 7170 20.7% -0.02 2.20 2.10 2.30 —
— 604.90 628.90 616.90 +0.98 20.6% 7175 20.6% -0.02 2.25 2.10 2.40 —
— 599.90 623.90 611.90 +0.98 20.5% 7180 20.5% -0.02 2.30 2.15 2.45 —
— 595.00 619.00 607.00 +0.98 20.4% 7185 20.4% -0.02 2.33 2.20 2.45 —
— 590.00 614.00 602.00 +0.98 20.3% 7190 20.3% -0.02 2.35 2.20 2.50 —
— 585.00 609.00 597.00 +0.98 20.2% 7195 20.2% -0.02 2.40 2.25 2.55 —
— 580.10 604.10 592.10 +0.98 20.1% 7200 20.1% -0.02 2.42 2.30 2.55 —
— 575.10 599.10 587.10 +0.98 20.0% 7205 20.0% -0.02 2.45 2.30 2.60 —
— 570.20 594.20 582.20 — — 7210 19.9% -0.02 2.50 2.40 2.60 —
— 565.20 589.20 577.20 +0.98 19.8% 7215 19.8% -0.02 2.55 2.40 2.70 —
— 560.30 584.30 572.30 +0.98 19.7% 7220 — — 2.60 2.45 2.75 —
— 555.30 579.30 567.30 +0.98 19.6% 7225 — — 2.62 2.50 2.75 —
— 550.40 574.40 562.40 — — 7230 — — 2.67 2.50 2.85 —
— 545.40 569.40 557.40 +0.97 19.4% 7235 19.4% -0.03 2.73 2.55 2.90 —
— 540.50 564.50 552.50 +0.97 19.3% 7240 19.3% -0.03 2.77 2.65 2.90 —
— 535.50 559.50 547.50 +0.97 19.2% 7245 19.2% -0.03 2.80 2.65 2.95 —
— 539.60 542.50 541.05 +0.97 19.1% 7250 19.1% -0.03 2.88 2.75 3.00 —
— 525.60 549.60 537.60 +0.97 19.0% 7255 19.0% -0.03 2.92 2.75 3.10 —
— 520.70 544.70 532.70 +0.97 18.9% 7260 18.9% -0.03 2.98 2.85 3.10 —
— 515.80 539.80 527.80 +0.97 18.8% 7265 18.8% -0.03 3.02 2.85 3.20 —
— 510.80 534.80 522.80 +0.97 18.7% 7270 18.7% -0.03 3.05 2.90 3.20 —
— 505.90 529.90 517.90 +0.97 18.6% 7275 18.6% -0.03 3.15 3.00 3.30 —
— 500.90 524.90 512.90 +0.97 18.5% 7280 18.5% -0.03 3.20 3.00 3.40 —
— 496.00 520.00 508.00 +0.97 18.4% 7285 18.4% -0.03 3.20 3.00 3.40 —
— 491.10 515.10 503.10 +0.97 18.3% 7290 18.3% -0.03 3.30 3.10 3.50 —
— 486.10 510.10 498.10 +0.97 18.2% 7295 18.2% -0.03 3.30 3.10 3.50 —
— 481.20 505.20 493.20 +0.97 18.1% 7300 18.1% -0.03 3.40 3.20 3.60 —
— 476.30 500.30 488.30 +0.97 18.0% 7305 18.0% -0.03 3.45 3.20 3.70 —
— 471.30 495.30 483.30 +0.97 17.9% 7310 17.9% -0.03 3.50 3.30 3.70 —
— 466.40 490.40 478.40 +0.97 17.8% 7315 17.8% -0.03 3.60 3.40 3.80 —
— 461.50 485.50 473.50 +0.96 17.7% 7320 17.7% -0.04 3.65 3.50 3.80 —
— 456.60 480.60 468.60 +0.96 17.6% 7325 — — 3.70 3.50 3.90 —
— 451.70 475.70 463.70 — — 7330 17.5% -0.04 3.85 3.70 4.00 —
— 446.70 470.70 458.70 — — 7335 — — 3.85 3.60 4.10 —
— 441.80 465.80 453.80 +0.96 17.3% 7340 17.3% -0.04 3.95 3.80 4.10 —
— 436.90 460.90 448.90 +0.96 17.2% 7345 17.2% -0.04 4.05 3.90 4.20 —
— 432.00 456.00 444.00 +0.96 17.1% 7350 17.1% -0.04 4.10 4.00 4.20 —
— 427.10 451.10 439.10 +0.96 17.0% 7355 17.0% -0.04 4.15 3.90 4.40 —
— 422.20 446.20 434.20 +0.96 16.9% 7360 16.9% -0.04 4.25 4.00 4.50 —
