Research Open Interest Daily All issues

SPY puts built for a third session

OI 13.32M vs 14.10M 5-day ADV. 53 percent calls. SPX closed 7,693, down 0.7 percent from Monday. VIX rose 4 percent to 15.80.

OI 13.32M vs 14.10M 5-day ADV. 7.07M calls, 6.25M puts. Benchmarks opens right, closes left.

SPY puts are the through-line: 330k Friday, 386k Monday, 446k Tuesday, into a second down day. SPX puts stepped up to 408k from 297k. The VIX call book cooled — 367k Friday, 444k Monday, 291k Tuesday. TLT flipped: 190k puts against 158k calls, after Monday’s 351k call open. Single stocks still took most of the new interest, below their own average.

US listed options

How Stocks, ETFs and Indices Changed, vs Average Daily Change

Put/call of contracts opened, with the five-day mark. Today versus the prior five sessions.

Put/call
vs ADV
Stocks7.70M
1.00.73×
1.00.90×
ETFs4.49M
1.23×
1.06×
Indices1.13M
0.88×
0.89×
← put-heavycall-heavy →5-day put/call
← below ADVabove ADV →

Put/call = puts opened ÷ calls opened. Opened means contracts that gained open interest, study to settle. The gold mark is that same ratio over the prior five sessions (puts opened in the window ÷ calls opened in the window). Scale is log 0.5–2.0; 1.0 is an even split. Above 1.0 sits left (put-heavy).

vs ADV = contracts opened today ÷ the mean opened over those five sessions. Scale is log 0.5–2.0; 1.0 is the usual size.

FZN Analytics · settled open interest, 18–19 Aug 2026 · ADV window 11–17 Aug

Just under three in five contracts opened on Tuesday were single stocks (58 percent). That is where the book sat: not in the index complex, which printed 1.13 million, 9 percent of the day, after Friday’s 2.10 million.

The exception on the figure is exchange-traded funds, the only class where puts outran calls — 2.47M against 2.02M. They have on 18 of the last 20 sessions. Stocks opened calls on all 20. That shape is the standing book, not a hedge that arrived on the second down day.

US single stocks · by sector

How each sector changed, vs average daily change

Put/call of contracts opened, with the five-day mark. Today versus the prior five sessions.

Put/call
vs ADV
Technology2.99M
1.00.87×
1.00.87×
Consumer Cyclical0.96M
0.64×
0.96×
Financials0.81M
0.65×
0.85×
Communications0.75M
0.50×
0.95×
Industrials0.69M
0.78×
0.78×
Healthcare0.43M
0.66×
0.86×
Energy0.36M
0.45×
1.33×
Materials0.21M
0.74×
0.77×
Consumer Defensive0.21M
0.96×
0.79×
Utilities0.19M
1.05×
1.56×
Real Estate0.10M
0.68×
0.92×
← put-heavycall-heavy →5-day put/call
← below ADVabove ADV →

Put/call = puts opened ÷ calls opened. Opened means contracts that gained open interest, study to settle. The gold mark is that same ratio over the prior five sessions (puts opened in the window ÷ calls opened in the window). Scale is log 0.5–2.0; 1.0 is an even split. Above 1.0 sits left (put-heavy).

vs ADV = contracts opened today ÷ the mean opened over those five sessions. Scale is log 0.5–2.0; 1.0 is the usual size.

FZN Analytics · settled open interest, 18–19 Aug 2026 · common stock and ADRs · ADV window 11–17 Aug

Utilities opened 1.56× its 5-day ADV. Energy 1.33×. Technology was 0.87× — the large book was below its usual size. Utilities was the only put-heavy open, put/call 1.05×, against a five-day book that was 1.5-to-1 calls.

the volatility complex, every day

Of the 278k VIX calls added net, 119k landed in the 16 September expiry. November took 92k, ahead of October. The Wednesday 26 August book — the new front, seven days out — added 12k calls. Monday’s 19 August weekly is off the board; it settled this morning.

Which expiry took the flow

Change in open interest by expiry, with at-the-money implied volatility. Each expiry prices off its own future.

