VolSignalsINDEX VOL & POSITIONING INTELLIGENCE · FREE EDITION
VS RESEARCH HIGHLIGHT · LARGE NEAR-DATED CALL BUYS · JAN 2 TO SEP 3, 2026

TWENTY
CALL BLOCKS

Every large near-dated call buy of 2026, marked from the print to settlement.
Firm-origin blocks of 3,000 lots or more, expiry inside 10 days, bought outright: 20 of them since January 2, $30.0M of premium on the first prints. Each one is marked at the bid from the print through settlement, against the offer paid.
5 of 19
SETTLED IN THE MONEY · 14 EXPIRED WORTHLESS · 1 STILL OPEN · NET +$102.9M ON THE FIRST PRINTS, +$112.7M OF IT FROM 5 BLOCKS
DATA VIA CBOE · MODELING VIA VS3D/VOLSIGNALS · MARKED THROUGH SEP 3, 2026, 4:20 PM ET · INFORMATIONAL ONLY, NOT INVESTMENT ADVICE
THE FIVE TAKEAWAYS

The year in five findings.

We scanned every SPX series inside 10 days to expiry on every trading day of 2026 for firm-origin call blocks, then marked each block at the bid from its first print through settlement. Five findings made the cut.

1

Firms bought 20 large near-dated call blocks this year, and 14 of the 19 that settled expired worthless.

Every SPX series inside 10 days to expiry, every trading day since January 2: 20 firm-origin call blocks of 3,000 lots or more, bought outright, cleared the screen, with $30.0M of premium on the first prints. Five settled in the money. The scoreboard is in section 02.

2

Two April blocks account for the year's dollars.

The Apr 17 6800 call (firms paid $53.80 on 2.0k) settled at $295.15 and the Apr 9 6700 call (paid $11.05 on 3.6k) at $125.58: +$89.5M between them on the first prints. The other 17 settled blocks net to +$13.4M. Both are in section 04.

3

The median block lost 45% by the close of the print day and settled at zero.

Marked at the bid against the offer paid, 6 of 20 were above water at that close. 9 doubled at some point before expiry, and most of those gave the gain back. The full distribution is in section 03.

4

SPX closed in the call's direction 60% of the time on the print day.

12 of 20 print days closed with the index above its level at the first print. The wider set of firm blocks, puts included, ran at 49%. Size and origin carried no directional read on their own.

5

The Sep 9 7825 call remains open, marked +400% at the Sep 3 close.

Firms paid about $1.10 on 4.8k in the first print and 18k on the day; the bid closed Sep 3 at $5.50. It has the shape every winner in the set shared, near the money with days to run, and it is one block of 20. Section 05.

TWENTY CALL BLOCKS · SEPTEMBER 3, 2026TAKEAWAYS
BY THE NUMBERS

Six figures, computed from the 20 blocks.

Every number below comes from the study's own marks: the offer around the first print, the bid at each horizon, and intrinsic value at the settlement level.

BLOCKS · JANUARY 2 TO SEP 3
20
Firm-origin call blocks of 3,000 lots or more, bought outright. Boxes and same-window spread legs were set aside; $30.0M of premium on the first prints.
SETTLED IN THE MONEY
5 of 19
14 expired worthless. 5 of those were 0DTE prints; 5 were struck 200 points or more above the index.
MEDIAN · CLOSE OF THE PRINT DAY
-45%
The median block at the bid against the offer paid. 6 of 20 were above water at that close.
NET AT SETTLEMENT · FIRST PRINTS
+$102.9M
+$112.7M of it from 5 blocks. The Apr 17 6800 and Apr 9 6700 calls alone: +$89.5M.
DOUBLED BEFORE EXPIRY
9
Blocks whose bid reached twice the offer paid at some point. 4 of them still settled worthless.
SPX UP ON THE PRINT DAY
60%
Print days that closed with the index above its level at the first print. 12 of 20; the wider firm-block set, puts included, ran at 49%.
TWENTY CALL BLOCKS · SEPTEMBER 3, 2026BY THE NUMBERS
THE YEAR IN ONE CHART

Return at settlement, block by block.