— 417.30 441.30 429.30 +0.96 16.8% 7365 16.8% -0.04 4.35 4.10 4.60 —
— 412.40 436.40 424.40 +0.96 16.7% 7370 16.7% -0.04 4.45 4.30 4.60 —
— 407.50 431.50 419.50 +0.95 16.6% 7375 16.6% -0.05 4.55 4.40 4.70 —
— 402.60 426.60 414.60 +0.95 16.5% 7380 16.5% -0.05 4.65 4.40 4.90 —
— 397.70 421.70 409.70 +0.95 16.4% 7385 16.4% -0.05 4.75 4.60 4.90 —
— 392.80 416.80 404.80 +0.95 16.3% 7390 16.3% -0.05 4.85 4.60 5.10 —
— 387.90 411.90 399.90 +0.95 16.2% 7395 16.2% -0.05 4.95 4.70 5.20 —
— 392.10 394.90 393.50 +0.95 16.1% 7400 16.1% -0.05 5.10 5.00 5.20 —
— 378.20 402.20 390.20 +0.95 16.0% 7405 16.0% -0.05 5.20 5.10 5.30 —
— 373.30 397.30 385.30 +0.95 15.9% 7410 15.9% -0.05 5.30 5.00 5.60 —
— 368.40 392.40 380.40 +0.95 15.8% 7415 15.8% -0.05 5.45 5.20 5.70 —
— 363.60 387.60 375.60 +0.94 15.7% 7420 15.7% -0.06 5.55 5.30 5.80 —
— 358.70 382.70 370.70 +0.94 15.6% 7425 15.6% -0.06 5.65 5.40 5.90 —
— 353.90 377.90 365.90 +0.94 15.5% 7430 15.5% -0.06 5.80 5.50 6.10 —
— 349.00 373.00 361.00 +0.94 15.4% 7435 15.4% -0.06 5.95 5.70 6.20 —
— 344.20 368.20 356.20 +0.94 15.3% 7440 15.3% -0.06 6.10 5.80 6.40 —
— 339.30 363.30 351.30 +0.94 15.2% 7445 15.2% -0.06 6.25 6.00 6.50 —
— 343.50 346.30 344.90 +0.94 15.1% 7450 15.1% -0.06 6.45 6.30 6.60 —
— 329.70 353.70 341.70 +0.93 15.0% 7455 15.0% -0.07 6.55 6.30 6.80 —
— 324.90 348.90 336.90 +0.93 14.9% 7460 14.9% -0.07 6.75 6.50 7.00 —
— 320.10 344.10 332.10 +0.93 14.8% 7465 14.8% -0.07 6.90 6.60 7.20 —
— 315.30 339.30 327.30 +0.93 14.7% 7470 14.7% -0.07 7.10 6.80 7.40 —
— 310.50 334.50 322.50 +0.93 14.6% 7475 14.6% -0.07 7.30 7.00 7.60 —
— 305.70 329.70 317.70 +0.92 14.5% 7480 14.5% -0.08 7.55 7.40 7.70 —
— 300.90 324.90 312.90 +0.92 14.4% 7485 14.4% -0.08 7.75 7.60 7.90 —
— 296.10 320.10 308.10 +0.92 14.3% 7490 14.3% -0.08 7.90 7.60 8.20 —
— 291.30 315.30 303.30 +0.92 14.2% 7495 14.2% -0.08 8.10 7.80 8.40 —
— 295.60 298.30 296.95 +0.92 14.2% 7500 14.2% -0.08 8.45 8.30 8.60 —
— 281.80 305.80 293.80 +0.91 14.1% 7505 14.1% -0.09 8.65 8.50 8.80 —
— 286.10 288.80 287.45 +0.91 14.0% 7510 14.0% -0.09 8.85 8.60 9.10 —
— 272.40 296.40 284.40 +0.91 13.9% 7515 13.9% -0.09 9.10 8.80 9.40 —
— 267.70 291.70 279.70 +0.91 13.8% 7520 13.8% -0.09 9.40 9.20 9.60 —
— 271.90 274.50 273.20 +0.90 13.7% 7525 13.7% -0.10 9.75 9.60 9.90 —
— 258.20 282.20 270.20 +0.90 13.6% 7530 13.6% -0.10 9.95 9.80 10.10 —
— 253.60 277.60 265.60 +0.90 13.5% 7535 13.5% -0.10 10.30 10.10 10.50 —
— 257.90 260.60 259.25 +0.89 13.5% 7540 13.5% -0.11 10.65 10.50 10.80 —
— 244.20 268.20 256.20 +0.89 13.4% 7545 13.4% -0.11 10.95 10.80 11.10 —
— 248.60 251.30 249.95 +0.89 13.3% 7550 13.3% -0.11 11.25 11.10 11.40 —