Which expiry took the flowChange in VIX open interest by expiry, calls against puts, with at-the-money implied volatility.050k100k150k26 Aug7d119k16 Sep28d31k21 Oct63d92k18 Nov91d16 Dec119d20 Jan154d17 Mar210d146%126%116%158%callsputsimplied vol

The standing call book is still the 20 / 25 / 30 / 35 ladder. Tuesday built onto 20, not Monday’s 24. The 20 call added 29k across the curve, onto a standing 476k. The 24s, which had taken 182k on Monday, added 6.1k. The 65s added 23k — a far upside print, not the strike the ladder is built on. The September 20 call’s tape is 73 percent multi-leg, so the side is not claimed.

What the change built onto

Contracts outstanding — pale is Tuesday's open, solid is what the session added.

What the change built ontoVIX contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $15.806560503530252221201918171615← PUTSCALLS →
Tuesday's open session added ← puts calls →

Open interest change is the 19 August settlement minus the 18 August bucket. Opened, in the paragraph, means contracts that gained open interest.

A VIX option prices off the future for its own expiry, not spot VIX. 19 August was VIX settlement Wednesday — not Friday's equity OPEX. Implied vol is the median over a tight at-the-money band (delta 0.4–0.6) on Tuesday's tape, 13:30–20:57 UTC. VIX option IV is vol-of-vol; it prints near 150 percent, not 15.

FZN Analytics · settled open interest, 18–19 Aug 2026 · VIX + VIXW · $1 strikes on the ladder

Two cuts. Tuesday versus each name’s own five-day average — INDA 27.3×, TJX 8.4×, BP 8.3×. And a three-day run after a quiet book, which the five-day average hides: Baidu 49k / 37k / 72k against an 12k median; Amer Sports 56k / 16k / 59k against 2.1k a day. A package (TLT, GLD, EEM) stays off the figure.

open interest · by name

Contracts opened 18 August versus each name’s five-day average

A reading of 1× is that name’s usual day. Colour is put or call of the contracts that opened. INDA is 27.3×; the bar is capped at 8×.

1×4×8×
INDAiShares India · 9.9k
27.3×
TJXThe TJX Companies, · 40k · earnings 19 Aug
8.41×
BPBP p.l.c · 27k · earnings 3 Nov
8.28×
GTMZoomInfo Technologies · 28k · earnings 2 Nov
5.75×
TRIPTripadvisor, · 11k · earnings 5 Nov
4.69×
CVXChevron · 49k · earnings 30 Oct
4.33×
CRMLCritical Metals · 15k
4.30×
CVNACarvana Co · 75k · earnings 4 Nov
4.24×
TGTTarget · 36k · earnings 19 Aug
4.21×
AURAurora Innovation, · 10k · earnings 27 Oct
4.12×
puts opened calls opened 1× = that name’s usual day

Multiple = contracts that gained open interest, 18 August to the 19 August settlement, divided by the mean of that same measure over the prior five sessions (11–17 Aug). Scale is linear 0–8; INDA is off-scale at 27.3×. Colour is puts opened ÷ calls opened. Option-volume ADV ≥ 5k, standing OI ≥ 10k, at least 8k opened, not a package.

FZN Analytics · settled open interest, 18–19 Aug 2026 · ADV window 11–17 Aug · proposal, not locked

open interest · by name

Three-day run after a quiet book

Each of the last three sessions opened at least twice the median of the ten sessions before that. Tuesday versus the five-day average looks quiet because the average is the run.

NameQuiet medianFri 14 · Mon 17 · Tue 18vs 5-day ADV
KEEL · Keel Infrastructure15k55k · 40k · 56k2.03×
BIDU · Baidu12k49k · 37k · 72k3.24×
EYPT · EyePoint Pharmaceuticals,3.9k22k · 12k · 10k1.12×
AS · Amer Sports,2.1k56k · 16k · 59k2.49×
MPC · Marathon Petroleum1.1k5.5k · 2.5k · 4.0k1.34×
PAGP · Plains GP Holdings LP1.1k10k · 8.2k · 4.2k0.72×
SNDQ · SNDQ1.1k2.3k · 6.1k · 2.5k0.88×
OTLK · Outlook Therapeutics,8744.6k · 3.9k · 2.2k0.79×
STNE · StoneCo Ltd6084.5k · 2.3k · 1.8k0.36×
BZAI · Blaize Holdings4935.4k · 1.9k · 1.2k0.70×
BORR · Borr Drilling Limited3683.6k · 2.4k · 1.4k0.37×
QMCO · Quantum1144.6k · 564 · 3290.09×

Quiet median is the median of contracts opened over the ten sessions before the three-day run, same two-bucket query, first eod pair (17 July) excluded.