Each dot is one block on the day it printed; height is the settlement value against the offer paid, area is the premium on the first print.

RETURN AT SETTLEMENT · 20 BLOCKS · SEP 3 MARKS
-100%0%+100%+200%+300%+400%+500%+600%+JANFEBMARAPRMAYJUNJULAUGSEPAPR 17 6800 C +449%APR 9 6700 C +1036%SEP 9 7825 C, OPEN
GREEN = SETTLED IN THE MONEY · RED = EXPIRED WORTHLESS · BLUE = STILL OPEN, MARKED AT THE LATEST CLOSE · RETURNS ABOVE +600% SIT ON THE TOP LINE · SETTLEMENT = INTRINSIC VALUE AT THE CLOSING SPX LEVEL (OPENING LEVEL FOR AM-SETTLED MONTHLIES)

Both blocks that account for the year's dollars printed in the April rally, two days apart, on calls 40 to 150 points above the index with a week or less to expiry. The index moved through both strikes inside that window. Every block since June has settled worthless except the one still open, and the 5 blocks struck 200 points or more above the index never came within reach of their strikes.

The distribution is the finding. A settlement value of zero is the median outcome, the mean is carried by two prints, and nothing in the origin tag or the size of the print separates the two groups in advance. The blocks that paid shared a shape, near the money with days to run, and a market that moved their way.

TWENTY CALL BLOCKS · SEPTEMBER 3, 2026THE YEAR
THE BLOCKS, ONE BY ONE

20 prints, in the order they traded.

Each case names the series and the first block-sized print, then follows the bid from that print through settlement. Sizes are the first print's lots, with the day's total where firms kept buying.

FIRST PRINT · OFFER PAID · BID PATH · SETTLEMENT · ORDERED FROM JANUARY OUT
01 · JAN 5, 4:00 PM ET · 4 TRADING DAYS TO EXPIRY

SPXW Jan 9 7150 call

JAN 5JAN 7JAN 8JAN 9PAID 0.13
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.13 on 3.0k Jan 9 7150 C in the first print and 6.0k on the day, $38k of premium with SPX at 6903. The strike sat 248 points above the index. The block settled worthless on Jan 9 with SPX at 6968; along the way it marked -60% at the close, -60% at the next close.

READ: EXPIRED WORTHLESS · -$38K ON THE FIRST PRINT · -$75K ON THE DAY'S LOTS

02 · JAN 21, 2:50 PM ET · 0DTE

SPXW Jan 21 6920 call

JAN 21, 2:50 PM TO 4:00 PMPAID 3.20
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $3.20 on 4.0k Jan 21 6920 C in the first print, $1.3M of premium with SPX at 6905. The strike sat 15 points above the index. The block settled worthless on Jan 21 with SPX at 6876; along the way it marked -100% at the close, a high of $3.40 (+6%).

READ: EXPIRED WORTHLESS · -$1.3M ON THE FIRST PRINT

03 · JAN 21, 3:00 PM ET · 3 TRADING DAYS TO EXPIRY

SPXW Jan 26 7000 call

JAN 21JAN 23JAN 24JAN 25JAN 26PAID 6.00
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $6.00 on 3.3k Jan 26 7000 C in the first print and 13k on the day, $2.0M of premium with SPX at 6908. The strike sat 92 points above the index. The block settled worthless on Jan 26 with SPX at 6950; along the way it marked -67% at the close, -83% at the next close.

