ORCL options chain $129.09

← Back to ORCL stock page • Analyze move probabilities →

2026-10-23 Expiration Analytics — 2 trading days (2 calendar days)
1σ Expected Move (68.3%)
±5.0%
$122.69 — $135.49
Annualized Realized Vol
55.6%
Recent 20-day HV: 57.6%
Deep Dive Calculator
Test custom move targets or option breakevens

In-the-money contracts are shaded relative to the current underlying price ($129.09).

Calls

Contract Strike Move % Touch Prob Expire ITM % Last Change Bid Ask Volume Breakeven Analysis
ORCL261023C00080000 $80.00 -38.0% 100.0% 100.0% $51.74 +1.39 (+2.8%) $48.91 $49.36 46 $129.36 (80%) Prob →
ORCL261023C00085000 $85.00 -34.2% 100.0% 100.0% $44.00 -1.92 (-4.2%) $44.49 $44.74 27 $129.74 (76%) Prob →
ORCL261023C00090000 $90.00 -30.3% 100.0% 100.0% $39.85 -1.15 (-2.8%) $38.30 $39.92 4 $129.92 (74%) Prob →
ORCL261023C00095000 $95.00 -26.4% 100.0% 100.0% $35.32 -1.56 (-4.2%) $34.21 $34.62 11 $129.62 (77%) Prob →
ORCL261023C00100000 $100.00 -22.5% 100.0% 100.0% $28.68 -3.20 (-10.0%) $29.07 $29.65 218 $129.65 (76%) Prob →
ORCL261023C00105000 $105.00 -18.7% 100.0% 100.0% $24.14 -3.46 (-12.5%) $24.14 $24.53 48 $129.53 (78%) Prob →
ORCL261023C00110000 $110.00 -14.8% 100.0% 99.6% $20.45 -1.53 (-7.0%) $18.82 $18.92 4 $128.92 (86%) Prob →
ORCL261023C00115000 $115.00 -10.9% 100.0% 98.7% $15.30 -1.30 (-7.8%) $14.28 $14.39 18 $129.39 (80%) Prob →
ORCL261023C00116000 $116.00 -10.1% 100.0% 97.5% $14.00 -1.96 (-12.3%) $13.04 $13.39 98 $129.39 (80%) Prob →
ORCL261023C00117000 $117.00 -9.4% 100.0% 97.3% $13.25 +0.44 (+3.4%) $12.22 $12.38 20 $129.38 (80%) Prob →
ORCL261023C00118000 $118.00 -8.6% 100.0% 96.5% $12.09 -2.63 (-17.9%) $10.85 $11.26 60 $129.26 (81%) Prob →
ORCL261023C00119000 $119.00 -7.8% 100.0% 95.6% $9.60 -4.14 (-30.1%) $10.24 $10.45 1 $129.45 (79%) Prob →
ORCL261023C00120000 $120.00 -7.0% 100.0% 93.7% $9.29 -1.66 (-15.2%) $9.29 $9.39 189 $129.39 (80%) Prob →
ORCL261023C00121000 $121.00 -6.3% 100.0% 92.5% $7.69 -2.41 (-23.9%) $8.28 $8.53 47 $129.53 (78%) Prob →
ORCL261023C00122000 $122.00 -5.5% 100.0% 89.6% $6.68 -2.52 (-27.4%) $7.44 $7.45 7 $129.45 (79%) Prob →
ORCL261023C00123000 $123.00 -4.7% 100.0% 85.8% $7.49 -1.36 (-15.4%) $6.59 $6.82 17 $129.82 (75%) Prob →
ORCL261023C00124000 $124.00 -3.9% 100.0% 81.5% $6.41 -2.39 (-27.2%) $5.77 $5.97 8 $129.97 (73%) Prob →
ORCL261023C00125000 $125.00 -3.2% 100.0% 77.7% $4.93 -1.67 (-25.3%) $4.93 $5.02 635 $130.02 (73%) Prob →