— 235.00 259.00 247.00 +0.88 13.2% 7555 13.2% -0.12 11.60 11.30 11.90 —
— 239.30 242.00 240.65 +0.88 13.1% 7560 13.1% -0.12 12.05 11.90 12.20 —
— 225.70 249.70 237.70 +0.88 13.1% 7565 13.1% -0.12 12.40 12.20 12.60 —
— 230.10 232.80 231.45 +0.87 13.0% 7570 13.0% -0.13 12.80 12.60 13.00 —
— 225.60 228.30 226.95 +0.87 12.9% 7575 12.9% -0.13 13.25 13.10 13.40 —
— 221.00 223.70 222.35 +0.86 12.8% 7580 12.8% -0.14 13.65 13.50 13.80 —
— — — — — — 7585 — — 14.10 13.90 14.30 —
— 212.00 214.70 213.35 +0.85 12.7% 7590 12.7% -0.15 14.60 14.40 14.80 —
— 200.20 219.10 209.65 +0.85 12.6% 7595 12.6% -0.15 15.10 14.90 15.30 —
— 203.00 205.70 204.35 +0.85 12.6% 7600 12.6% -0.15 — — — —
— — — — +0.84 12.5% 7605 12.5% -0.16 16.15 15.80 16.50 —
— 194.20 196.80 195.50 +0.84 12.4% 7610 12.4% -0.16 16.70 16.50 16.90 —
— 182.80 202.80 192.80 +0.83 12.3% 7615 12.3% -0.17 17.30 17.00 17.60 —
— 185.40 188.00 186.70 +0.82 12.3% 7620 12.3% -0.18 17.90 17.70 18.10 —
— 181.00 183.70 182.35 +0.82 12.2% 7625 12.2% -0.18 18.60 18.40 18.80 —
— 176.70 179.30 178.00 +0.81 12.1% 7630 12.1% -0.19 19.25 19.10 19.40 —
— 165.40 185.40 175.40 +0.81 12.1% 7635 12.1% -0.19 19.95 19.80 20.10 —
— 161.20 181.20 171.20 +0.80 12.0% 7640 12.0% -0.20 20.70 20.50 20.90 —
— 156.90 176.90 166.90 +0.79 11.9% 7645 11.9% -0.21 21.40 21.20 21.60 —
— 159.70 162.30 161.00 +0.79 11.9% 7650 11.9% -0.21 22.25 22.00 22.50 —
— 148.50 168.50 158.50 +0.78 11.8% 7655 11.8% -0.22 23.05 22.90 23.20 —
— 151.30 154.00 152.65 +0.77 11.7% 7660 11.7% -0.23 23.90 23.70 24.10 —
— 140.30 160.30 150.30 +0.77 11.7% 7665 11.7% -0.23 24.80 24.60 25.00 —
— 136.20 156.20 146.20 +0.76 11.6% 7670 11.6% -0.24 25.70 25.50 25.90 —
— 139.20 141.80 140.50 +0.75 11.5% 7675 11.5% -0.25 26.70 26.50 26.90 —
— 135.10 137.80 136.45 +0.74 11.4% 7680 11.4% -0.26 27.70 27.50 27.90 —
— 124.20 144.20 134.20 +0.74 11.4% 7685 11.4% -0.26 28.70 28.50 28.90 —
— 120.30 140.30 130.30 +0.73 11.3% 7690 — — 29.80 29.60 30.00 —
— 116.40 136.40 126.40 — — 7695 — — 30.95 30.70 31.20 —
— 119.70 122.20 120.95 — — 7700 — — 32.10 31.90 32.30 —
— 116.70 117.60 117.15 — — 7705 — — 33.35 33.10 33.60 —
— 113.00 113.80 113.40 — — 7710 11.0% -0.31 34.60 34.40 34.80 —
— 109.30 110.20 109.75 +0.68 11.0% 7715 11.0% -0.32 — — — —
— 105.70 106.50 106.10 +0.67 10.9% 7720 — — 37.25 37.00 37.50 —
— 102.10 103.00 102.55 +0.66 10.9% 7725 — — 38.70 38.50 38.90 —
— 98.60 99.40 99.00 — — 7730 — — 40.15 39.90 40.40 —
— 95.10 96.00 95.55 — — 7735 — — 41.65 41.40 41.90 —
— 91.70 92.50 92.10 — — 7740 — — 43.25 43.00 43.50 —
— 88.30 89.20 88.75 — — 7745 — — 44.85 44.60 45.10 —