READ: EXPIRED WORTHLESS · -$2.0M ON THE FIRST PRINT · -$7.9M ON THE DAY'S LOTS

04 · APR 7, 11:30 AM ET · 2 TRADING DAYS TO EXPIRY

SPXW Apr 9 6700 call

APR 7APR 8APR 9PAID 11.05
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $11.05 on 3.6k Apr 9 6700 C in the first print and 11k on the day, $4.0M of premium with SPX at 6556. The strike sat 144 points above the index. The block settled at $125.58 on Apr 9 with SPX at 6826, +1036% against the offer paid; along the way it marked +111% at the close, +695% at the next close, a high of $134.10 (+1114%).

READ: SETTLED +1036% · +$41.2M ON THE FIRST PRINT · +$121.4M ON THE DAY'S LOTS

05 · APR 8, 10:40 AM ET · 7 TRADING DAYS TO EXPIRY

SPX Apr 17 6800 call

APR 8APR 10APR 12APR 14APR 16PAID 53.80
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $53.80 on 2.0k Apr 17 6800 C in the first print and 5.7k on the day, $10.8M of premium with SPX at 6757. The strike sat 43 points above the index. The block settled at $295.15 on Apr 17 with SPX at 7095, +449% against the offer paid; along the way it marked +17% at the close, +39% at the next close, a high of $346.00 (+543%).

READ: SETTLED +449% · +$48.3M ON THE FIRST PRINT · +$137.9M ON THE DAY'S LOTS

06 · APR 10, 10:00 AM ET · 0DTE

SPXW Apr 10 6880 call

APR 10, 10:00 AM TO 4:00 PMPAID 1.13
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $1.13 on 3.1k Apr 10 6880 C in the first print and 13k on the day, $349k of premium with SPX at 6833. The strike sat 47 points above the index. The block settled worthless on Apr 10 with SPX at 6817; along the way it marked -100% at the close, a high of $1.25 (+11%).

READ: EXPIRED WORTHLESS · -$349K ON THE FIRST PRINT · -$1.5M ON THE DAY'S LOTS

07 · APR 14, 10:10 AM ET · 0DTE

SPXW Apr 14 6960 call

APR 14, 10:10 AM TO 4:00 PMPAID 1.38
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $1.38 on 7.5k Apr 14 6960 C in the first print and 14k on the day, $1.0M of premium with SPX at 6928. The strike sat 32 points above the index. The block settled at $6.78 on Apr 14 with SPX at 6967, +393% against the offer paid; along the way it marked +511% at the close, a high of $8.40 (+511%).

READ: SETTLED +393% · +$4.1M ON THE FIRST PRINT · +$7.7M ON THE DAY'S LOTS

08 · APR 14, 10:20 AM ET · 0DTE

SPXW Apr 14 6970 call

APR 14, 10:20 AM TO 4:00 PMPAID 1.13
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $1.13 on 3.7k Apr 14 6970 C in the first print, $416k of premium with SPX at 6931. The strike sat 39 points above the index. The block settled worthless on Apr 14 with SPX at 6967; along the way it marked -91% at the close, a high of $4.00 (+256%).

READ: EXPIRED WORTHLESS · -$416K ON THE FIRST PRINT

09 · APR 28, 10:50 AM ET · 6 TRADING DAYS TO EXPIRY

SPXW May 6 7300 call

APR 28APR 30MAY 2MAY 4MAY 6PAID 8.05
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $8.05 on 2.9k May 6 7300 C in the first print, $2.3M of premium with SPX at 7124. The strike sat 176 points above the index. The block settled at $67.67 on May 6 with SPX at 7368, +741% against the offer paid; along the way it marked -14% at the close, -38% at the next close, a high of $53.40 (+563%).

READ: SETTLED +741% · +$17.0M ON THE FIRST PRINT

10 · MAY 18, 11:50 AM ET · 2 TRADING DAYS TO EXPIRY

SPXW May 20 7500 call

MAY 18MAY 19MAY 20PAID 3.08
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $3.08 on 2.5k May 20 7500 C in the first print and 3.0k on the day, $769k of premium with SPX at 7385. The strike sat 115 points above the index. The block settled worthless on May 20 with SPX at 7420; along the way it marked -11% at the close, -97% at the next close, a high of $3.30 (+7%).