ORCL261023C00126000 $126.00 -2.4% 100.0% 73.3% $4.21 -1.74 (-29.2%) $4.21 $4.27 44 $130.27 (71%) Prob →
ORCL261023C00127000 $127.00 -1.6% 100.0% 65.8% $3.45 -1.70 (-33.0%) $3.48 $3.53 497 $130.53 (68%) Prob →
ORCL261023C00128000 $128.00 -0.8% 100.0% 55.8% $2.90 -1.70 (-37.0%) $2.90 $2.98 1,080 $130.98 (60%) Prob →
ORCL261023C00129000 $129.00 -0.1% 100.0% 48.1% $2.35 -1.60 (-40.5%) $2.35 $2.40 1,994 $131.40 (55%) Prob →
ORCL261023C00130000 $130.00 +0.7% 73.3% 41.9% $1.89 -1.51 (-44.4%) $1.89 $1.92 13,382 $131.92 (50%) Prob →
ORCL261023C00131000 $131.00 +1.5% 59.6% 34.2% $1.49 -1.38 (-48.1%) $1.49 $1.53 3,828 $132.53 (43%) Prob →
ORCL261023C00132000 $132.00 +2.3% 49.4% 23.8% $1.15 -1.24 (-51.9%) $1.15 $1.17 3,029 $133.17 (38%) Prob →
ORCL261023C00133000 $133.00 +3.0% 40.4% 19.4% $0.88 -1.02 (-53.7%) $0.88 $0.90 2,376 $133.90 (32%) Prob →
ORCL261023C00134000 $134.00 +3.8% 30.8% 16.2% $0.68 -0.93 (-57.8%) $0.68 $0.69 1,453 $134.69 (26%) Prob →
ORCL261023C00135000 $135.00 +4.6% 24.2% 13.5% $0.49 -0.81 (-62.3%) $0.47 $0.49 7,577 $135.49 (21%) Prob →
ORCL261023C00136000 $136.00 +5.4% 19.4% 9.6% $0.39 -0.67 (-63.2%) $0.39 $0.40 1,340 $136.40 (18%) Prob →
ORCL261023C00137000 $137.00 +6.1% 13.8% 8.5% $0.27 -0.59 (-68.6%) $0.26 $0.27 3,246 $137.27 (13%) Prob →
ORCL261023C00138000 $138.00 +6.9% 11.3% 7.9% $0.23 -0.39 (-62.9%) $0.23 $0.24 1,837 $138.24 (11%) Prob →
ORCL261023C00139000 $139.00 +7.7% 9.8% 6.2% $0.15 -0.38 (-71.7%) $0.14 $0.15 642 $139.15 (9%) Prob →
ORCL261023C00140000 $140.00 +8.5% 8.3% 4.4% $0.12 -0.29 (-70.7%) $0.10 $0.12 8,699 $140.12 (8%) Prob →
ORCL261023C00141000 $141.00 +9.2% 6.2% 3.7% $0.10 -0.21 (-67.7%) $0.08 $0.13 563 $141.13 (6%) Prob →
ORCL261023C00142000 $142.00 +10.0% 5.4% 3.3% $0.07 -0.19 (-73.1%) $0.06 $0.07 1,046 $142.07 (5%) Prob →
ORCL261023C00143000 $143.00 +10.8% 4.4% 2.7% $0.06 -0.14 (-70.0%) $0.05 $0.06 2,110 $143.06 (4%) Prob →
ORCL261023C00144000 $144.00 +11.6% 3.5% 2.5% $0.08 -0.07 (-46.7%) $0.08 $0.09 210 $144.09 (4%) Prob →
ORCL261023C00145000 $145.00 +12.3% 3.1% 1.9% $0.07 -0.05 (-41.7%) $0.07 $0.08 3,641 $145.08 (3%) Prob →
ORCL261023C00146000 $146.00 +13.1% 2.9% 1.5% $0.06 -0.06 (-50.0%) $0.06 $0.07 588 $146.07 (3%) Prob →
ORCL261023C00147000 $147.00 +13.9% 2.3% 1.5% $0.03 -0.08 (-72.7%) $0.02 $0.03 431 $147.03 (2%) Prob →
ORCL261023C00148000 $148.00 +14.6% 1.9% 1.3% $0.03 -0.06 (-66.7%) $0.01 $0.06 109 $148.06 (2%) Prob →
ORCL261023C00149000 $149.00 +15.4% 1.7% 1.2% $0.05 -0.04 (-44.4%) $0.01 $0.06 42 $149.06 (2%) Prob →
