XOOMAR

Octave Specialty Group (OSG)

Octave Specialty Group on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as surety insurance.

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1.4M

Short interest

settlement 2026-09-30

3.0

Days to cover

-0.1 days vs prior

36.7%

Short share of volume

2026-10-23

7,793

Fails to deliver

settlement 2026-09-28

Mon 9 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-23.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in OSG is 1,409,717 shares, down 319,330 shares over the last month. Over the last 48 readings it ranged from 410,496 shares (15 June 2023) to 2,291,368 shares (28 November 2025). At the reported average volume of 468K shares a day that is 3.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-301,409,717-18.8%467,7563.01
2026-09-151,736,370+0.4%561,4723.09
2026-08-311,729,047+10.4%463,7573.73
2026-08-141,566,483+8.2%600,0452.61
2026-07-311,448,143+1.6%321,5434.50
2026-07-151,424,719+8.8%360,6503.95
2026-06-301,308,984+22.1%750,7231.74
2026-06-151,072,426-10.0%428,8662.50
2026-05-291,191,334-5.5%482,6412.47
2026-05-151,260,380-3.5%1,324,9251.00
2026-04-301,306,128-2.6%381,6193.42
2026-04-151,340,441-6.1%727,0491.84
2026-03-311,427,951-15.1%620,7712.30
2026-03-131,680,890+0.3%544,9933.08
2026-02-271,676,197-10.0%671,1162.50
2026-02-131,861,940-8.6%482,6453.86
2026-01-302,036,049-2.0%703,2382.90
2026-01-152,078,437-0.6%845,6972.46
2025-12-312,091,067-7.7%651,1303.21
2025-12-152,264,181-1.2%622,0773.64
2025-11-282,291,368-8.0%709,7003.23
2024-06-28693,481+10.2%951,9641.00
2024-06-14629,112+18.4%1,050,6511.00
2024-05-31531,315+5.0%3,899,7551.00
2024-05-15505,757+18.5%439,1641.15
2024-04-30426,770-4.5%246,3721.73
2024-04-15447,000-12.1%252,2331.77
2024-03-28508,695-31.6%317,3231.60
2024-03-15743,951+16.9%400,4361.86
2024-02-29636,226+10.7%319,9331.99
2024-02-15574,980+4.2%427,5931.34
2024-01-31551,582-11.2%514,9101.07
2023-12-29640,062-15.8%673,1801.00
2023-12-15760,328+14.7%482,5391.58
2023-11-30662,917-12.7%310,5762.13
2023-11-15759,723-13.3%483,1471.57
2023-10-31876,005+0.2%248,7263.52
2023-10-13874,580-19.7%307,3412.85
2023-09-291,089,559+9.2%234,0384.66
2023-09-15998,133-17.1%385,6902.59
2023-08-311,203,266+4.4%294,2044.09
2023-08-151,152,266-5.8%239,9804.80
2023-07-311,223,009-11.1%221,1405.53
2023-07-141,376,133+4.6%285,1704.83
2023-06-301,316,048+220.6%1,390,9061.00
2023-06-15410,496-4.2%331,8271.24
2023-05-31428,286-11.7%426,5241.00
2023-05-15484,869+34.2%348,1341.39

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 23 October 2026, the short share of OSG volume is 36.7%, down 17.0 points over the last five sessions. Over the last 30 readings it ranged from 23.6% (15 September 2026) to 63.2% (24 September 2026). The latest reading is 8.8 points below the 30-session average of 45.5%, on 90K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-2333K90K36.7%665
2026-10-2213K45K27.7%0
2026-10-2132K70K45.2%0
2026-10-2026K48K54.6%0
2026-10-1928K63K44.0%3
2026-10-1652K97K53.7%0
2026-10-1572K128K55.7%0
2026-10-1448K79K60.4%0
2026-10-1328K68K41.2%0
2026-10-1225K89K28.2%0
2026-10-0943K76K56.9%0
2026-10-0891K292K31.1%5,747
2026-10-0771K166K42.7%0
2026-10-0658K114K51.0%0
2026-10-0582K217K37.8%2,403
2026-10-02159K257K61.8%0
2026-10-01102K185K55.0%0
2026-09-3054K128K42.4%0
2026-09-2940K84K47.4%0
2026-09-2881K168K48.2%0
2026-09-2560K160K37.3%0
2026-09-24207K328K63.2%0
2026-09-2368K122K55.5%0
2026-09-2264K130K49.3%12
2026-09-2141K125K32.5%0
2026-09-1856K113K49.2%0
2026-09-1755K190K28.9%0
2026-09-1669K129K53.7%0
2026-09-1580K341K23.6%0
2026-09-1469K137K50.7%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 28 September 2026, the fails-to-deliver balance in OSG is 7,793 shares, up 5,571 shares over the last settlement date. Over the last 30 readings it ranged from 3 shares (23 April 2026) to 24,671 shares (12 March 2026).