FZN Analytics · settled open interest, 18–19 Aug 2026 · proposal, not locked

INDA · iShares MSCI India ETF

Tuesday versus its own five-day average

Last
$49.40 -0.4%
Sector
—
Market cap
$6.60B
Earnings
—

27.3× its own five-day average — 9.9k opened, put-heavy.

INDA open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:29 UTC.

INDA open interest change by expiryChange in INDA open interest by expiry, calls against puts.05.0k10k15k9.9k18 Sep30dcallsputs

FZN Analytics · settled open interest, 18–19 Aug 2026 · INDA

INDA contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

INDA contracts outstanding by strikeINDA contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $49.4065605955545251504947+9.9k45← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · INDA

TJX · The TJX Companies, Inc

Tuesday versus its own five-day average

Last
$150.96 +0.0%
Sector
Consumer Cyclical · Apparel - Retail
Market cap
$174.05B
Earnings
19 Aug

8.4× its own five-day average — 40k opened, call-heavy.

TJX open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

TJX open interest change by expiryChange in TJX open interest by expiry, calls against puts, with at-the-money implied volatility.010k20k30k40k30k21 Aug2d28 Aug9d53%37%34%58%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · TJX

TJX contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

TJX contracts outstanding by strikeTJX contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $150.96180170165160157.5155152.5+28k150145143140135130← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · TJX

BP · BP p.l.c

Tuesday versus its own five-day average

Last
$43.42 +1.3%
Sector
Energy · Oil & Gas Integrated
Market cap
$111.30B
Earnings
3 Nov

8.3× its own five-day average — 27k opened, call-heavy.

BP open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

BP open interest change by expiryChange in BP open interest by expiry, calls against puts, with at-the-money implied volatility.05.0k10k15k20k18 Sep30d5.8k16 Oct58d16k18 Dec121d21 Jan520d29%28%26%32%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · BP

BP contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

BP contracts outstanding by strikeBP contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $43.4255504845+16k44+7.0k434240383735← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · BP

GTM · ZoomInfo Technologies Inc

Tuesday versus its own five-day average

Last
$3.82 +1.6%
Sector
Technology · Software - Application
Market cap
$1.07B
Earnings
2 Nov

5.8× its own five-day average — 28k opened, put-heavy.

GTM open interest change by expiry

Change in open interest by expiry, 18 August.

GTM open interest change by expiryChange in GTM open interest by expiry, calls against puts.010k20k30k27k2 Oct44dcallsputs

FZN Analytics · settled open interest, 18–19 Aug 2026 · GTM

GTM contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

GTM contracts outstanding by strikeGTM contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $3.821087.5543.53+27k2.521← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · GTM

TRIP · Tripadvisor, Inc

Tuesday versus its own five-day average

Last
$10.23 +0.6%
Sector
Consumer Cyclical · Travel Services
Market cap
$1.67B
Earnings
5 Nov

4.7× its own five-day average — 11k opened, put-heavy.

TRIP open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:58 UTC.

TRIP open interest change by expiryChange in TRIP open interest by expiry, calls against puts, with at-the-money implied volatility.02.0k4.0k6.0k18 Sep30d2.8k15 Jan149d1.6k19 Mar212d17 Dec485d5.0k21 Jan520d53%49%57%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · TRIP

TRIP contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

TRIP contracts outstanding by strikeTRIP contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $10.232520171513+5.0k121110982← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · TRIP

CVX · Chevron Corporation

Tuesday versus its own five-day average

Last
$205.75 +1.5%
Sector
Energy · Oil & Gas Integrated
Market cap
$379.20B
Earnings
30 Oct

4.3× its own five-day average — 49k opened, call-heavy.

CVX open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

CVX open interest change by expiryChange in CVX open interest by expiry, calls against puts, with at-the-money implied volatility.010k20k30k40k21 Aug2d23k11 Sep23d18 Sep30d20 Nov93d18 Dec121d24%24%20%26%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · CVX

CVX contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

CVX contracts outstanding by strikeCVX contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $205.75220215+33k210207.5205200195190185180175170← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · CVX

CRML · Critical Metals Corp

Tuesday versus its own five-day average

Last
$6.15 -6.4%
Sector
Basic Materials · Industrial Materials
Market cap
$633.5M
Earnings
—

4.3× its own five-day average — 15k opened, call-heavy.

