Position in CALX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$20,977,419
+$18,551,055 QoQ
Shares Held
428,198
+834.1% QoQ
Ownership
0.680%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CALX Over Time
Shares Held
Position Value (USD)
Derivatives in CALX
reported options exposure · as of Mar 31, 2026CallValue
$1,430,508
CallShares
29,200
PutValue
$293,940
PutShares
6,000
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 Software - Infrastructure
Technology · as of Mar 31, 2026CITADEL ADVISORS LLC holds $5,585,865,680 across 118 Software - Infrastructure names. CALX ranks #37 (0.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MSFT |
Microsoft Corp
|
2,638,124 | $976,554,360 | |
| 2 | NET |
Cloudflare, Inc.
|
1,941,142 | $400,535,239 | |
| 3 | XYZ |
Block, Inc.
|
6,287,222 | $378,365,019 | |
| 4 | ORCL |
Oracle Corp
|
2,302,838 | $338,770,498 | |
| 5 | PLTR |
Palantir Technologies Inc.
|
2,015,600 | $294,841,967 | |
| 6 | PANW |
Palo Alto Networks Inc
|
1,823,683 | $292,372,858 | |
| 7 | OKTA |
Okta, Inc.
|
3,401,709 | $267,748,514 | |
| 8 | TWLO |
Twilio Inc
|
1,930,352 | $242,876,887 |
All Filings in CALX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $20,977,419 | 428,198 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $1,430,508 | 29,200 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $293,940 | 6,000 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $1,016,256 | 19,200 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $2,426,364 | 45,841 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $222,306 | 4,200 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $1,804,278 | 29,400 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $883,728 | 14,400 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $4,032,315 | 65,705 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $1,398,897 | 26,300 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $1,228,689 | 23,100 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $14,664,908 | 275,708 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $2,597,645 | 73,297 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $896,632 | 25,300 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $1,506,200 | 42,500 | Call | Defined | 2025-05-15 | |
| 2024-12-31 | $1,000,769 | 28,700 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $2,824,470 | 81,000 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $2,284,368 | 65,511 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $4,321,206 | 111,400 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $6,904,232 | 177,990 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $1,249,038 | 32,200 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $1,310,910 | 37,000 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $6,007,049 | 169,547 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $1,491,603 | 42,100 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $1,044,540 | 31,500 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $1,011,380 | 30,500 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $6,429,657 | 193,898 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $790,614 | 18,096 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $7,187,005 | 164,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $738,361 | 16,900 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $715,104 | 15,600 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $13,109,139 | 285,976 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $293,376 | 6,400 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $5,910,092 | 118,415 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $134,757 | 2,700 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $673,785 | 13,500 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $7,886,625 | 147,166 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $594,849 | 11,100 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $2,090,010 | 39,000 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $2,258,190 | 33,000 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $766,416 | 11,200 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $10,158,638 | 148,453 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $1,999,278 | 32,700 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $11,927,680 | 195,088 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $3,429,954 | 56,100 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $10,162,999 | 297,686 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $1,382,670 | 40,500 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $1,211,970 | 35,500 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $1,350,248 | 31,467 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $1,437,485 | 33,500 | Call | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||