CBOO

Calamos Bitcoin STR A/p-OctETF$24.65 0.04%
UnclassifiedCUSIP 12811T613· EOD Sep 8, 2026

Among active 13F managers last quarter, 1 added and 2 reduced; the largest holder to move was Calamos Advisors LLC (−4.5%).

Tracked 13F holders
7
3 in Q2 2026 filings
13F value (tracked)
$1.8M
13F moves · latest Q
1 added
2 reduced

Price & smart-money activity

$24.65 0.04%1Y -1.4%
$24.24$24.45$24.66$24.87$25.08Oct 2025DecFeb 2026AprJulSep42
Hover for who · click for detailEnd-of-day closing prices52w $24.30 – $25.02

Who owns CBOO?

7 tracked 13F filers · ranked by shares held

7 tracked 13F filers disclose a position in CBOO as of the latest SEC 13F filings, a combined $1.8M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Calamos Advisors LLC24K
$585K
−4.5%
Reduced · −1K sh
Q2 2026
2Jane Street Group, LLC21K
$507K
−33%
Reduced · −10K sh
Q1 2026
3Rooted Wealth Advisors, Inc.13K
$328K
Held
Q2 2026
4Harbour Investments, Inc.7K
$162K
−8.6%
Reduced · −624 sh
Q1 2026
5Ankerstar Wealth, LLC6K
$152K
−7.1%
Reduced · −473 sh
Q2 2026
6UBS Group AG3K
$62K
New
+3K sh
Q1 2026
7Burkett Financial Services, LLC968
$24K
+2.5%
Added · +24 sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is CBOO being bought or sold by institutions?

Last quarter, 1 fund added to an existing position in CBOO, while 2 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Added
1
added to an existing position
Reduced
2
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own CBOO also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA3 funds$1.5B
Apple IncAAPL3 funds$1.3B
Microsoft CorpMSFT3 funds$810.5M
Amazon.com IncAMZN3 funds$753.5M
Alphabet Inc-CL AGOOGL3 funds$741.5M
Meta Platforms Inc-Class AMETA3 funds$381.1M
Eli Lilly & CoLLY3 funds$365.0M
Tesla IncTSLA3 funds$328.6M
JPMorgan Chase & CoJPM3 funds$251.7M
Visa Inc-Class A SharesV3 funds$234.9M
Caterpillar IncCAT3 funds$186.7M
Johnson & JohnsonJNJ3 funds$184.6M

Ranked by how many of CBOO's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in CBOO.

Institutional ownership over time

3 tracked filers in Q2 2026 filingsstill filing
047Q1 2025Q2 2025Q4 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $936K
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Share classes

Class13F holdersValue held
CAIEmc153 funds$516.8M
CAIQmc54 funds$115.9M
CAGEETF31 funds$20.7M
CPSMmc29 funds$27.3M
CPSJS&P 500 STR JULY29 funds$23.4M
CPNJmc29 funds$10.3M
CPSLLADDERED S&P 500 ETF28 funds$56.6M
CPSDS&P 500 STRUCTU28 funds$26.7M

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

0 most recent

No filings captured for this ticker in the live stream yet.

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Connected entities for CBOO

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Ask your agent what changed in CBOO

This ETF page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/CBOO/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CBOO.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + quarter-over-quarter ownership changes + end-of-day price history + the live filing stream, joined for CBOO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.