CPSP

Calamos S&P 500 STR Alt AprETF$27.20 0.09%
UnclassifiedCUSIP 12811T753· EOD Sep 11, 2026

Among active 13F managers last quarter, 1 added and 1 reduced; the largest holder to move was Calamos Advisors LLC (−9.6%).

Tracked 13F holders
9
6 in Q2 2026 filings
13F value (tracked)
$13.2M
13F moves · latest Q
1 added
1 reduced

Price & smart-money activity

$27.20 0.09%1Y +10.0%
$24.14$24.96$25.79$26.61$27.44Apr 2025JulOctFeb 2026JunSep42
Hover for who · click for detailEnd-of-day closing prices52w $25.65 – $27.22

Who owns CPSP?

9 tracked 13F filers · ranked by shares held

9 tracked 13F filers disclose a position in CPSP as of the latest SEC 13F filings, a combined $13.2M 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 LLC356K
$9.6M
−9.6%
Reduced · −38K sh
Q2 2026
2Calamos Wealth Management LLC74K
$2.0M
+45%
Added · +23K sh
Q2 2026
3Commonwealth Equity Services, LLC17K
$443K
Held
Q1 2026
4Jim Saulnier & Associates, LLC13K
$343K
Held
Q2 2026
5Advisory Services Network, LLC11K
$280K
Held
Q1 2026
6TrustBank11K
$284K
Added
Added · +11K sh
Q2 2026
7Centaurus Financial, Inc.8K
$211K
Held
Q2 2026
8New England Capital Financial Advisors LLC566
$15K
Held
Q2 2026
9UBS Group AG547
$14K
+8.3%
Added · +42 sh
Q1 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 CPSP being bought or sold by institutions?

Last quarter, 1 fund added to an existing position in CPSP, while 1 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
1
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own CPSP also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA5 funds$1.7B
Apple IncAAPL5 funds$1.4B
Microsoft CorpMSFT5 funds$908.0M
Amazon.com IncAMZN5 funds$873.2M
Alphabet Inc-CL AGOOGL5 funds$821.6M
Eli Lilly & CoLLY5 funds$403.8M
JPMorgan Chase & CoJPM5 funds$302.3M
SS SPDR S&P 500 ETF Trust-USSPY5 funds$179.7M
Ishares Core S&P 500 ETFIVV5 funds$170.1M
Costco Wholesale CorpCOST5 funds$107.9M
Procter & Gamble CoPG5 funds$89.0M
Vanguard Total Stock MKT ETFVTI5 funds$84.0M

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

Institutional ownership over time

6 tracked filers in Q2 2026 filingsstill filing
0611Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $12.4M
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.

Keep exploring

Connected entities for CPSP

Browse more

Build

Ask your agent what changed in CPSP

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/CPSP/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CPSP.
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 CPSP. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.