ORCL261023C00150000 $150.00 +16.2% 1.5% 1.2% $0.05 -0.01 (-16.7%) $0.01 $0.02 262 $150.02 (2%) Prob →
ORCL261023C00152500 $152.50 +18.1% 1.3% 1.0% $0.02 -0.02 (-50.0%) $0.04 $0.05 116 $152.55 (1%) Prob →
ORCL261023C00155000 $155.00 +20.1% 1.0% 0.8% $0.04 +0.00 (+0.0%) $0.04 $0.05 126 $155.05 (1%) Prob →
ORCL261023C00157500 $157.50 +22.0% 1.0% 0.6% $0.02 -0.01 (-33.3%) $0.01 $0.05 97 $157.55 (1%) Prob →
ORCL261023C00160000 $160.00 +23.9% 0.4% 0.4% $0.01 -0.02 (-66.7%) $0.01 $0.04 85 $160.04 (0%) Prob →
ORCL261023C00162500 $162.50 +25.9% 0.4% 0.4% $0.03 +0.01 (+50.0%) $0.03 $0.04 12 $162.54 (0%) Prob →
ORCL261023C00165000 $165.00 +27.8% 0.4% 0.2% $0.03 +0.01 (+50.0%) $0.03 $0.04 126 $165.04 (0%) Prob →
ORCL261023C00167500 $167.50 +29.8% 0.4% 0.2% $0.01 +0.00 (+0.0%) $0.00 $0.04 174 $167.54 (0%) Prob →
ORCL261023C00170000 $170.00 +31.7% 0.4% 0.2% $0.01 +0.00 (+0.0%) $0.00 $0.01 109 $170.01 (0%) Prob →
ORCL261023C00172500 $172.50 +33.6% 0.4% 0.2% $0.01 +0.00 (+0.0%) $0.00 $0.03 11 $172.53 (0%) Prob →
ORCL261023C00175000 $175.00 +35.6% 0.4% 0.2% $0.01 +0.00 (+0.0%) $0.00 $0.01 16 $175.01 (0%) Prob →
ORCL261023C00177500 $177.50 +37.5% 0.4% 0.2% $0.01 +0.00 (+0.0%) $0.00 $0.03 150 $177.53 (0%) Prob →
ORCL261023C00180000 $180.00 +39.4% 0.4% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 16 $180.01 (0%) Prob →
ORCL261023C00182500 $182.50 +41.4% 0.4% 0.0% $0.03 +0.02 (+200.0%) $0.00 $0.01 294 $182.51 (0%) Prob →
ORCL261023C00185000 $185.00 +43.3% 0.2% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 2 $185.01 (0%) Prob →
ORCL261023C00187500 $187.50 +45.2% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.03 2 $187.53 (0%) Prob →
ORCL261023C00190000 $190.00 +47.2% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.03 43 $190.03 (0%) Prob →
ORCL261023C00195000 $195.00 +51.1% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 2 $195.01 (0%) Prob →
ORCL261023C00200000 $200.00 +54.9% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 1 $200.01 (0%) Prob →
ORCL261023C00205000 $205.00 +58.8% 0.0% 0.0% $0.03 +0.01 (+50.0%) $0.00 $0.07 229 $205.07 (0%) Prob →
ORCL261023C00210000 $210.00 +62.7% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 1 $210.01 (0%) Prob →
ORCL261023C00215000 $215.00 +66.6% 0.0% 0.0% $0.03 +0.02 (+200.0%) $0.00 $0.03 2 $215.03 (0%) Prob →
ORCL261023C00220000 $220.00 +70.4% 0.0% 0.0% $0.02 +0.01 (+100.0%) $0.00 $0.06 10 $220.06 (0%) Prob →