CRML open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, 13:30–20:02 UTC.

CRML open interest change by expiryChange in CRML open interest by expiry, calls against puts, with at-the-money implied volatility.02.0k4.0k6.0k21 Aug2d28 Aug9d3.5k3.5k18 Sep30d5.0k85020 Nov93d100%108%92%117%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · CRML

CRML contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

CRML contracts outstanding by strikeCRML contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $6.15252017.51512.5107.576.55← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · CRML

CVNA · Carvana Co

Tuesday versus its own five-day average

Last
$65.03 -7.2%
Sector
Consumer Cyclical · Auto - Dealerships
Market cap
$74.62B
Earnings
4 Nov

4.2× its own five-day average — 75k opened, put-heavy.

CVNA open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:31–19:59 UTC.

CVNA open interest change by expiryChange in CVNA open interest by expiry, calls against puts, with at-the-money implied volatility.05.0k10k15k20k16k21 Aug2d6.3k28 Aug9d5.2k4 Sep16d7.6k17k18 Sep30d2.5k20 Nov93d15 Jan149d76%61%53%82%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · CVNA

CVNA contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

CVNA contracts outstanding by strikeCVNA contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $65.0314012080727066+8.3k6460+26k5553504013← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · CVNA

TGT · Target Corporation

Tuesday versus its own five-day average

Last
$152.63 +1.1%
Sector
Consumer Defensive · Discount Stores
Market cap
$67.26B
Earnings
19 Aug

4.2× its own five-day average — 36k opened, put-heavy.

TGT open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, 13:32–20:00 UTC.

TGT open interest change by expiryChange in TGT open interest by expiry, calls against puts, with at-the-money implied volatility.05.0k10k15k8.5k14k21 Aug2d28 Aug9d2.2k18 Sep30d16 Oct58d17 Jun302d98%36%33%106%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · TGT

TGT contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

TGT contracts outstanding by strikeTGT contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $152.63172.5+1.7k170+1.9k150+2.3k145+1.9k140+2.2k135+3.2k130+1.6k125120+1.6k1101008580← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · TGT

AUR · Aurora Innovation, Inc

Tuesday versus its own five-day average

Last
$6.15 -11.8%
Sector
Technology · Information Technology Services
Market cap
$14.18B
Earnings
27 Oct

4.1× its own five-day average — 10k opened, call-heavy.

AUR open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

AUR open interest change by expiryChange in AUR open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k2.0k3.0k2.8k21 Aug2d50718 Sep30d1.6k16 Oct58d20 Nov93d48518 Dec121d15 Jan149d69721 Jan520d64%71%58%77%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · AUR

AUR contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

AUR contracts outstanding by strikeAUR contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $6.151211109876.565.5543← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · AUR

KEEL · Keel Infrastructure Corp

3-day run after a quiet book

Last
$3.16 -16.2%
Sector
Technology · Information Technology Services
Market cap
$2.48B
Earnings
12 Nov

Three-day run after a quiet book: 55k / 40k / 56k against a 15k median. Tuesday is 2.03× the 5-day ADV because that window is the run.

KEEL open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

KEEL open interest change by expiryChange in KEEL open interest by expiry, calls against puts, with at-the-money implied volatility.010k20k30k4.4k21 Aug2d4.1k28 Aug9d20k18 Sep30d20 Nov93d3.8k15 Jan149d19 Feb184d21 Jan520d15 Dec849d111%99%91%120%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · KEEL

KEEL contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

KEEL contracts outstanding by strikeKEEL contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $3.1612107.575+21k4.543.532← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · KEEL

BIDU · Baidu, Inc

3-day run after a quiet book

Last
$90.87 -12.7%
Sector
Communication Services · Internet Content & Information
Market cap
$38.29B
Earnings
18 Aug

Three-day run after a quiet book: 49k / 37k / 72k against a 12k median. Tuesday is 3.24× the 5-day ADV because that window is the run.

BIDU open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, 13:30–20:00 UTC.

