OI Structure analyzer · SPXSet

Structure v1.7.5 · Exp 2026-08-19 · Data 2026-08-19 12:59:22 ET · Generated 2026-08-19 09:00:09 ET · All times US Eastern (ET)
Spot
7,691.76
Base / Range
7600 · 7300–7900
Call OI (P1)
87,826
Put OI (P1)
178,765
P/C Ratio
2.035
Strikes P1 / sig / P2
121 / 82 / 264
Expected Move (pre-market) snapshot · observation
Center S* (SPX scale)
7,730.76
ES 7,753.00 · basis(ES−S*) 22.24 · ΔES 39.00
es_gap_on_spx_prev · S* = SPX_prev_close + (ES_last − ES_prev_close)
ATM
7730
Straddle 26.85 · IV 14.3%
ATM IV = avg call/put chain iv at K nearest S* · CBOE options JSON · not VIX
SPX prior close
7,691.76
CBOE prev_close · chain px 7,691.76 · not band center
EM H · static / dynamic
S 99 / D 100 pt
Static @ prior 7,691.76 (σ 71.8) · Dynamic @ S* 7,730.76 (σ 72.1)
c=1.382 · VIX 14.81 (index · not ATM IV) · ATM K7730

Bands

MethodEM±LowerUpperNote
Straddle 26.85 7,703.91 7,757.61 S* ± ATM straddle
ATM IV 69.69 7,661.07 7,800.45 S* × (atm_iv/100) × sqrt(1/252) · t=1/252 · source: chain iv (CBOE JSON), not VIX
Exp 2026-08-19 · 2026-08-19 09:00:09 ET · S* on SPX scale · ES for discovery/basis only · observation only

Week-from-close · Roll 5d (risk)

Week-from-close
—
pre — · Fri · T=
pre ± next-Friday ATM straddle
Roll 5 NYSE days
—
· IV —
risk · not a ticket
Term comparison 0DTE · week · month
Same chain · Spot 7,691.76 · Same CBOE chain · 0DTE / week / month · Wall + Max Pain + ATM IV + 25Δ skew
Term Exp C-Wall P-Wall MaxPain ATM IV 25Δ Skew 25Δ P/C
0DTE / nearest 2026-08-19 7,850 7,600 7,725 16.7% 2.4 16.4/14.0
This week 2026-08-21 7,800 7,500 7,600 12.0% 1.8 12.2/10.4
This month 2026-08-24 7,900 7,600 7,720 9.6% 1.9 10.2/8.3
Term comparison · skew_25d = 25Δ put IV% − call IV% · not the same as P/C · observation only · 2026-08-19 09:00:11 ET
SPX term IV month ATM · IV30 · 0DTE spread
Chain ATM IV · DTE = calendar days ET to expiration · not the VIX strip · 0DTE slope = vol-point spread, not dIV/dT · Spot 7,691.76
Measure IV Algorithm Detail
0DTE ATM 16.66% nearest expiration ATM Exp 2026-08-19 · DTE -52 · K 7690
Month ATM 9.61% monthly OPEX ATM Exp 2026-08-24 · DTE -47 · K 7690
IV30 — linear_t IV1 + w*(IV2-IV1), w=(30-T1)/(T2-T1)
IV30 — variance_t v=IV^2*T interpolated; IV30=sqrt(v30/30)
0DTE − IV30 — spread vs linear_t vol points · IV_0DTE − IV30_linear_t
0DTE − IV30 — spread vs variance_t vol points · IV_0DTE − IV30_variance_t
0DTE − Month +7.05 spread vs month ATM vol points · IV_0DTE − month ATM
0DTE − Week +4.66 spread vs week ATM vol points · IV_0DTE − week ATM
0DTE 25Δ skew +2.40 strike slope put 16.39% / call 13.99% · 25Δ put IV − call IV
Bracket term_compare_fallback · short T— · long T— · VIX — · Display fallback from term_compare (run getspxoi for native iv_term) · 2026-08-19 09:00:11 ET
IV smile target + near window · Call / Put / mid % · exp 2026-08-19 · ATM K7690 16.7% · not a 3D surface

PART 1 — OI Structural Analysis

Influence hint (not a signal): mass near spot weighs more; far large OI matters less unless vol expands the splash. · EM H≈99pt (c=1.382 · σ71.8 · VIX 14.81 · vix) · spot 7,691.76 · near ≤0.5H · mid ≤H · far >H

Primary Walls

Call Wall 7850 · share 8.2% · +158pt · w=0.39 · far
Put Wall 7600 · share 4.2% · -92pt · w=0.52 · mid

Max Pain / OI Pivot

Max Pain 7725 · +33pt · w=0.75 · near
OI Pivot 7850 · +158pt · w=0.39 · far
Max +Net 7850 (+158pt · w=0.39 · far) · Max −Net 7600 (-92pt · w=0.52 · mid)
Expiration OI (full chain) · not on this report — re-run structure after 1.7.19 r1

Pinning / pin range

Pin center
7,725.0
Pin range
7,600.0 – 7,850.0
Confidence
medium · score 50
Near OI share
45.2%
Magnet — · Pain 7725 · peak 7725 · OI-mass 7695.8 · Pivot 7850 · ZG 7430 · walls P— / C— · spread 154.2 · GEX pin-support no
anchors dispersed (spread 154.2) · high near-OI share 45.2% · GEX negative (trend bias — pin less reliable)
near-spot OI band + Max Pain / OI Pivot / OI-mass center agreement; Zero Gamma context only (not sole anchor)