READ: EXPIRED WORTHLESS · -$769K ON THE FIRST PRINT · -$935K ON THE DAY'S LOTS

11 · MAY 21, 9:50 AM ET · 2 TRADING DAYS TO EXPIRY

SPXW May 26 7500 call

MAY 21MAY 22MAY 26PAID 8.35
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $8.35 on 2.0k May 26 7500 C in the first print and 3.6k on the day, $1.7M of premium with SPX at 7393. The strike sat 107 points above the index. The block settled at $19.00 on May 26 with SPX at 7519, +128% against the offer paid; along the way it marked +90% at the close, +129% at the next close, a high of $37.50 (+349%).

READ: SETTLED +128% · +$2.1M ON THE FIRST PRINT · +$3.8M ON THE DAY'S LOTS

12 · JUN 10, 10:20 AM ET · 6 TRADING DAYS TO EXPIRY

SPX Jun 18 7600 call

JUN 10JUN 12JUN 14JUN 16JUN 18PAID 8.80
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $8.80 on 2.4k Jun 18 7600 C in the first print and 3.1k on the day, $2.1M of premium with SPX at 7379. The strike sat 221 points above the index. The block settled worthless on Jun 18 with SPX at 7504; along the way it marked -55% at the close, +7% at the next close, a high of $31.80 (+261%).

READ: EXPIRED WORTHLESS · -$2.1M ON THE FIRST PRINT · -$2.8M ON THE DAY'S LOTS

13 · JUL 7, 11:20 AM ET · 0DTE

SPXW Jul 7 7700 call

JUL 7, 11:20 AM TO 4:00 PMPAID 0.10
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.10 on 2.4k Jul 7 7700 C in the first print and 6.0k on the day, $24k of premium with SPX at 7486. The strike sat 214 points above the index. The block settled worthless on Jul 7 with SPX at 7502; along the way it marked -100% at the close.

READ: EXPIRED WORTHLESS · -$24K ON THE FIRST PRINT · -$60K ON THE DAY'S LOTS

14 · JUL 13, 1:20 PM ET · 0DTE

SPXW Jul 13 7710 call

JUL 13, 1:20 PM TO 4:00 PMPAID 0.10
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.10 on 3.2k Jul 13 7710 C in the first print and 4.3k on the day, $32k of premium with SPX at 7528. The strike sat 183 points above the index. The block settled worthless on Jul 13 with SPX at 7517; along the way it marked -100% at the close.

READ: EXPIRED WORTHLESS · -$32K ON THE FIRST PRINT · -$43K ON THE DAY'S LOTS

15 · JUL 13, 4:10 PM ET · 4 TRADING DAYS TO EXPIRY

SPX Jul 17 7720 call

JUL 13JUL 15JUL 16JUL 17PAID 0.57
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.57 on 3.0k Jul 17 7720 C in the first print, $173k of premium with SPX at 7515. The strike sat 205 points above the index. The block settled worthless on Jul 17 with SPX at 7438; along the way it marked -4% at the close, -74% at the next close.

READ: EXPIRED WORTHLESS · -$173K ON THE FIRST PRINT

16 · AUG 6, 12:00 PM ET · 6 TRADING DAYS TO EXPIRY

SPXW Aug 14 8800 call

AUG 6AUG 8AUG 10AUG 12AUG 14PAID 0.15
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.15 on 3.0k Aug 14 8800 C in the first print, $45k of premium with SPX at 7705. The strike sat 1095 points above the index. The block settled worthless on Aug 14 with SPX at 7783; along the way it marked -67% at the close, -100% at the next close.