— 85.00 85.90 85.45 — — 7750 — — 46.55 46.30 46.80 —
— 81.80 82.60 82.20 — — 7755 — — 48.30 48.00 48.60 —
— 78.60 79.50 79.05 — — 7760 — — 50.10 49.80 50.40 —
— 75.50 76.40 75.95 — — 7765 — — 52.00 51.70 52.30 —
— 72.50 73.30 72.90 — — 7770 — — 53.95 53.70 54.20 —
— 69.70 70.30 70.00 — — 7775 — — 55.95 55.70 56.20 —
— 66.80 67.40 67.10 — — 7780 10.3% -0.47 58.00 57.70 58.30 —
— 63.90 64.60 64.25 +0.52 10.2% 7785 10.2% -0.48 60.15 59.90 60.40 —
— 61.10 61.80 61.45 +0.51 10.2% 7790 10.2% -0.49 62.40 62.10 62.70 —
— 58.40 59.10 58.75 +0.49 10.2% 7795 10.2% -0.51 64.70 64.40 65.00 —
— 55.80 56.40 56.10 +0.48 10.1% 7800 — — 67.00 66.70 67.30 —
— 53.30 53.90 53.60 +0.47 10.1% 7805 10.1% -0.53 69.40 69.10 69.70 —
— 50.80 51.40 51.10 +0.45 10.1% 7810 10.1% -0.55 71.90 71.60 72.20 —
— 48.20 49.00 48.60 +0.44 10.0% 7815 10.0% -0.56 74.60 74.20 75.00 —
— 46.00 46.60 46.30 +0.43 10.0% 7820 10.0% -0.57 77.25 76.80 77.70 —
— 43.70 44.30 44.00 +0.41 9.9% 7825 9.9% -0.59 79.95 79.50 80.40 —
— 41.50 42.10 41.80 +0.40 9.9% 7830 9.9% -0.60 82.75 82.30 83.20 —
— 39.40 39.90 39.65 — — 7835 9.9% -0.61 85.65 85.20 86.10 —
— 37.20 38.00 37.60 +0.38 9.8% 7840 9.8% -0.62 88.60 88.20 89.00 —
— 35.20 36.00 35.60 +0.36 9.8% 7845 9.8% -0.64 91.60 91.20 92.00 —
— 33.40 34.00 33.70 +0.35 9.7% 7850 — — 94.70 94.30 95.10 —
— 31.50 32.30 31.90 — — 7855 — — 97.80 97.40 98.20 —
— 29.70 30.50 30.10 — — 7860 — — 101.05 100.60 101.50 —
— 28.20 28.60 28.40 — — 7865 — — 104.35 103.90 104.80 —
— 26.50 27.00 26.75 +0.30 9.6% 7870 — — 108.90 98.90 118.90 —
— 24.90 25.50 25.20 — — 7875 — — 110.40 100.40 120.40 —
— 23.50 23.90 23.70 — — 7880 9.5% -0.72 113.80 103.80 123.80 —
— 22.10 22.50 22.30 +0.26 9.5% 7885 9.5% -0.74 117.40 107.40 127.40 —
— 20.70 21.10 20.90 +0.25 9.4% 7890 9.4% -0.75 121.00 111.00 131.00 —
— 19.30 20.00 19.65 +0.24 9.4% 7895 9.4% -0.76 124.60 114.60 134.60 —
— 18.20 18.60 18.40 +0.23 9.4% 7900 9.4% -0.77 128.30 118.30 138.30 —
— 16.90 17.60 17.25 +0.22 9.4% 7905 9.4% -0.78 132.10 122.10 142.10 —
— 15.80 16.50 16.15 +0.21 9.3% 7910 9.3% -0.79 136.00 126.00 146.00 —
— 13.80 14.30 14.05 +0.19 9.3% 7920 9.3% -0.81 143.80 133.80 153.80 —
— 12.90 13.30 13.10 +0.18 9.3% 7925 9.3% -0.82 147.90 137.90 157.90 —
— 12.00 12.60 12.30 +0.17 9.3% 7930 9.3% -0.83 152.00 142.00 162.00 —
— 10.40 10.80 10.60 +0.15 9.2% 7940 9.2% -0.85 160.30 150.30 170.30 —
— 9.00 9.30 9.15 +0.13 9.2% 7950 9.2% -0.87 168.80 158.80 178.80 —
— 7.80 8.10 7.95 +0.12 9.2% 7960 9.2% -0.88 177.50 167.50 187.50 —
— 6.70 7.00 6.85 +0.11 9.2% 7970 9.2% -0.89 186.40 176.40 196.40 —
— 6.20 6.50 6.35 +0.10 9.2% 7975 9.2% -0.90 190.80 180.80 200.80 —