OI Clusters (hint)

≥4 consecutive strikes · side OI ≥ max(1.5×median, threshold) — buffer zones, not primary walls. List notes: C-BAND / P-BAND.
Call: none
Put: none

OI Chain

Part 1 · click Strike / Call OI / Put OI / Net OI to sort (Note fixed)
Default: OI ≥ 1000 · total 121 / significant 82 / low OI 39 Significant ★★ High Low OI (when expanded)
Strike ↕ Call OI ↕ Put OI ↕ Net OI ↕ Note
7,300.0 9 880 -871
7,305.0 0 452 -452
7,310.0 1 222 -221
7,315.0 0 366 -366
7,320.0 5 468 -463
7,325.0 1 561 -560
7,330.0 12 916 -904
7,335.0 2 32 -30
7,340.0 37 240 -203
7,345.0 2 46 -44
7,350.0 30 283 -253
7,355.0 4 176 -172
7,360.0 12 236 -224
7,365.0 12 198 -186
7,370.0 21 326 -305
7,375.0 35 343 -308
7,380.0 10 199 -189
7,385.0 13 128 -115
7,390.0 12 400 -388
7,395.0 0 250 -250
7,400.0 133 3,178 -3045
7,405.0 4 412 -408
7,410.0 26 234 -208
7,415.0 5 2,694 -2689
7,420.0 47 644 -597
7,425.0 41 5,356 -5315
7,430.0 12 216 -204
7,435.0 38 4,669 -4631
7,440.0 33 407 -374
7,445.0 12 229 -217
7,450.0 87 1,979 -1892 P-BAND
7,455.0 29 4,825 -4796 P-BAND
7,460.0 67 3,502 -3435 P-BAND
7,465.0 14 3,268 -3254 P-BAND
7,470.0 57 242 -185
7,475.0 97 2,155 -2058
7,480.0 97 2,604 -2507
7,485.0 2 513 -511
7,490.0 40 872 -832
7,495.0 12 394 -382
7,500.0 120 3,559 -3439
7,505.0 14 1,441 -1427
7,510.0 71 1,117 -1046
7,515.0 3 4,183 -4180
7,520.0 42 1,138 -1096
7,525.0 22 6,309 -6287 ② 2nd PUT
7,530.0 565 1,232 -667
7,535.0 85 4,837 -4752
7,540.0 64 707 -643
7,545.0 12 5,928 -5916 ③ 3rd PUT P-BAND
7,550.0 197 2,855 -2658 P-BAND
7,555.0 535 2,163 -1628 P-BAND
7,560.0 128 1,690 -1562 P-BAND
7,565.0 38 5,082 -5044 P-BAND
7,570.0 68 2,003 -1935 P-BAND
7,575.0 98 3,851 -3753 P-BAND
7,580.0 61 2,068 -2007 P-BAND
7,585.0 5 1,511 -1506 P-BAND
7,590.0 70 1,637 -1567 P-BAND
7,595.0 27 2,031 -2004 P-BAND
7,600.0 1,049 7,587 -6538 ① MAX PUT ▼ MAX -NET P-BAND
7,605.0 49 1,392 -1343 P-BAND
7,610.0 110 1,216 -1106
7,615.0 29 1,484 -1455 P-BAND
7,620.0 69 4,541 -4472 P-BAND
7,625.0 162 2,790 -2628 P-BAND
7,630.0 164 4,738 -4574 P-BAND
7,635.0 105 889 -784
7,640.0 182 1,353 -1171
7,645.0 30 2,071 -2041
7,650.0 450 2,867 -2417
7,655.0 113 1,219 -1106
7,660.0 117 1,880 -1763 P-BAND
7,665.0 53 1,546 -1493 P-BAND
7,670.0 190 1,512 -1322 P-BAND
7,675.0 332 2,041 -1709 P-BAND
7,680.0 221 1,827 -1606 P-BAND
7,685.0 273 1,495 -1222 P-BAND
7,690.0 314 1,819 -1505 P-BAND
7,695.0 741 2,397 -1656 P-BAND
7,700.0 2,637 4,400 -1763 C-BAND P-BAND
7,705.0 1,039 1,097 -58 C-BAND
7,710.0 1,748 646 +1102 C-BAND
7,715.0 1,618 537 +1081 C-BAND
7,720.0 951 5,428 -4477
7,725.0 5,879 4,271 +1608 ② 2nd CALL C-BAND
7,730.0 2,237 816 +1421 C-BAND
7,735.0 1,976 3,316 -1340 C-BAND
7,740.0 1,717 604 +1113 C-BAND
7,745.0 1,561 1,535 +26 C-BAND
7,750.0 4,447 3,907 +540 ③ 3rd CALL C-BAND
7,755.0 1,318 857 +461 C-BAND
7,760.0 2,144 487 +1657 C-BAND
7,765.0 1,529 486 +1043 C-BAND
7,770.0 2,699 335 +2364 C-BAND
7,775.0 4,151 408 +3743 C-BAND
7,780.0 1,895 436 +1459 C-BAND
7,785.0 1,053 293 +760 C-BAND
7,790.0 1,461 216 +1245 C-BAND
7,795.0 1,420 128 +1292 C-BAND
7,800.0 3,548 529 +3019 C-BAND
7,805.0 3,066 117 +2949 C-BAND
7,810.0 632 124 +508
7,815.0 767 95 +672
7,820.0 746 65 +681
7,825.0 1,104 40 +1064
7,830.0 1,446 23 +1423
7,835.0 2,383 32 +2351
7,840.0 671 26 +645
7,845.0 544 20 +524
7,850.0 7,215 56 +7159 ① MAX CALL ▲ MAX +NET C-BAND
7,855.0 1,485 11 +1474 C-BAND
7,860.0 1,178 255 +923 C-BAND
7,865.0 1,143 12 +1131 C-BAND
7,870.0 1,644 10 +1634 C-BAND
7,875.0 2,227 5 +2222 C-BAND
7,880.0 2,116 4 +2112 C-BAND
7,885.0 1,818 2 +1816 C-BAND
7,890.0 724 2 +722
7,895.0 471 4 +467
7,900.0 1,369 9 +1360
2026-08-19 SPX O 7,716.74 · H 7,743.93 · L 7,700.07 · C 7,707.98 prior C — VIX 14.89 prior — OHLC Ammo · chain not patched · SPX:ammo_eod · VIX:ammo_eod