BIDU open interest change by expiryChange in BIDU open interest by expiry, calls against puts, with at-the-money implied volatility.010k20k30k6.0k21 Aug2d28 Aug9d21k18 Sep30d16 Oct58d18 Dec121d19 Mar212d21 Jan520d56%49%42%61%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · BIDU

BIDU contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

BIDU contracts outstanding by strikeBIDU contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $90.87160150+13k130125120115110+3.4k105+4.2k100+4.5k95+3.9k90+6.9k+3.4k80+4.2k← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · BIDU

EYPT · EyePoint Pharmaceuticals, Inc

3-day run after a quiet book

Last
$5.47 +12.3%
Sector
Healthcare · Biotechnology
Market cap
$978.4M
Earnings
4 Nov

Three-day run after a quiet book: 22k / 12k / 10k against a 3.9k median. Tuesday is 1.12× the 5-day ADV because that window is the run.

EYPT open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

EYPT open interest change by expiryChange in EYPT open interest by expiry, calls against puts, with at-the-money implied volatility.02.0k4.0k6.0k21 Aug2d92118 Sep30d16 Oct58d2.9k20 Nov93d94518 Dec121d4.0k15 Jan149d175%165%149%189%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · EYPT

EYPT contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

EYPT contracts outstanding by strikeEYPT contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $5.4735252017.51512.5107.5+3.6k52.5+4.0k← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · EYPT

AS · Amer Sports, Inc

3-day run after a quiet book

Last
$33.64 +3.2%
Sector
Consumer Cyclical · Leisure
Market cap
$20.95B
Earnings
18 Aug

Three-day run after a quiet book: 56k / 16k / 59k against a 2.1k median. Tuesday is 2.49× the 5-day ADV because that window is the run.

AS open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

AS open interest change by expiryChange in AS open interest by expiry, calls against puts, with at-the-money implied volatility.010k20k30k40k50k60k21 Aug2d48k9.8k18 Sep30d15 Jan149d47%46%42%51%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · AS

AS contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

AS contracts outstanding by strikeAS contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $33.64554542.540+41k37.5+6.0k3532.5+9.6k3027.525← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · AS

MPC · Marathon Petroleum Corporation

3-day run after a quiet book

Last
$366.26 +2.3%
Sector
Energy · Oil & Gas Refining & Marketing
Market cap
$91.26B
Earnings
3 Nov

Three-day run after a quiet book: 5.5k / 2.5k / 4.0k against a 1.1k median. Tuesday is 1.34× the 5-day ADV because that window is the run.

MPC open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

MPC open interest change by expiryChange in MPC open interest by expiry, calls against puts, with at-the-money implied volatility.02.0k4.0k6.0k8.0k10k21 Aug2d18 Sep30d16 Oct58d19 Mar212d45%42%38%48%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · MPC

MPC contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

MPC contracts outstanding by strikeMPC contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $366.26410400390380360350+434340330320310300290260240← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · MPC

PAGP · Plains GP Holdings LP

3-day run after a quiet book

Last
$26.30 +2.0%
Sector
Energy · Oil & Gas Midstream
Market cap
$5.04B
Earnings
4 Nov

Three-day run after a quiet book: 10k / 8.2k / 4.2k against a 1.1k median. Tuesday is 0.72× the 5-day ADV because that window is the run.

PAGP open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:56 UTC.

PAGP open interest change by expiryChange in PAGP open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k2.0k1.4k21 Aug2d1.4k18 Sep30d20 Nov93d15 Jan149d19 Feb184d35421 Jan520d15%22%14%24%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · PAGP

PAGP contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

PAGP contracts outstanding by strikePAGP contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $26.3030282726252423222120← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · PAGP

SNDQ · SNDQ

3-day run after a quiet book

Last
$13.57 -1.2%
Sector
—
Market cap
$17.3M
Earnings
—

Three-day run after a quiet book: 2.3k / 6.1k / 2.5k against a 1.1k median. Tuesday is 0.88× the 5-day ADV because that window is the run.

SNDQ open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

SNDQ open interest change by expiryChange in SNDQ open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k14521 Aug2d58418 Sep30d18 Dec121d79019 Mar212d186%161%148%201%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · SNDQ

SNDQ contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

SNDQ contracts outstanding by strikeSNDQ contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $13.5780363223201817+18816+20815+3371413+204128+380← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · SNDQ

OTLK · Outlook Therapeutics, Inc

3-day run after a quiet book

Last
$0.70 +4.1%
Sector
Healthcare · Biotechnology
Market cap
$39.5M
Earnings
18 Dec

Three-day run after a quiet book: 4.6k / 3.9k / 2.2k against a 874 median. Tuesday is 0.79× the 5-day ADV because that window is the run.