ORCL261023C00225000 $225.00 +74.3% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 1 $225.01 (0%) Prob →
ORCL261023C00230000 $230.00 +78.2% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.03 4 $230.03 (0%) Prob →

Puts

Contract Strike Move % Touch Prob Expire ITM % Last Change Bid Ask Volume Breakeven Analysis
ORCL261023P00080000 $80.00 -38.0% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.03 1,348 $79.97 (0%) Prob →
ORCL261023P00085000 $85.00 -34.2% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 10 $84.99 (0%) Prob →
ORCL261023P00090000 $90.00 -30.3% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.00 $0.01 33 $89.99 (0%) Prob →
ORCL261023P00095000 $95.00 -26.4% 0.0% 0.0% $0.01 +0.00 (+0.0%) $0.01 $0.02 302 $94.98 (0%) Prob →
ORCL261023P00100000 $100.00 -22.5% 0.0% 0.0% $0.02 -0.01 (-33.3%) $0.03 $0.04 4 $99.96 (0%) Prob →
ORCL261023P00105000 $105.00 -18.7% 0.0% 0.0% $0.02 -0.01 (-33.3%) $0.04 $0.05 82 $104.95 (0%) Prob →
ORCL261023P00110000 $110.00 -14.8% 1.0% 0.4% $0.02 -0.04 (-66.7%) $0.01 $0.02 382 $109.98 (1%) Prob →
ORCL261023P00115000 $115.00 -10.9% 3.1% 1.3% $0.05 -0.04 (-44.4%) $0.04 $0.05 314 $114.95 (3%) Prob →
ORCL261023P00116000 $116.00 -10.1% 4.2% 2.5% $0.10 +0.01 (+11.1%) $0.05 $0.06 22 $115.94 (4%) Prob →
ORCL261023P00117000 $117.00 -9.4% 4.6% 2.7% $0.11 +0.02 (+22.2%) $0.09 $0.12 345 $116.88 (5%) Prob →
ORCL261023P00118000 $118.00 -8.6% 6.3% 3.5% $0.14 +0.01 (+7.7%) $0.09 $0.15 93 $117.85 (6%) Prob →
ORCL261023P00119000 $119.00 -7.8% 8.3% 4.4% $0.17 +0.00 (+0.0%) $0.16 $0.18 237 $118.82 (8%) Prob →
ORCL261023P00120000 $120.00 -7.0% 11.5% 6.3% $0.18 -0.05 (-21.7%) $0.17 $0.18 3,013 $119.82 (11%) Prob →
ORCL261023P00121000 $121.00 -6.3% 16.0% 7.5% $0.28 +0.02 (+7.7%) $0.23 $0.28 351 $120.72 (14%) Prob →
ORCL261023P00122000 $122.00 -5.5% 19.8% 10.4% $0.34 +0.00 (+0.0%) $0.32 $0.38 747 $121.62 (19%) Prob →
ORCL261023P00123000 $123.00 -4.7% 25.0% 14.2% $0.46 +0.02 (+4.5%) $0.46 $0.48 695 $122.52 (23%) Prob →
ORCL261023P00124000 $124.00 -3.9% 31.7% 18.5% $0.61 +0.04 (+7.0%) $0.61 $0.64 1,343 $123.36 (27%) Prob →
ORCL261023P00125000 $125.00 -3.2% 39.6% 22.3% $0.80 +0.01 (+1.3%) $0.78 $0.80 3,162 $124.20 (34%) Prob →
ORCL261023P00126000 $126.00 -2.4% 48.7% 26.7% $1.03 +0.05 (+5.1%) $1.01 $1.03 853 $124.97 (39%) Prob →
ORCL261023P00127000 $127.00 -1.6% 57.9% 34.2% $1.40 +0.19 (+15.7%) $1.33 $1.40 1,705 $125.60 (44%) Prob →
ORCL261023P00128000 $128.00 -0.8% 69.0% 44.2% $1.77 +0.27 (+18.0%) $1.75 $1.79 2,249 $126.21 (51%) Prob →