PART 1 ADDITION — Options OI Matrix

Hide K Default: Call or Put > 1000 · OI/1000 · center group = 7600 Net+ Net− ★★ rank
Options OI
k 7400 7500 7600 7700 7800
C P C P C P C P C P
00 0.1 3.1 0.1 3.5 1.0 7.5 2.6 4.4 3.5 0.5
05 0.0 0.4 0.0 1.4 0.0 1.3 1.0 1.0 3.0 0.1
10 0.0 0.2 0.0 1.1 0.1 1.2 1.7 0.6 0.6 0.1
15 0.0 2.6 0.0 4.1 0.0 1.4 1.6 0.5 0.7 0.0
20 0.0 0.6 0.0 1.1 0.0 4.5 0.9 5.4 0.7 0.0
25 0.0 5.3 0.0 6.3 0.1 2.7 5.8 4.2 1.1 0.0
30 0.0 0.2 0.5 1.2 0.1 4.7 2.2 0.8 1.4 0.0
35 0.0 4.6 0.0 4.8 0.1 0.8 1.9 3.3 2.3 0.0
40 0.0 0.4 0.0 0.7 0.1 1.3 1.7 0.6 0.6 0.0
45 0.0 0.2 0.0 5.9 0.0 2.0 1.5 1.5 0.5 0.0
50 0.0 1.9 0.1 2.8 0.4 2.8 4.4 3.9 7.2 0.0
55 0.0 4.8 0.5 2.1 0.1 1.2 1.3 0.8 1.4 0.0
60 0.0 3.5 0.1 1.6 0.1 1.8 2.1 0.4 1.1 0.2
65 0.0 3.2 0.0 5.0 0.0 1.5 1.5 0.4 1.1 0.0
70 0.0 0.2 0.0 2.0 0.1 1.5 2.6 0.3 1.6 0.0
75 0.0 2.1 0.0 3.8 0.3 2.0 4.1 0.4 2.2 0.0
80 0.0 2.6 0.0 2.0 0.2 1.8 1.8 0.4 2.1 0.0
85 0.0 0.5 0.0 1.5 0.2 1.4 1.0 0.2 1.8 0.0
90 0.0 0.8 0.0 1.6 0.3 1.8 1.4 0.2 0.7 0.0
95 0.0 0.3 0.0 2.0 0.7 2.3 1.4 0.1 0.4 0.0

OI Net Matrix (C−P by strike · heat like Volume)

Hide K Cell = Call OI − Put OI (K) · green = net call · red = net put · default deeper = larger |net| · near-base = |net|×w(|K−base|), H=99pt (c=1.382·σ71.8 · VIX 14.81 · vix) Net+ Net−
OI Net (C−P)
k 7400 7500 7600 7700 7800
00 −3.0 −3.4 −6.5 −1.7 +3.0
05 −0.4 −1.4 −1.3 −0.0 +2.9
10 −0.2 −1.0 −1.1 +1.1 +0.5
15 −2.6 −4.1 −1.4 +1.0 +0.6
20 −0.5 −1.0 −4.4 −4.4 +0.6
25 −5.3 −6.2 −2.6 +1.6 +1.0
30 −0.2 −0.6 −4.5 +1.4 +1.4
35 −4.6 −4.7 −0.7 −1.3 +2.3
40 −0.3 −0.6 −1.1 +1.1 +0.6
45 −0.2 −5.9 −2.0 +0.0 +0.5
50 −1.8 −2.6 −2.4 +0.5 +7.1
55 −4.7 −1.6 −1.1 +0.4 +1.4
60 −3.4 −1.5 −1.7 +1.6 +0.9
65 −3.2 −5.0 −1.4 +1.0 +1.1
70 −0.1 −1.9 −1.3 +2.3 +1.6
75 −2.0 −3.7 −1.7 +3.7 +2.2
80 −2.5 −2.0 −1.6 +1.4 +2.1
85 −0.5 −1.5 −1.2 +0.7 +1.8
90 −0.8 −1.5 −1.5 +1.2 +0.7
95 −0.3 −2.0 −1.6 +1.2 +0.4

OI Total Matrix (C+P by strike · same heat modes)