OTLK open interest change by expiry

Change in open interest by expiry, 18 August.

OTLK open interest change by expiryChange in OTLK open interest by expiry, calls against puts.01.0k2.0k21 Aug2d18 Sep30d70815 Jan149d1.3k19 Feb184dcallsputs

FZN Analytics · settled open interest, 18–19 Aug 2026 · OTLK

OTLK contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

OTLK contracts outstanding by strikeOTLK contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $0.7012.5107.552.521.510.5← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · OTLK

STNE · StoneCo Ltd

3-day run after a quiet book

Last
$9.12 -1.6%
Sector
Technology · Software - Application
Market cap
$2.73B
Earnings
5 Nov

Three-day run after a quiet book: 4.5k / 2.3k / 1.8k against a 608 median. Tuesday is 0.36× the 5-day ADV because that window is the run.

STNE open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:58 UTC.

STNE open interest change by expiryChange in STNE open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k2.0k21 Aug2d41718 Sep30d16 Oct58d15 Jan149d21 Jan520d39%36%43%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · STNE

STNE contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

STNE contracts outstanding by strikeSTNE contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $9.1227.4719.4717.4714.4712.47121110.479.4798.477.475.47← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · STNE

BZAI · Blaize Holdings Inc

3-day run after a quiet book

Last
$0.56 +7.2%
Sector
Technology · Semiconductors
Market cap
$106.4M
Earnings
12 Nov

Three-day run after a quiet book: 5.4k / 1.9k / 1.2k against a 493 median. Tuesday is 0.70× the 5-day ADV because that window is the run.

BZAI open interest change by expiry

Change in open interest by expiry, 18 August.

BZAI open interest change by expiryChange in BZAI open interest by expiry, calls against puts.01.0k21 Aug2d18 Sep30d20 Nov93d18115 Jan149d19 Feb184d79321 Jan520dcallsputs

FZN Analytics · settled open interest, 18–19 Aug 2026 · BZAI

BZAI contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

BZAI contracts outstanding by strikeBZAI contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $0.56107654321.510.5← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · BZAI

BORR · Borr Drilling Limited

3-day run after a quiet book

Last
$4.44 -1.3%
Sector
Energy · Oil & Gas Drilling
Market cap
$1.24B
Earnings
4 Nov

Three-day run after a quiet book: 3.6k / 2.4k / 1.4k against a 368 median. Tuesday is 0.37× the 5-day ADV because that window is the run.

BORR open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:58 UTC.

BORR open interest change by expiryChange in BORR open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k2.0k21 Aug2d18 Sep30d1.0k20 Nov93d19 Feb184d21 Jan520d65%60%71%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · BORR

BORR contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

BORR contracts outstanding by strikeBORR contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $4.4410987.5765432.5← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · BORR

QMCO · Quantum Corporation

3-day run after a quiet book

Last
$23.52 -5.6%
Sector
Technology · Computer Hardware
Market cap
$71.5M
Earnings
12 Nov

Three-day run after a quiet book: 4.6k / 564 / 329 against a 114 median. Tuesday is 0.09× the 5-day ADV because that window is the run.

QMCO open interest change by expiry

Change in open interest by expiry, 18 August. At-the-money implied vol, tape truncated, 13:30–19:59 UTC.

QMCO open interest change by expiryChange in QMCO open interest by expiry, calls against puts, with at-the-money implied volatility.01.0k21 Aug2d18 Sep30d18 Dec121d115%106%125%callsputsimplied vol

FZN Analytics · settled open interest, 18–19 Aug 2026 · QMCO

QMCO contracts outstanding by strike

Pale is Tuesday’s open, solid is what the session added.

QMCO contracts outstanding by strikeQMCO contracts outstanding by strike. Pale is Tuesday's open, solid is what the session added.spot $23.5235302522.52017.51512.5107.5← PUTSCALLS →
Tuesday’s opensession added← putscalls →

FZN Analytics · settled open interest, 18–19 Aug 2026 · QMCO

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