AI Portfolio Summary
In 2025 Q4, CSS LLC/IL maintained a portfolio of 1307 distinct positions. The most significant new addition to the portfolio was WESTERN DIGITAL CORP, which now represents 2.53% of the total fund value. The fund also reduced its exposure to WAYFAIR INC by 70.2%.
Total Positions
1307
Quarter
2025 Q4
Top Holding
N/A (5.6%)
Top 10 Concentration
29.8%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 1307
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
N/A
ECHOSTAR CORP
|
—
|
Bond/Debt | 5.62% | 1.59% |
#1
12
Prev: #13
|
7.2 | 23,417,044 | 162.5% |
P
S
|
37,825,753 | $126,549,196 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
LUMENTUM HLDGS ...
|
—
|
Bond/Debt | 5.11% | 2.22% |
#2
4
Prev: #6
|
5.5 | 5,000,000 | 14.1% |
P
S
|
40,464,000 | $114,968,502 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
JAZZ INVESTMENT...
|
—
|
Bond/Debt | 3.35% | 2.97% |
#3
2
Prev: #5
|
2.8 | 2,500,000 | 4.0% |
P
S
|
65,074,000 | $75,403,847 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
IONIS PHARMACEU...
|
—
|
Bond/Debt | 2.73% | 3.44% |
#4
1
Prev: #3
|
1.6 | -17,590,000 | -28.2% |
P
S
|
44,792,000 | $61,521,858 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
PUT
WESTERN DIGITAL...
|
—
|
PUT Option | 2.53% | — |
#5
Prev: #—
|
5.0 | 330,000 | no change |
NEW
|
330,000 | $56,849,100 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
PEABODY ENGR CO...
|
—
|
Bond/Debt | 2.26% | 1.73% |
#6
3
Prev: #9
|
2.9 | 4,750,000 | 18.6% |
P
S
|
30,268,000 | $50,880,387 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
SPY
CALL
SPDR S&P 500 ET...
|
CALL Option | 2.20% | 1.31% |
#7
9
Prev: #16
|
3.9 | 28,700 | 65.2% |
P
S
|
72,700 | $49,575,584 | 2014 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
LIVE NATION ENT...
|
—
|
Bond/Debt | 2.12% | 3.29% |
#8
4
Prev: #4
|
0.8 | -12,500,000 | -27.6% |
P
S
|
32,756,000 | $47,635,184 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
EQUINOX GOLD CO...
|
—
|
Bond/Debt | 1.97% | 1.63% |
#9
2
Prev: #11
|
1.8 | no change | no change |
P
S
|
18,936,000 | $44,411,149 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
MSTR
PUT
STRATEGY INC
|
PUT Option | 1.90% | 4.23% |
#10
9
Prev: #1
|
1.3 | -11,300 | -3.9% |
P
S
|
281,400 | $42,758,730 | 2021 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
LUMENTUM HLDGS ...
|
—
|
Bond/Debt | 1.77% | 1.46% |
#11
4
Prev: #15
|
0.7 | -6,000,000 | -44.4% |
P
S
|
7,500,000 | $39,895,320 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
TRANSOCEAN INC
|
—
|
Unknown | 1.67% | 1.23% |
#12
5
Prev: #17
|
2.7 | 4,511,000 | 19.8% |
P
S
|
27,333,000 | $37,621,141 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
BRIDGEBIO PHARM...
|
—
|
Bond/Debt | 1.33% | 0.07% |
#13
212
Prev: #225
|
3.5 | 25,000,000 | 1666.7% |
P
S
|
26,500,000 | $29,828,533 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
BAC/PRL
BANK AMERICA CO...
|
Preferred | 1.31% | 0.21% |
#14
73
Prev: #87
|
3.5 | 20,048 | 554.9% |
P
S
|
23,661 | $29,526,621 | 2018 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GME
PUT
GAMESTOP CORP N...
|
PUT Option | 1.30% | 1.95% |
#15
8
Prev: #7
|
1.0 | -132,500 | -8.3% |
P
S
|
1,457,500 | $29,266,600 | 2019 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GLD
PUT
SPDR GOLD TR
|
PUT Option | 1.09% | 0.56% |
#16
20
Prev: #36
|
3.4 | 27,000 | 77.1% |
P
S
|
62,000 | $24,571,220 | 2013 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SPY
PUT
SPDR S&P 500 ET...
|
PUT Option | 0.99% | 1.88% |
#17
9
Prev: #8
|
0.4 | -30,500 | -48.4% |
P
S
|
32,500 | $22,162,400 | 2014 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
GUARDANT HEALTH...
|
—
|
Bond/Debt | 0.89% | — |
#18
Prev: #—
|
3.9 | 11,000,000 | no change |
NEW
|
11,000,000 | $20,126,260 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
VOO
VANGUARD INDEX ...
|
ETF | 0.88% | 0.77% |
#19
4
Prev: #23
|
2.4 | 3,660 | 13.1% |
P
S
|
31,650 | $19,848,664 | 2023 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AAL
PUT
AMERICAN AIRLS ...
|
PUT Option | 0.83% | 0.70% |
#20
9
Prev: #29
|
0.8 | -171,500 | -12.4% |
P
S
|
1,211,900 | $18,578,427 | 2014 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RSP
INVESCO EXCHANG...