ORCL261023P00129000 $129.00 -0.1% 81.9% 51.9% $2.21 +0.33 (+17.6%) $2.18 $2.23 2,330 $126.77 (55%) Prob →
ORCL261023P00130000 $130.00 +0.7% 100.0% 58.1% $2.74 +0.49 (+21.8%) $2.70 $2.74 3,552 $127.26 (62%) Prob →
ORCL261023P00131000 $131.00 +1.5% 100.0% 65.8% $3.35 +0.57 (+20.5%) $3.32 $3.38 938 $127.62 (65%) Prob →
ORCL261023P00132000 $132.00 +2.3% 100.0% 76.2% $4.00 +0.75 (+23.1%) $3.88 $4.03 525 $127.97 (69%) Prob →
ORCL261023P00133000 $133.00 +3.0% 100.0% 80.6% $4.75 +0.90 (+23.4%) $4.59 $4.71 319 $128.29 (74%) Prob →
ORCL261023P00134000 $134.00 +3.8% 100.0% 83.8% $5.60 +1.05 (+23.1%) $5.52 $5.60 373 $128.40 (75%) Prob →
ORCL261023P00135000 $135.00 +4.6% 100.0% 86.5% $6.47 +1.07 (+19.8%) $6.27 $6.47 275 $128.53 (77%) Prob →
ORCL261023P00136000 $136.00 +5.4% 100.0% 90.4% $7.57 +1.57 (+26.2%) $7.17 $7.22 115 $128.78 (81%) Prob →
ORCL261023P00137000 $137.00 +6.1% 100.0% 91.5% $8.18 +1.23 (+17.7%) $8.03 $8.18 74 $128.82 (81%) Prob →
ORCL261023P00138000 $138.00 +6.9% 100.0% 92.1% $9.24 +1.34 (+17.0%) $8.92 $9.17 85 $128.83 (81%) Prob →
ORCL261023P00139000 $139.00 +7.7% 100.0% 93.8% $10.09 +1.69 (+20.1%) $10.04 $10.19 111 $128.81 (81%) Prob →
ORCL261023P00140000 $140.00 +8.5% 100.0% 95.6% $10.91 +1.32 (+13.8%) $10.85 $10.91 253 $129.09 (83%) Prob →
ORCL261023P00141000 $141.00 +9.2% 100.0% 96.3% $12.02 +2.04 (+20.4%) $11.88 $12.20 191 $128.80 (81%) Prob →
ORCL261023P00142000 $142.00 +10.0% 100.0% 96.7% $13.05 +1.75 (+15.5%) $12.80 $13.17 35 $128.83 (81%) Prob →
ORCL261023P00143000 $143.00 +10.8% 100.0% 97.3% $14.10 +1.60 (+12.8%) $13.96 $14.22 53 $128.78 (81%) Prob →
ORCL261023P00144000 $144.00 +11.6% 100.0% 97.5% $15.23 +2.03 (+15.4%) $15.08 $15.28 44 $128.72 (80%) Prob →
ORCL261023P00145000 $145.00 +12.3% 100.0% 98.1% $15.94 +1.79 (+12.7%) $16.03 $16.23 110 $128.77 (80%) Prob →
ORCL261023P00146000 $146.00 +13.1% 100.0% 98.5% $16.98 +1.85 (+12.2%) $16.94 $17.22 62 $128.78 (81%) Prob →
ORCL261023P00147000 $147.00 +13.9% 100.0% 98.5% $18.05 +1.65 (+10.1%) $17.97 $18.27 2 $128.73 (80%) Prob →
ORCL261023P00148000 $148.00 +14.6% 100.0% 98.7% $17.30 -0.75 (-4.2%) $18.90 $19.22 13 $128.78 (81%) Prob →
ORCL261023P00149000 $149.00 +15.4% 100.0% 98.8% $19.87 +1.47 (+8.0%) $19.72 $19.87 14 $129.13 (84%) Prob →
ORCL261023P00150000 $150.00 +16.2% 100.0% 98.8% $20.93 +1.67 (+8.7%) $20.48 $20.97 22 $129.03 (83%) Prob →
ORCL261023P00152500 $152.50 +18.1% 100.0% 99.0% $22.60 +2.20 (+10.8%) $23.05 $23.22 1 $129.28 (86%) Prob →