SettlementShares failedPriceValue
2026-09-287,793$4.19$33K
2026-09-252,222$4.14$9K
2026-09-227$4.42$31
2026-09-157$5.00$35
2026-09-1185$4.99$424
2026-09-10107$5.01$536
2026-09-016,709$4.36$29K
2026-08-272,157$4.60$10K
2026-08-202,000$4.54$9K
2026-08-192,000$4.59$9K
2026-07-22285$5.95$2K
2026-07-0825$6.35$159
2026-07-024,000$6.39$26K
2026-07-0146$6.24$287
2026-06-301,064$6.36$7K
2026-06-1020$5.55$111
2026-05-134$5.85$23
2026-05-0437$4.38$162
2026-04-289$4.53$41
2026-04-233$4.70$14
2026-04-2017$4.85$82
2026-03-312,387$4.61$11K
2026-03-173,886$5.18$20K
2026-03-164,676$5.12$24K
2026-03-13313$5.20$2K
2026-03-1224,671$5.22$129K
2026-03-1111,991$5.51$66K
2026-02-255,179$5.09$26K
2026-02-199,019$5.79$52K
2026-02-1323,838$5.78$138K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for OSG in the last 90 days. The most recent filings are listed below. Latest filing: Trick David (Exec VP, CFO & Treasurer) on 2026-10-03.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-03Trick DavidExec VP, CFO & TreasurerTax withholding3K$4.60$14K267K
2026-10-03Trick DavidExec VP, CFO & TreasurerExercise or conversion3Kprice not stated in the filingnot stated270K
2026-10-03Smith R SharonExec VP & Group COOTax withholding3K$4.60$12K156K
2026-10-03Smith R SharonExec VP & Group COOExercise or conversion3Kprice not stated in the filingnot stated159K
2026-10-03LeBlanc ClaudeChief Executive OfficerTax withholding12K$4.60$54K1.1M
2026-10-03LeBlanc ClaudeChief Executive OfficerExercise or conversion12Kprice not stated in the filingnot stated1.1M
2026-10-03LeBlanc ClaudeChief Executive OfficerTax withholding8K$4.60$39K1.1M
2026-10-03LeBlanc ClaudeChief Executive OfficerExercise or conversion15Kprice not stated in the filingnot stated1.1M
2026-07-09Smith R SharonExec VP & Group COOTax withholding5K$6.08$28K156K
2026-07-09Smith R SharonExec VP & Group COOExercise or conversion12Kprice not stated in the filingnot stated161K
2026-07-09Trick DavidExec VP, CFO & TreasurerTax withholding7K$6.08$41K267K
2026-07-09Trick DavidExec VP, CFO & TreasurerExercise or conversion13Kprice not stated in the filingnot stated274K
2026-07-09LeBlanc ClaudeChief Executive OfficerTax withholding22K$6.08$132K1.1M
2026-07-09LeBlanc ClaudeChief Executive OfficerExercise or conversion39Kprice not stated in the filingnot stated1.1M
2026-03-10Ahn Cristina E.Chief Accounting OfficerTax withholding203$4.90$995632
2026-03-10Ahn Cristina E.Chief Accounting OfficerExercise or conversion835price not stated in the filingnot stated835
2026-03-03Trick DavidExec VP, CFO & TreasurerTax withholding2K$5.60$10K261K
2026-03-03Trick DavidExec VP, CFO & TreasurerExercise or conversion2K$0.00$0262K
2026-03-03Smith R SharonExec VP & Group COOTax withholding2K$5.60$9K149K
2026-03-03Smith R SharonExec VP & Group COOExercise or conversion2K$0.00$0151K
2026-03-03LeBlanc ClaudeChief Executive OfficerTax withholding11K$5.60$60K1.0M
2026-03-03LeBlanc ClaudeChief Executive OfficerExercise or conversion25K$0.00$01.1M
2026-01-02LeBlanc ClaudeChief Executive OfficerBuy12K$7.59$91K1.0M
2025-09-30Trick DavidExec VP, CFO & TreasurerTax withholding23K$8.34$190K261K
2025-09-30Trick DavidExec VP, CFO & TreasurerExercise or conversion43K$0.00$0283K
2025-09-30Smith R SharonExec VP & Group COOExercise or conversion3K$0.00$0152K
2025-09-30Smith R SharonExec VP & Group COOTax withholding3K$8.34$27K149K
2025-09-29Trick DavidExec VP, CFO & TreasurerConversion165K$0.00$0321K
2025-09-29Trick DavidExec VP, CFO & TreasurerTax withholding81K$9.72$783K241K
2025-09-29Smith R SharonExec VP & Group COOTax withholding71K$9.72$687K149K
2025-09-29Smith R SharonExec VP & Group COOConversion145K$0.00$0220K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

2 holders report 5% or more of OSG in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.6% of the class (3,535,664 shares), filed 2025-10-17 for an event on 2025-09-30.