Hide K Cell = Call OI + Put OI (K) · amber heat · deeper = larger total · independent Near-base · same EM H=99pt · base 7600
OI Total (C+P)
k 7400 7500 7600 7700 7800
00 3.3 3.6 8.6 7.0 4.0
05 0.4 1.4 1.4 2.1 3.1
10 0.2 1.1 1.3 2.3 0.7
15 2.6 4.1 1.5 2.1 0.8
20 0.6 1.1 4.6 6.3 0.8
25 5.3 6.3 2.9 10.1 1.1
30 0.2 1.7 4.9 3.0 1.4
35 4.7 4.9 0.9 5.2 2.4
40 0.4 0.7 1.5 2.3 0.6
45 0.2 5.9 2.1 3.0 0.5
50 2.0 3.0 3.3 8.3 7.2
55 4.8 2.6 1.3 2.1 1.4
60 3.5 1.8 1.9 2.6 1.4
65 3.2 5.1 1.5 2.0 1.1
70 0.2 2.0 1.7 3.0 1.6
75 2.2 3.9 2.3 4.5 2.2
80 2.7 2.1 2.0 2.3 2.1
85 0.5 1.5 1.7 1.3 1.8
90 0.9 1.7 2.1 1.6 0.7
95 0.4 2.0 3.1 1.5 0.4
OI Tape C/P in K · this pull · next listed expirations · this week · session + next NYSE days
Strikes Hide K Cells = Call / Put · unit K · session-day column = base, no fill · green / red = other columns vs that C+P · empty = ·
OI Tape
k 08-12 08-13 08-14 08-17 08-18 08-19 08-20 08-21 08-24 08-25
7300 ·/· ·/· ·/· ·/· ·/· ·/0.8 ·/3.8 6.1/29.5 ·/1.2 ·/0.9
7305 ·/· ·/· ·/· ·/· ·/· ·/0.4 ·/0.1 ·/0.4 ·/· ·/0.6
7310 ·/· ·/· ·/· ·/· ·/· ·/0.2 ·/0.3 0.3/1.0 ·/2.0 ·/0.2
7315 ·/· ·/· ·/· ·/· ·/· ·/0.3 ·/0.1 ·/0.7 ·/· ·/·
7320 ·/· ·/· ·/· ·/· ·/· ·/0.4 ·/0.3 0.1/0.9 ·/0.1 ·/0.3
7325 ·/· ·/· ·/· ·/· ·/· ·/0.5 ·/0.1 1.2/4.8 ·/0.3 ·/0.3
7330 ·/· ·/· ·/· ·/· ·/· ·/0.9 ·/0.1 0.1/1.2 ·/0.1 ·/0.2
7335 ·/· ·/· ·/· ·/· ·/· ·/· ·/0.3 ·/1.5 ·/· ·/·
7340 ·/· ·/· ·/· ·/· ·/· ·/0.2 ·/· 0.1/1.5 ·/0.2 ·/0.1
7345 ·/· ·/· ·/· ·/· ·/· ·/· ·/· 0.1/0.9 ·/3.5 ·/0.1
7350 ·/· ·/· ·/· ·/· ·/· ·/0.2 ·/0.3 5.0/16.0 ·/3.4 ·/1.0
7355 ·/· ·/· ·/· ·/· ·/· ·/0.1 ·/· 0.2/0.7 ·/0.2 ·/0.1
7360 ·/· ·/· ·/· ·/· ·/· ·/0.2 ·/0.3 0.2/1.2 ·/0.1 ·/0.6
7365 ·/· ·/· ·/· ·/· ·/· ·/0.1 ·/0.6 ·/2.5 ·/6.1 ·/1.1
7370 ·/· ·/· ·/· ·/· ·/· ·/0.3 ·/0.1 0.2/1.6 0.2/0.2 ·/0.1
7375 ·/· ·/· ·/· ·/· ·/· ·/0.3 ·/0.6 2.4/11.4 0.1/7.7 ·/10.1
7380 ·/· ·/· ·/· ·/· ·/· ·/0.1 ·/0.1 0.3/4.1 ·/3.1 ·/0.2
7385 ·/· ·/· ·/· ·/· ·/· ·/0.1 ·/· 0.1/3.7 ·/0.3 ·/5.2
7390 ·/· ·/· ·/· ·/· ·/· ·/0.4 ·/0.2 0.4/1.0 ·/0.5 ·/0.2
7395 ·/· ·/· ·/· ·/· ·/· ·/0.2 ·/0.1 0.3/1.2 ·/0.1 ·/0.2
7400 0.6/3.7 0.2/1.0 0.5/3.6 0.1/1.1 ·/0.8 0.1/3.1 ·/0.6 10.1/23.2 0.1/1.5 ·/5.3
7405 ·/0.2 ·/· ·/0.6 ·/0.1 ·/· ·/0.4 ·/0.1 0.3/1.3 ·/0.6 ·/·
7410 ·/0.4 ·/0.2 ·/0.7 ·/0.6 ·/0.2 ·/0.2 ·/0.1 0.3/2.6 ·/1.9 ·/0.3
7415 ·/0.2 ·/0.1 ·/0.4 ·/0.2 ·/1.5 ·/2.6 ·/0.1 0.1/1.5 ·/0.1 ·/0.2