READ: EXPIRED WORTHLESS · -$45K ON THE FIRST PRINT

17 · AUG 14, 3:10 PM ET · 5 TRADING DAYS TO EXPIRY

SPX Aug 21 8000 call

AUG 14AUG 16AUG 18AUG 20PAID 0.55
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $0.55 on 2.0k Aug 21 8000 C in the first print and 3.1k on the day, $110k of premium with SPX at 7783. The strike sat 217 points above the index. The block settled worthless on Aug 21 with SPX at 7670; along the way it marked -45% at the close, -82% at the next close.

READ: EXPIRED WORTHLESS · -$110K ON THE FIRST PRINT · -$170K ON THE DAY'S LOTS

18 · AUG 17, 9:50 AM ET · 4 TRADING DAYS TO EXPIRY

SPXW Aug 21 7880 call

AUG 17AUG 18AUG 19AUG 20AUG 21PAID 3.03
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $3.03 on 3.0k Aug 21 7880 C in the first print, $908k of premium with SPX at 7780. The strike sat 100 points above the index. The block settled worthless on Aug 21 with SPX at 7680; along the way it marked -65% at the close, -97% at the next close.

READ: EXPIRED WORTHLESS · -$908K ON THE FIRST PRINT

19 · AUG 21, 10:40 AM ET · 1 TRADING DAY TO EXPIRY

SPXW Aug 24 7710 call

AUG 21AUG 22AUG 23AUG 24PAID 5.00
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH SETTLEMENT · DASHED = THE OFFER PAID

Firms paid about $5.00 on 3.0k Aug 24 7710 C in the first print and 4.0k on the day, $1.5M of premium with SPX at 7662. The strike sat 48 points above the index. The block settled worthless on Aug 24 with SPX at 7654; along the way it marked +22% at the close, -100% at the next close, a high of $11.10 (+122%).

READ: EXPIRED WORTHLESS · -$1.5M ON THE FIRST PRINT · -$2.0M ON THE DAY'S LOTS

20 · SEP 2, 3:30 PM ET · 4 TRADING DAYS TO EXPIRY

SPXW Sep 9 7825 call

SEP 2PAID 1.10
BID, 10-MINUTE SNAPSHOTS FROM THE FIRST PRINT THROUGH THE LATEST MARK · DASHED = THE OFFER PAID

Firms paid about $1.10 on 4.8k Sep 9 7825 C in the first print and 18k on the day, $528k of premium with SPX at 7671. The strike sat 154 points above the index. The block marked +400% at the Sep 3 close, still open; along the way it marked +27% at the close, +436% at the next close, a high of $8.90 (+709%).

READ: OPEN · +400% AT THE SEP 3 CLOSE · +$2.1M ON THE FIRST PRINT

PRINT = THE FIRST 10-MINUTE WINDOW CARRYING 2,000 LOTS OR MORE OF FIRM BUYING IN THE SERIES. OFFER PAID = THE ASK AVERAGED OVER THAT WINDOW'S START AND END SNAPSHOTS. PATH = THE BID AT EVERY 10-MINUTE SNAPSHOT IN REGULAR HOURS. SETTLEMENT = INTRINSIC VALUE AT THE CLOSING SPX LEVEL, THE OPENING LEVEL FOR AM-SETTLED MONTHLIES.

TWENTY CALL BLOCKS · SEPTEMBER 3, 2026THE BLOCKS
WHAT THE WINNERS HAD IN COMMON

Near the money, days to run, and an index that moved.

The five blocks that settled in the money, set against the fourteen that did not.

THE FIVE THAT SETTLED IN THE MONEY
BlockOffer paid$ per contractFirst printlotsStrike vs indexpoints above, at the printDays to expirytrading daysSPX at settlementSettlement$ per contractResultvs the offer paid
Apr 8 · Apr 17 6800 C53.802,0004377095295.15+449%
Apr 7 · Apr 9 6700 C11.053,60014426826125.58+1036%
Apr 28 · May 6 7300 C8.052,8501766736867.67+741%
Apr 14 · Apr 14 6960 C1.387,50032069676.78+393%
May 21 · May 26 7500 C8.352,0001072751919.00+128%

Apr 17 6800 C, Apr 9 6700 C, May 6 7300 C, Apr 14 6960 C, May 26 7500 C settled in the money because SPX rose 338, 270, 244, 39, 126 points between the print and settlement. Each strike sat 32 to 176 points above the index at the print, with two to seven trading days to expiry, and the index moved through the strike inside that window.