— 5.80 6.10 5.95 +0.09 9.2% 7980 9.2% -0.91 195.40 185.40 205.40 —
— 4.90 5.50 5.20 — — 7990 9.3% -0.92 204.50 194.50 214.50 —
— 4.30 4.60 4.45 +0.07 9.3% 8000 9.3% -0.93 215.05 213.70 216.40 —
— 3.70 4.00 3.85 +0.06 9.3% 8010 9.3% -0.94 223.20 211.20 235.20 —
— 3.20 3.50 3.35 +0.06 9.4% 8020 9.4% -0.94 232.60 220.60 244.60 —
— 2.90 3.40 3.15 +0.05 9.4% 8025 9.4% -0.95 237.40 225.40 249.40 —
— 2.70 3.10 2.90 +0.05 9.4% 8030 9.4% -0.95 242.10 230.10 254.10 —
— 2.35 2.75 2.55 — — 8040 9.5% -0.96 251.70 239.70 263.70 —
— 2.15 2.35 2.25 +0.04 9.6% 8050 9.6% -0.96 261.40 249.40 273.40 —
— 1.80 2.15 1.98 +0.04 9.7% 8060 — — 271.10 259.10 283.10 —
— 1.60 1.90 1.75 +0.03 9.7% 8070 9.7% -0.97 280.90 268.90 292.90 —
— 1.50 1.80 1.65 +0.03 9.8% 8075 9.8% -0.97 285.80 273.80 297.80 —
— 1.40 1.70 1.55 +0.03 9.8% 8080 9.8% -0.97 290.60 278.60 302.60 —
— 1.25 1.55 1.40 +0.03 9.9% 8090 9.9% -0.98 300.50 288.50 312.50 —
— 1.10 1.40 1.25 +0.02 10.0% 8100 10.0% -0.98 310.30 298.30 322.30 —
— 1.00 1.30 1.15 +0.02 10.1% 8110 10.1% -0.98 320.20 308.20 332.20 —
— 0.90 1.20 1.05 +0.02 10.2% 8120 10.2% -0.98 330.00 318.00 342.00 —
— 0.85 1.15 1.00 +0.02 10.3% 8125 10.3% -0.98 335.00 323.00 347.00 —
— 0.85 1.10 0.97 +0.02 10.3% 8130 — — 339.90 327.90 351.90 —
— 0.75 1.00 0.88 — — 8140 — — 349.80 337.80 361.80 —
— 0.70 0.95 0.82 — — 8150 — — 359.80 347.80 371.80 —
— 0.60 0.80 0.70 +0.01 10.8% 8175 — — 384.60 372.60 396.60 —
— 0.50 0.70 0.60 +0.01 11.2% 8200 — — 409.40 397.40 421.40 —
— 0.45 0.60 0.53 — — 8225 — — 434.30 422.30 446.30 —
— 0.40 0.55 0.47 — — 8250 11.9% -0.99 459.20 447.20 471.20 —
— 0.35 0.50 0.42 +0.01 12.3% 8275 12.3% -0.99 484.10 472.10 496.10 —
— 0.30 0.50 0.40 +0.00 12.7% 8300 12.7% -1.00 509.10 497.10 521.10 —
— 0.25 0.45 0.35 +0.00 13.1% 8325 13.1% -1.00 534.00 522.00 546.00 —
— 0.25 0.45 0.35 +0.00 13.5% 8350 13.5% -1.00 558.90 546.90 570.90 —
— 0.20 0.40 0.30 +0.00 13.9% 8375 13.9% -1.00 583.90 571.90 595.90 —
— 0.20 0.30 0.25 +0.00 14.2% 8400 14.2% -1.00 608.80 596.80 620.80 —
— 0.15 0.35 0.25 +0.00 14.6% 8425 14.6% -1.00 633.80 621.80 645.80 —
— 0.15 0.35 0.25 +0.00 14.9% 8450 14.9% -1.00 658.70 646.70 670.70 —
— 0.15 0.35 0.25 +0.00 15.7% 8500 15.7% -1.00 708.60 696.60 720.60 —

Come leggere: ogni riga è uno strike, con la call a sinistra e la put a destra. La riga evidenziata è lo strike più vicino allo spot (ATM); lo sfondo più scuro indica i contratti già in the money. IV = volatilità implicita, OI = open interest (disponibile dal 03/09/2026). “—” = dato non arrivato quella sera. Il grafico mostra la IV per strike della scadenza scelta.