7420 ·/0.1 ·/0.2 0.1/0.5 ·/0.4 ·/0.2 ·/0.6 ·/0.3 0.7/0.9 ·/0.3 ·/0.3
7425 ·/1.8 ·/0.5 0.1/2.4 0.2/1.4 ·/5.2 ·/5.3 ·/0.1 1.7/3.8 0.1/2.0 ·/0.7
7430 ·/0.4 ·/0.3 0.1/0.9 ·/0.2 ·/0.1 ·/0.2 ·/0.3 0.7/1.9 ·/0.4 ·/0.4
7435 ·/2.1 ·/0.4 ·/2.1 ·/· ·/0.1 ·/4.6 ·/0.3 0.2/2.8 ·/3.5 ·/0.3
7440 ·/0.5 ·/2.9 0.1/0.6 ·/0.4 ·/0.3 ·/0.4 ·/1.6 0.4/1.7 ·/0.5 ·/0.6
7445 ·/0.2 ·/0.3 0.5/1.1 ·/0.4 ·/2.3 ·/0.2 ·/0.1 0.2/1.7 ·/0.2 ·/0.4
7450 0.1/5.5 ·/1.8 1.0/3.3 0.1/1.6 0.1/0.4 ·/1.9 0.2/3.5 10.0/18.1 ·/2.6 ·/1.0
7455 ·/0.5 ·/0.2 ·/0.5 ·/0.6 ·/0.1 ·/4.8 ·/0.1 0.3/5.5 ·/0.6 ·/0.1
7460 ·/6.6 0.2/0.3 0.2/0.6 ·/0.5 ·/0.4 ·/3.5 ·/3.6 0.7/4.2 ·/0.4 ·/0.8
7465 ·/1.7 ·/0.6 ·/0.8 ·/0.2 ·/0.2 ·/3.2 ·/3.3 0.3/2.3 ·/7.2 ·/4.8
7470 ·/0.5 ·/0.2 0.1/3.2 ·/0.3 ·/0.2 ·/0.2 ·/0.7 0.6/4.5 0.1/0.6 ·/0.7
7475 1.8/4.1 0.1/9.6 0.1/0.7 ·/4.3 ·/1.0 ·/2.1 ·/0.5 4.7/13.4 0.1/11.5 ·/7.7
7480 0.1/0.3 ·/0.5 0.2/2.0 0.1/0.9 ·/0.5 ·/2.6 ·/2.9 7.1/3.4 ·/0.4 ·/1.6
7485 ·/1.7 ·/0.2 0.1/0.5 ·/0.1 ·/0.2 ·/0.5 ·/7.7 0.3/3.8 ·/0.7 ·/2.4
7490 0.1/0.3 ·/0.2 0.1/0.9 ·/0.5 ·/0.1 ·/0.8 ·/0.4 0.5/2.6 ·/0.7 ·/0.8
7495 ·/1.2 ·/0.2 0.1/0.5 ·/1.6 ·/0.3 ·/0.3 ·/4.2 0.5/4.3 ·/0.4 ·/1.5
7500 1.9/3.4 0.7/8.4 2.4/8.5 1.1/5.8 0.1/0.8 0.1/3.5 ·/3.8 40.6/52.4 0.2/3.2 0.2/7.2
7505 ·/0.4 ·/0.4 0.1/2.2 ·/0.3 ·/· ·/1.4 ·/0.6 0.4/2.0 ·/0.7 ·/0.6
7510 ·/0.4 0.3/2.9 0.3/1.2 0.1/0.7 ·/2.4 ·/1.1 ·/0.7 1.0/3.8 0.1/1.3 ·/0.5
7515 ·/0.4 ·/0.4 0.3/1.5 ·/0.8 ·/0.2 ·/4.1 ·/0.5 0.4/15.9 ·/1.2 ·/1.1
7520 ·/3.4 ·/0.4 0.5/2.2 0.1/0.8 ·/0.4 ·/1.1 ·/1.0 1.6/16.5 0.1/1.1 0.1/0.7
7525 0.1/3.0 0.6/0.6 0.9/14.5 1.1/5.5 ·/2.6 ·/6.3 ·/0.6 3.6/9.1 0.2/2.1 ·/2.5
7530 ·/2.7 3.1/0.5 0.3/4.2 0.1/0.6 ·/0.6 0.5/1.2 0.1/0.6 1.0/3.2 ·/0.8 ·/1.0
7535 ·/2.1 ·/0.4 0.5/2.2 ·/6.3 ·/10.2 ·/4.8 ·/0.7 1.3/3.0 ·/0.6 ·/0.5
7540 1.0/4.6 0.3/0.4 0.9/1.5 0.1/1.9 ·/2.2 ·/0.7 ·/2.0 1.4/3.3 0.6/1.4 ·/1.5
7545 0.1/0.5 ·/0.5 ·/1.9 ·/11.7 ·/5.6 ·/5.9 ·/1.5 1.6/3.8 ·/1.8 ·/1.1
7550 0.1/6.7 2.8/5.3 4.2/7.4 0.8/9.6 0.3/3.8 0.1/2.8 0.1/3.7 19.3/25.1 0.1/2.5 0.3/3.7
7555 0.3/1.3 0.5/0.7 0.1/0.5 ·/0.6 ·/0.4 0.5/2.1 ·/2.3 2.1/3.1 ·/0.8 ·/1.0
7560 0.1/6.3 0.3/2.1 0.3/0.8 0.1/0.7 0.1/0.1 0.1/1.6 ·/1.6 1.5/3.9 0.1/1.4 0.1/1.0
7565 0.2/2.6 0.1/0.2 0.1/2.7 ·/0.3 ·/0.6 ·/5.0 ·/4.0 0.7/2.5 ·/0.9 ·/1.5
7570 0.2/0.7 0.1/0.5 0.8/1.6 0.1/0.3 ·/0.5 ·/2.0 ·/4.2 1.1/2.2 0.1/0.9 0.1/2.5
7575 0.9/7.5 0.6/10.1 2.1/1.8 0.2/0.9 ·/2.3 ·/3.8 0.2/1.1 4.9/5.3 0.3/2.9 0.3/1.9