FiledFormHolderSharesOf classEvent
2026-07-3113GVanguard Capital Managementinvestment adviser2.3M5.0%2026-06-30
2026-05-1113G/Ano. 1JANE STREET GROUP, LLCparent holding company771K1.7%2026-03-31
2026-05-1113G/Ano. 1Jane Street Capital, LLCbroker-dealer421K0.9%2026-03-31
2026-05-1113G/Ano. 1Jane Street Global Trading, LLCother entity351K0.8%2026-03-31
2026-05-1113G/Ano. 1Jane Street Options, LLCbroker-dealer1020.0%2026-03-31
2026-05-1113G/Ano. 1Western Standard LLCinvestment adviser, parent holding company2.2M5.0%2026-03-31
2026-03-2713G/Ano. 13The Vanguard Groupinvestment adviser00.0%2026-03-13
2025-11-1313G/Ano. 1SIG Brokerage, LPbroker-dealer, partnership1.0M2.2%2025-09-30
2025-11-1313G/Ano. 1G1 Execution Services, LLCbroker-dealer, other entity1.0M2.2%2025-09-30
2025-11-1313G/Ano. 1Susquehanna Securities, LLCbroker-dealer, other entity1.0M2.2%2025-09-30
2025-10-1713G/Ano. 4BlackRock, Inc.parent holding company3.5M7.6%2025-09-30
2025-10-0913G/Ano. 1Dimensional Fund Advisors LPinvestment adviser2.1M4.6%2025-09-30

13F holders

Tracked managers holding OSG at their latest 13F. JSON

5 of the 30 tracked managers held OSG at their latest 13F, $5.0M in total at quarter-end prices. Citadel Advisors is the largest at $2.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-30423K$2.6M0.00%-9K
AQR Capital Management2026-06-30230K$1.4M0.00%+180K
Renaissance Technologies2026-06-30117K$731K0.00%-111K
Millennium Management2026-06-3020K$122K0.00%-115K
D. E. Shaw & Co.2026-06-3012K$76K0.00%-657

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-30) Octave Specialty Group reported revenue of $49.7M, up 64.0% from the same quarter a year earlier, and net loss of $12.2M (-0.33 diluted EPS). In FY 2025 it reported and spent $29.9M on buybacks.

Debt
$155.5M
Equity
$698.8M
Total assets
$2.28B
Shares outstanding
45,051,486

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$49.7M-$12.2M-24.4%-0.33
Q1 FY 20262026-03-31$68.2M-$6.9M-10.0%-0.13
Q4 FY 2025derived2025-12-31$40.2M-$27.1M-67.4%n/a
Q3 FY 20252025-09-30$36.1M-$112.6M-312.3%-2.35
Q2 FY 20252025-06-30$30.3M-$73.0M-240.6%-1.51
Q1 FY 20252025-03-31$36.8M-$46.4M-126.2%-1.21
Q4 FY 20242024-12-31n/a-$548.3Mn/a-10.23
Q3 FY 20242024-09-30$23.1M-$27.5M-119.2%-0.63

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$143.4M-$259.1Mn/an/a$29.9Mn/a
FY 20242024-12-31$92.0M-$556.1Mn/an/a$11.7Mn/a
FY 20232023-12-31$51.3M$5.0M$200.0Mn/a$4.5Mn/a
FY 20222022-12-31$30.7M$522.1M$1.33Bn/a$14.2Mn/a
FY 20212021-12-31$26.0M-$17.0M-$131.0Mn/an/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-04 from the cover page.

What this page is

Octave Specialty Group in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Octave Specialty Group (OSG), SEC CIK 874501, listed on NYSE, classified by the SEC as surety insurance. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-28.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-31.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-06.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-03.JSON and CSV
Company record
EDGAR filing index for CIK 874501Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of OSG is sold short?
1,409,717 shares were held short at the 2026-09-30 settlement, 3.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is OSG's daily short volume?
On 2026-10-23, 33,117 of the 90,288 OSG shares reported to FINRA were sold short, 36.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does OSG have fails to deliver?
The SEC's latest file shows 7,793 OSG shares failed to deliver at settlement 2026-09-28. Fails are reported per settlement date and published twice a month with a lag.
Are OSG insiders buying or selling?
No open-market insider trades were reported for OSG in the last 90 days. The most recent filings are listed below. Latest filing: Trick David (Exec VP, CFO & Treasurer) on 2026-10-03.
Who owns 5% or more of OSG?
2 holders report 5% or more of OSG in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.6% of the class (3,535,664 shares), filed 2025-10-17 for an event on 2025-09-30.
What did OSG report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Octave Specialty Group reported revenue of $49.7M, up 64.0% from the same quarter a year earlier, and net loss of $12.2M (-0.33 diluted EPS). In FY 2025 it reported and spent $29.9M on buybacks.
Which tracked 13F managers own OSG?
5 of the 30 tracked 13F managers held OSG shares at their latest filing, $5.0M in all. The largest: Ken Griffin's Citadel Advisors (423K shares, $2.6M), Cliff Asness's AQR Capital Management (230K shares, $1.4M), Renaissance Technologies (117K shares, $731K), Izzy Englander's Millennium Management (20K shares, $122K), D. E. Shaw & Co. (12K shares, $76K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.