Position in COST
as of Jun 30, 2026
· filed Jul 31, 2026
Position Value
$75,215,529
-$15,465,579 QoQ
Shares Held
80,404
-11.6% QoQ
Ownership
0.018%
of shares outstanding
% of Portfolio
0.43%
of 13F equity value
Holder Rank
#309
of 4,178 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in COST Over Time
Shares Held
Position Value (USD)
Derivatives in COST
reported options exposure · as of Jun 30, 2026CallValue
$1,309,658
CallShares
1,400
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Discount Stores
Consumer Defensive · as of Jun 30, 2026Calamos Advisors LLC holds $300,787,472 across 6 Discount Stores names. COST ranks #2 (25.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WMT |
Walmart Inc.
|
1,362,951 | $154,367,830 | |
| 2 | COST |
Costco Wholesale Corp /New
This page
|
80,404 | $75,215,529 | |
| 3 | DG |
Dollar General Corp
|
247,323 | $28,469,350 | |
| 4 | PSMT |
Pricesmart Inc
|
107,401 | $20,979,711 | |
| 5 | TGT |
Target Corp
|
94,383 | $12,327,363 | |
| 6 | DLTR |
Dollar Tree, Inc.
|
77,947 | $9,427,689 |
All Filings in COST
Export CSV
33 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $75,215,529 | 80,404 | Shares | Sole | 2026-07-31 | |
| 2026-06-30 | $1,309,658 | 1,400 | Call | Sole | 2026-07-31 | |
| 2026-03-31 | $1,594,288 | 1,600 | Call | Sole | 2026-05-04 | |
| 2026-03-31 | $90,681,108 | 91,006 | Shares | Sole | 2026-05-04 | |
| 2025-12-31 | $1,810,914 | 2,100 | Call | Sole | 2026-01-29 | |
| 2025-12-31 | $75,966,117 | 88,093 | Shares | Sole | 2026-01-29 | |
| 2025-09-30 | $1,851,260 | 2,000 | Call | Sole | 2025-10-20 | |
| 2025-09-30 | $88,517,996 | 95,630 | Shares | Sole | 2025-10-20 | |
| 2025-06-30 | $104,274,339 | 105,334 | Shares | Sole | 2025-08-08 | |
| 2025-06-30 | $989,940 | 1,000 | Call | Sole | 2025-08-08 | |
| 2025-03-31 | $472,890 | 500 | Call | Sole | 2025-04-29 | |
| 2025-03-31 | $99,578,338 | 105,287 | Shares | Sole | 2025-04-29 | |
| 2024-12-31 | $98,579,656 | 107,588 | Shares | Sole | 2025-01-24 | |
| 2024-09-30 | $95,519,870 | 107,747 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $92,434,712 | 108,748 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $81,255,993 | 110,910 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $74,106,521 | 112,269 | Shares | Sole | 2024-01-31 | |
| 2023-09-30 | $64,213,353 | 113,660 | Shares | Sole | 2023-10-26 | |
| 2023-06-30 | $59,105,509 | 109,784 | Shares | Sole | 2023-07-28 | |
| 2023-03-31 | $54,516,079 | 109,719 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $365,200 | 800 | Put | Sole | 2023-01-26 | |
| 2022-12-31 | $53,781,634 | 117,813 | Shares | Sole | 2023-01-26 | |
| 2022-09-30 | $63,774,396 | 135,038 | Shares | Sole | 2022-10-24 | |
| 2022-06-30 | $64,700,882 | 134,996 | Shares | Sole | 2022-08-01 | |
| 2022-03-31 | $89,817,052 | 155,973 | Shares | Sole | 2022-05-03 | |
| 2021-12-31 | $84,112,702 | 148,164 | Shares | Sole | 2022-02-01 | |
| 2021-09-30 | $65,420,866 | 145,590 | Shares | Sole | 2021-10-26 | |
| 2021-06-30 | $48,492,919 | 122,559 | Shares | Sole | 2021-07-22 | |
| 2021-03-31 | $38,124,941 | 108,162 | Shares | Sole | 2021-04-12 | |
| 2020-12-31 | $39,893,843 | 105,881 | Shares | Sole | 2021-01-27 | |
| 2020-09-30 | $40,693,650 | 114,630 | Shares | Sole | 2020-10-26 | |
| 2020-06-30 | $29,136,055 | 96,092 | Shares | Sole | 2020-07-27 | |
| 2020-03-31 | $30,679,702 | 107,599 | Shares | Sole | 2020-04-28 | |
| No filing history on record for this holder in this stock. | ||||||