7580 0.2/1.2 0.2/1.8 2.0/2.3 0.1/0.5 ·/0.4 ·/2.0 0.1/0.7 1.7/3.0 0.1/2.8 ·/1.3
7585 ·/1.3 ·/0.6 0.6/0.9 ·/1.4 ·/0.7 ·/1.5 ·/10.6 1.0/2.7 ·/1.4 ·/1.4
7590 0.3/1.3 ·/1.3 1.0/3.2 0.1/0.7 ·/3.0 ·/1.6 ·/1.3 0.8/9.4 ·/1.9 ·/1.3
7595 ·/2.6 ·/0.8 0.5/1.4 ·/1.1 ·/1.2 ·/2.0 ·/1.4 1.7/3.5 ·/1.1 0.2/1.3
7600 0.5/5.2 0.5/10.9 3.1/5.8 0.9/4.0 0.3/1.9 1.0/7.5 0.2/3.1 23.8/26.5 0.4/5.6 0.8/4.2
7605 ·/0.7 ·/0.4 0.2/1.5 ·/0.6 ·/0.7 ·/1.3 0.1/1.5 0.4/2.4 ·/0.8 0.1/0.9
7610 0.3/2.8 0.3/1.0 0.7/2.6 0.1/1.2 ·/1.1 0.1/1.2 ·/1.6 1.6/3.3 0.1/2.2 0.1/2.2
7615 0.1/2.6 ·/1.3 0.6/1.8 ·/1.0 ·/0.8 ·/1.4 ·/1.0 0.6/2.0 ·/2.1 ·/0.8
7620 0.4/1.7 0.3/1.3 0.8/4.6 0.3/1.1 ·/0.4 ·/4.5 ·/3.4 1.1/3.7 0.1/2.4 0.2/1.7
7625 0.3/2.9 0.1/3.1 1.3/13.8 0.4/5.4 ·/2.2 0.1/2.7 0.1/2.8 3.5/5.7 0.7/1.2 0.6/1.7
7630 0.3/3.0 0.1/1.2 0.3/1.4 ·/1.8 ·/1.4 0.1/4.7 0.1/1.6 1.3/3.7 0.2/4.1 0.1/1.3
7635 0.1/1.1 ·/0.9 0.2/3.7 ·/6.9 ·/15.9 0.1/0.8 ·/2.3 2.2/2.7 ·/1.1 0.1/0.7
7640 0.1/2.3 0.2/1.5 0.9/2.7 0.3/2.0 ·/0.7 0.1/1.3 0.1/1.9 1.9/7.7 0.2/1.9 0.4/1.2
7645 ·/3.2 ·/1.0 0.3/1.1 ·/2.3 ·/0.5 ·/2.0 ·/4.2 1.1/2.7 0.3/1.9 0.3/0.8
7650 1.2/7.4 0.3/3.9 2.2/8.1 0.5/9.3 0.1/5.4 0.4/2.8 0.6/4.7 11.1/14.8 0.8/2.1 1.5/2.6
7655 0.1/0.9 ·/1.5 0.3/1.4 0.2/1.0 ·/1.4 0.1/1.2 ·/1.2 1.4/2.1 0.3/0.8 1.1/1.7
7660 0.3/1.6 0.4/2.4 0.3/1.4 0.2/1.5 0.1/1.8 0.1/1.8 0.3/2.4 2.9/2.1 0.5/1.2 1.1/1.4
7665 0.1/1.0 ·/1.3 ·/3.4 ·/1.2 ·/1.3 ·/1.5 0.1/1.6 1.9/3.3 0.3/0.9 3.2/1.2
7670 0.3/2.7 0.3/2.2 0.4/1.6 0.1/2.0 0.1/1.5 0.1/1.5 0.1/1.6 2.9/2.9 0.6/1.4 1.4/0.7
7675 0.9/3.9 0.6/2.9 1.2/5.2 0.8/2.2 0.1/2.1 0.3/2.0 0.2/2.9 5.1/4.9 1.4/1.3 1.2/1.0
7680 0.1/1.3 0.4/1.4 0.6/1.9 ·/1.5 0.1/1.6 0.2/1.8 0.1/1.6 3.2/2.9 1.5/1.1 1.8/0.4
7685 ·/1.4 ·/1.6 0.1/4.1 0.3/2.2 ·/1.6 0.2/1.4 0.1/1.4 3.5/4.6 0.7/0.7 1.8/0.2
7690 0.2/2.8 0.2/1.6 0.4/1.9 0.1/1.0 0.1/1.5 0.3/1.8 0.2/1.5 3.3/2.0 0.7/1.3 4.6/0.7
7695 0.1/1.2 0.2/1.8 0.1/2.9 0.1/0.9 ·/1.6 0.7/2.3 0.4/1.9 2.6/2.7 0.6/0.3 1.3/0.2
7700 1.1/4.2 0.9/4.2 2.9/6.7 1.0/6.3 0.5/3.9 2.6/4.4 1.4/3.3 28.3/21.5 4.3/5.2 3.5/1.0
7705 0.1/0.7 ·/1.5 0.1/1.1 ·/1.3 0.1/1.1 1.0/1.0 0.5/1.3 2.2/1.8 1.6/0.3 1.8/0.2
7710 0.3/1.2 0.3/2.0 0.9/2.3 0.2/1.5 0.1/2.4 1.7/0.6 0.9/1.2 3.1/2.2 5.2/0.3 2.5/0.2
7715 0.2/0.7 0.2/2.8 0.2/2.1 ·/0.9 0.1/1.6 1.6/0.5 0.9/1.1 4.9/2.0 1.7/0.3 2.1/0.1
7720 0.5/1.0 0.2/1.2 0.7/1.6 0.2/1.9 0.1/1.9 0.9/5.4 0.7/0.8 4.6/2.0 2.3/0.4 3.0/0.1