The 14 blocks that settled worthless split three ways: 5 were 0DTE, 5 were struck 205 to 1095 points above the index with days to run, and 4 were near the money in a market that did not move through the strike. The origin tag and the size of the print were the same on both sides of that split.

The Sep 9 7825 call is the near-the-money, days-to-run shape, marked +400% at the Sep 3 close with 4 trading days left at the print. Its result is recorded here when it settles.

Size and origin identify a large buyer. They do not identify a right one.
Every print here was flagged in VS Pro intraday, the day it traded.
VS ProVS3D 7-day trial
TWENTY CALL BLOCKS · SEPTEMBER 3, 2026THE WINNERS
APPENDIX

Disclosures and terminology

Nature of this publication

This publication is provided for informational and educational purposes only. It is impersonal, is not tailored to the circumstances of any recipient, and does not constitute investment, financial, legal, tax or accounting advice, nor a recommendation, offer or solicitation to buy or sell any security, option, futures contract or other instrument, or to pursue any strategy.

Data and models

Trade sizes, prices, marks and derived measures are model-based estimates built from third-party data believed reliable but not guaranteed; prints are located in 10-minute exchange snapshots and priced from the quote feed, not from a time-and-sales feed. Errors and omissions are possible and figures may be revised without notice.

Statistics and projections

Statistics are historical, in-sample associations, not predictions. Nothing here forecasts a level or a date, and actual outcomes will differ, perhaps materially.

Risk

Options involve substantial risk and are not suitable for all investors. Past patterns do not guarantee future results. Consult your own licensed financial advisor before making any investment decision.

Participants and naming

Participant tags are exchange reporting categories; "firms" denotes the firm and broker-dealer categories in aggregate and "Paper" the customer categories. No participant intent is claimed and no party is identified.

Copyright

© 2026 VolSignals. All rights reserved.

Terms used in this edition

Block

A series-day where the firm category bought 3,000 contracts or more net, with at least one 10-minute window carrying 2,000 contracts or more of firm buying. The first such window is the print the case is timed from.

Bought outright

No other series in the same 10-minute window carried firm selling of half the block or more, or firm buying of the opposite type. Four-leg boxes and same-window spread legs were set aside.

Offer paid

The ask averaged over the print window's start and end snapshots. The quote feed cannot pin a print closer; a trade price feed was not used.

Marks

The bid at the close of the print day and at the next close; the best bid at any regular-hours snapshot before expiry; and the settlement value, intrinsic at the closing SPX level (the opening level for AM-settled monthlies).

First print / day's lots

Dollar results are quoted on the first print's contracts; where firms kept buying the same series that day, the day's total is shown alongside.

Firms and Paper

Firms = the firm and broker-dealer exchange categories; Paper = the customer and pro-customer categories; market makers are the market-maker category.

EditionVS Research Highlight - Twenty Call Blocks (September 3, 2026) · Free edition, web
Data throughSeptember 3, 2026, 4:20 PM ET (the open block is marked at that snapshot)
SourcesCboe open/close volume by origin; 10-minute SPX option quotes; VS3D / VolSignals modeling
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VolSignalsINDEX VOL & POSITIONING INTELLIGENCE · SEPTEMBER 3, 2026 · DATA VIA CBOE · MODELING VIA VS3D/VOLSIGNALS · VOLSIGNALS.COM · @VOLSIGNALS · INFORMATIONAL ONLY, NOT INVESTMENT ADVICE