ORCL261023P00155000 $155.00 +20.1% 100.0% 99.2% $26.07 +1.77 (+7.3%) $25.52 $26.07 22 $128.93 (81%) Prob →
ORCL261023P00157500 $157.50 +22.0% 100.0% 99.4% $27.48 +0.88 (+3.3%) $28.02 $28.68 1 $128.82 (81%) Prob →
ORCL261023P00160000 $160.00 +23.9% 100.0% 99.6% $28.77 -1.52 (-5.0%) $30.23 $31.29 5 $128.71 (80%) Prob →
ORCL261023P00162500 $162.50 +25.9% 100.0% 99.6% $30.54 -2.61 (-7.9%) $32.84 $33.77 3 $128.73 (80%) Prob →
ORCL261023P00165000 $165.00 +27.8% 100.0% 99.8% $36.35 +2.10 (+6.1%) $35.80 $35.82 4 $129.18 (84%) Prob →
ORCL261023P00167500 $167.50 +29.8% 100.0% 99.8% $37.45 +3.60 (+10.6%) $38.23 $38.68 105 $128.82 (81%) Prob →
ORCL261023P00170000 $170.00 +31.7% 100.0% 99.8% $39.89 +0.79 (+2.0%) $40.67 $41.54 106 $128.46 (76%) Prob →
ORCL261023P00172500 $172.50 +33.6% 100.0% 99.8% $42.40 +4.20 (+11.0%) $42.54 $42.98 103 $129.52 (87%) Prob →
ORCL261023P00175000 $175.00 +35.6% 100.0% 99.8% $45.43 +1.78 (+4.1%) $45.95 $46.84 10 $128.16 (72%) Prob →
ORCL261023P00177500 $177.50 +37.5% 100.0% 99.8% $46.21 -1.84 (-3.8%) $48.42 $48.82 3 $128.68 (79%) Prob →
ORCL261023P00180000 $180.00 +39.4% 100.0% 100.0% $49.29 -0.56 (-1.1%) $51.27 $51.67 3 $128.33 (74%) Prob →
ORCL261023P00182500 $182.50 +41.4% 100.0% 100.0% $40.20 +3.05 (+8.2%) $52.57 $53.58 1 $128.92 (81%) Prob →
ORCL261023P00185000 $185.00 +43.3% 100.0% 100.0% $56.37 +13.47 (+31.4%) $56.02 $56.03 3 $128.97 (82%) Prob →
ORCL261023P00187500 $187.50 +45.2% 100.0% 100.0% $55.51 +9.71 (+21.2%) $59.32 $59.77 4 $127.73 (66%) Prob →
ORCL261023P00190000 $190.00 +47.2% 100.0% 100.0% $58.00 +5.70 (+10.9%) $59.82 $61.69 4 $128.31 (74%) Prob →
ORCL261023P00195000 $195.00 +51.1% 100.0% 100.0% $53.20 -7.10 (-11.8%) $66.92 $67.32 4 $127.68 (65%) Prob →
ORCL261023P00200000 $200.00 +54.9% 100.0% 100.0% $62.61 -2.79 (-4.3%) $70.06 $72.04 1 $127.96 (69%) Prob →
ORCL261023P00205000 $205.00 +58.8% 100.0% 100.0% $70.37 +8.72 (+14.1%) $75.45 $75.85 21 $129.15 (84%) Prob →
ORCL261023P00210000 $210.00 +62.7% 100.0% 100.0% $76.14 +9.74 (+14.7%) $81.54 $82.21 24 $127.79 (66%) Prob →
ORCL261023P00215000 $215.00 +66.6% 100.0% 100.0% $74.28 -5.82 (-7.3%) $84.37 $84.86 1 $130.14 (92%) Prob →
ORCL261023P00220000 $220.00 +70.4% 100.0% 100.0% $78.84 -6.36 (-7.5%) $90.27 $93.00 1 $127.00 (58%) Prob →
ORCL261023P00225000 $225.00 +74.3% 100.0% 100.0% $84.38 -5.82 (-6.5%) $97.54 $97.99 1 $127.01 (58%) Prob →
ORCL261023P00230000 $230.00 +78.2% 100.0% 100.0% $88.45 -0.40 (-0.5%) $102.30 $103.11 2 $126.89 (56%) Prob →