7725 1.6/2.3 0.6/2.8 2.6/4.5 2.6/2.3 0.3/2.9 5.8/4.2 1.4/0.9 7.4/5.5 1.8/0.7 3.6/0.6
7730 1.0/1.6 0.3/1.3 0.8/1.8 0.2/2.1 0.6/1.8 2.2/0.8 1.1/0.7 4.5/1.4 2.4/0.3 2.7/0.3
7735 1.0/0.8 0.3/1.0 0.5/1.9 0.1/1.2 0.3/1.3 1.9/3.3 1.0/0.6 4.2/1.1 1.5/0.2 2.2/·
7740 0.9/0.6 0.7/0.9 0.9/2.1 0.3/5.5 0.4/1.5 1.7/0.6 2.4/0.7 4.5/2.4 2.2/0.9 1.3/0.2
7745 1.0/0.6 0.8/1.1 2.2/3.2 0.2/1.5 0.6/1.2 1.5/1.5 2.0/0.3 2.7/1.3 1.9/0.1 0.9/0.1
7750 1.9/1.2 3.1/2.0 4.7/6.2 1.1/3.8 1.4/3.3 4.4/3.9 2.5/2.0 22.9/14.0 6.6/1.8 2.7/0.7
7755 1.1/0.6 1.1/0.5 1.8/1.2 0.6/5.4 1.3/1.1 1.3/0.8 4.0/0.5 2.5/0.9 2.9/0.2 0.8/·
7760 1.7/0.9 1.7/0.4 1.4/2.7 0.4/2.0 1.1/1.3 2.1/0.4 5.0/0.2 5.0/1.0 1.4/0.3 1.0/0.8
7765 1.1/0.4 0.8/0.3 0.5/1.6 0.3/0.8 0.6/0.6 1.5/0.4 1.6/0.2 2.2/0.7 1.2/0.1 0.8/·
7770 1.3/0.3 1.0/0.2 1.0/1.9 0.8/1.0 1.3/1.3 2.6/0.3 3.0/0.3 4.9/2.2 1.3/0.2 0.7/0.1
7775 2.5/0.3 1.6/0.3 2.8/2.8 1.6/3.4 2.0/1.9 4.1/0.4 3.5/0.2 13.9/3.3 1.3/0.1 5.8/0.1
7780 3.3/0.2 2.6/0.1 1.7/1.5 1.4/1.2 2.3/0.7 1.8/0.4 2.1/0.3 5.4/1.5 2.0/0.2 1.5/·
7785 2.2/0.1 1.6/· 1.0/0.6 2.0/1.2 2.1/0.3 1.0/0.2 2.1/0.1 4.2/0.8 1.8/0.1 8.3/·
7790 1.3/0.2 2.0/0.1 6.3/1.5 1.2/0.8 1.6/0.3 1.4/0.2 1.2/0.2 4.0/0.7 2.5/0.1 0.7/·
7795 1.0/· 0.8/· 1.6/1.0 1.2/0.5 2.0/0.2 1.4/0.1 0.8/0.2 2.1/0.3 9.6/0.1 1.0/·
7800 6.2/0.5 6.3/0.5 8.3/3.4 3.9/1.8 3.3/1.4 3.5/0.5 3.3/0.2 30.2/16.3 3.8/0.6 1.3/0.2
7805 1.0/· 2.8/· 1.7/0.8 2.2/0.4 2.8/0.2 3.0/0.1 3.9/0.2 2.7/0.4 0.8/0.1 0.5/·
7810 7.1/· 1.8/· 7.6/0.4 2.7/0.7 2.1/0.2 0.6/0.1 1.7/· 6.7/0.4 2.7/0.1 0.3/·
7815 1.0/· 1.1/· 1.6/0.3 0.9/0.1 1.5/· 0.7/· 0.6/· 7.2/0.2 0.9/· 0.6/·
7820 4.2/· 2.9/· 3.4/0.3 1.6/0.1 1.9/0.1 0.7/· 0.9/· 4.1/0.4 0.9/· 0.3/·
7825 2.2/· 1.9/0.1 6.9/0.6 2.9/0.1 2.4/0.1 1.1/· 4.2/· 9.4/0.2 6.2/· 1.6/·
7830 1.2/· 2.8/· 5.0/0.1 1.4/· 2.7/0.1 1.4/· 1.2/· 2.7/0.2 0.6/· 1.6/·
7835 0.8/· 0.7/· 2.6/0.1 1.2/· 1.1/· 2.3/· 7.2/· 1.9/· 2.5/· 0.5/·
7840 2.5/· 1.0/· 2.9/· 1.4/· 1.5/0.1 0.6/· 1.1/· 1.6/0.1 0.8/· 1.3/·
7845 0.8/· 0.6/· 2.3/· 1.4/· 1.6/· 0.5/· 5.5/· 1.9/0.2 0.5/· 4.9/·
7850 5.6/0.1 1.7/· 5.8/0.1 10.1/· 2.8/0.1 7.2/· 3.0/· 8.4/0.3 2.4/0.1 1.0/·
7855 1.3/· 0.7/· 2.5/· 2.6/· 1.2/· 1.4/· 1.2/· 1.0/0.1 0.4/· 1.4/·
7860 1.3/· 0.8/· 3.5/0.2 1.8/0.2 0.9/0.2 1.1/0.2 1.8/0.3 3.0/· 1.4/· 5.4/·
7865 0.9/· 0.7/· 2.9/· 1.2/· 0.9/· 1.1/· 0.2/· 1.5/· 0.7/· 0.6/·
7870 0.9/· 0.9/· 3.2/· 1.1/· 1.2/· 1.6/· 0.4/· 3.1/· 1.1/· 3.4/·
7875 1.4/0.2 4.4/0.2 2.9/· 6.3/· 2.9/· 2.2/· 0.6/· 10.1/0.1 0.6/· 0.4/·
7880 1.1/· 1.0/· 3.6/· 2.4/· 1.7/· 2.1/· 0.4/· 6.8/· 0.3/· 1.2/·
7885 0.8/· 6.7/· 5.9/· 1.5/· 0.8/· 1.8/· 1.9/· 0.8/· 0.3/· 0.2/·
7890 5.6/· 0.5/· 6.3/· 4.1/· 2.9/· 0.7/· 0.8/· 4.3/· 2.3/· 1.5/·
7895 0.8/· 0.6/· 1.3/· 1.4/· 3.0/· 0.4/· 0.8/· 1.8/· 9.3/· 0.3/·
7900 5.9/· 8.8/· 12.7/0.1 10.5/· 7.7/· 1.3/· 5.6/· 18.8/0.4 2.8/· 1.1/·
7905 0.4/· 1.0/· 0.9/· 3.0/· 1.1/· ·/· ·/· ·/· ·/· ·/·
7910 3.2/· 0.7/· 2.2/· 1.6/· 1.7/· ·/· ·/· ·/· ·/· ·/·
7915 6.4/· 2.2/· 1.8/· 0.9/· 1.3/· ·/· ·/· ·/· ·/· ·/·
7920 4.5/· 4.4/· 1.6/· 1.0/· 0.5/· ·/· ·/· ·/· ·/· ·/·
7925 7.5/· 6.7/· 4.5/· 7.6/· 0.9/· ·/· ·/· ·/· ·/· ·/·
7930 0.5/· 1.3/· 2.3/· 1.8/· 0.4/· ·/· ·/· ·/· ·/· ·/·
7935 0.3/· 0.7/· 2.5/· 0.6/· 0.1/· ·/· ·/· ·/· ·/· ·/·
7940 0.3/· 1.0/· 4.1/· 4.0/· 0.6/· ·/· ·/· ·/· ·/· ·/·
7945 0.4/· 0.4/· 1.9/· 0.2/· 0.3/· ·/· ·/· ·/· ·/· ·/·
7950 7.5/· 3.0/· 6.3/0.1 9.5/· 1.2/· ·/· ·/· ·/· ·/· ·/·
7955 0.3/· 0.2/· 0.4/· 0.5/· 0.2/· ·/· ·/· ·/· ·/· ·/·
7960 0.6/· 0.5/· 2.0/· 0.6/· 1.2/· ·/· ·/· ·/· ·/· ·/·
7965 0.4/· 0.4/· 0.3/· 0.4/· 0.4/· ·/· ·/· ·/· ·/· ·/·
7970 3.1/· 0.8/· 1.2/· 0.6/· 0.6/· ·/· ·/· ·/· ·/· ·/·
7975 0.6/· 6.6/· 4.3/· 0.8/· 1.8/· ·/· ·/· ·/· ·/· ·/·
7980 0.2/· 0.1/· 3.3/· 0.6/· 0.7/· ·/· ·/· ·/· ·/· ·/·
7985 0.5/· 0.1/· 1.7/· ·/· 0.8/· ·/· ·/· ·/· ·/· ·/·
7990 1.7/· 0.9/· 0.8/· 0.4/· 7.8/· ·/· ·/· ·/· ·/· ·/·
7995 ·/· ·/· ·/· ·/· ·/· ·/· ·/· ·/· ·/· ·/·
8000 8.1/· 7.1/· 9.6/2.7 4.4/· 2.9/· ·/· ·/· ·/· ·/· ·/·
ΔOI by strike vs prior structure session 2026-08-18 · grouped bars Call / Put ΔOI (K) · matrix window · zero line · expiration differs (prior 2026-08-18 vs 2026-08-19) — treat with care

PART 2 — GEX (full expiration chain)

Net GEX -4.78B · NEGATIVE gamma (trend/amplify bias)
GEX Call Wall 7725
GEX Put Wall 7690
Zero Gamma (Flip-A) 7430 · cum Net_GEX
Zero Gamma (Flip-B) n/a · no zero cross / needs re-run
Call strength 7.44× VERY STRONG · Put strength 4.84× VERY STRONG
GEX profile target-exp full chain · series cropped to Part1 window · Flip-A = cum Net_GEX · unit B (proxy)
No GEX profile on this report — re-run structure after 1.7.19 r1

Copy-ready Key Levels

Spot 7691.76 | PutWall 7600 | CallWall 7850 | MaxPain 7725 | OIPivot 7850 | GEX-Put 7690 | GEX-Call 7725 | ZeroG 7430