|
Unknown | 0.81% | 0.76% |
#21
3
Prev: #24
|
2.3 | 5,370 | 6.0% |
P
S
|
94,842 | $18,167,934 | 2023 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CORZW
CORE SCIENTIFIC...
|
Unknown | 0.76% | 0.53% |
#22
16
Prev: #38
|
3.3 | 1,012,765 | 99.4% |
P
S
|
2,031,951 | $17,190,305 | 2024 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
IAU
ISHARES GOLD TR
|
ETF | 0.71% | 0.60% |
#23
10
Prev: #33
|
2.3 | 12,020 | 6.5% |
P
S
|
197,260 | $16,011,594 | 2023 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
MANNKIND CORP
|
—
|
Bond/Debt | 0.71% | 0.71% |
#24
4
Prev: #28
|
1.3 | no change | no change |
P
S
|
13,980,000 | $15,906,444 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
SNOWFLAKE INC
|
—
|
Bond/Debt | 0.69% | 0.74% |
#25
2
Prev: #27
|
0.8 | -466,000 | -4.3% |
P
S
|
10,393,000 | $15,445,204 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
AKAMAI TECHNOLO...
|
—
|
Bond/Debt | 0.68% | 0.30% |
#26
35
Prev: #61
|
3.3 | 8,469,000 | 120.4% |
P
S
|
15,505,000 | $15,353,113 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
COLLEGIUM PHARM...
|
—
|
Bond/Debt | 0.66% | — |
#27
Prev: #—
|
3.8 | 10,500,000 | no change |
NEW
|
10,500,000 | $14,799,771 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
VENTAS RLTY LTD...
|
—
|
Bond/Debt | 0.65% | 0.17% |
#28
77
Prev: #105
|
3.3 | 7,340,000 | 246.6% |
P
S
|
10,317,000 | $14,573,361 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
SOFI
PUT
SOFI TECHNOLOGI...
|
PUT Option | 0.63% | 0.68% |
#29
1
Prev: #30
|
0.8 | -30,000 | -5.2% |
P
S
|
544,900 | $14,265,482 | 2021 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
STRIDE INC
|
—
|
Bond/Debt | 0.63% | 3.46% |
#30
28
Prev: #2
|
0.3 | -16,974,000 | -62.2% |
P
S
|
10,300,000 | $14,063,919 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
MARA HOLDINGS I...
|
—
|
Bond/Debt | 0.61% | 0.87% |
#31
9
Prev: #22
|
2.2 | 1,000,000 | 6.2% |
P
S
|
17,000,000 | $13,765,954 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
BEYOND MEAT INC
|
—
|
Bond/Debt | 0.58% | — |
#32
Prev: #—
|
3.7 | 17,118,000 | no change |
NEW
|
17,118,000 | $13,109,855 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
HAEMONETICS COR...
|
—
|
Bond/Debt | 0.58% | — |
#33
Prev: #—
|
3.7 | 12,500,000 | no change |
NEW
|
12,500,000 | $12,983,412 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
PPL CAP FDG INC
|
—
|
Bond/Debt | 0.56% | — |
#34
Prev: #—
|
3.7 | 11,464,000 | no change |
NEW
|
11,464,000 | $12,586,268 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
FLUENCE ENERGY ...
|
—
|
Bond/Debt | 0.55% | — |
#35
Prev: #—
|
3.7 | 10,140,000 | no change |
NEW
|
10,140,000 | $12,275,504 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
WAYFAIR INC
|
—
|
Bond/Debt | 0.52% | 1.60% |
#36
24
Prev: #12
|
0.2 | -12,067,000 | -70.2% |
P
S
|
5,124,000 | $11,767,502 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
KIM/PRN
KIMCO RLTY CORP
|
Unknown | 0.52% | 0.75% |
#37
11
Prev: #26
|
0.2 | -76,099 | -27.5% |
P
S
|
200,173 | $11,655,173 | 2024 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RKLB
PUT
ROCKET LAB CORP
|
PUT Option | 0.47% | 0.33% |
#38
14
Prev: #52
|
1.2 | no change | no change |
P
S
|
151,600 | $10,575,616 | 2021 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
CIPHER MINING I...
|
—
|
Bond/Debt | 0.46% | 0.40% |
#39
6
Prev: #45
|
1.2 | no change | no change |
P
S
|
3,000,000 | $10,457,364 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
SWZ
TOTAL RETURN SE...
|
Unknown | 0.46% | 0.15% |
#40
80
Prev: #120
|
3.2 | 1,114,324 | 204.6% |
P
S
|
1,659,007 | $10,319,024 | 2013 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
WOLFSPEED INC
|
—
|
Bond/Debt | 0.45% | — |
#41
Prev: #—
|
3.7 | 6,822,000 | no change |
NEW
|
6,822,000 | $10,087,596 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
FORD MTR CO
|
—
|
Bond/Debt | 0.43% | 0.07% |
#42
163
Prev: #205
|
3.2 | 7,731,000 | 483.2% |
P
S
|
9,331,000 | $9,673,625 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
SOFI
SOFI TECHNOLOGI...
|
Financial Services | 0.42% | — |
#43
Prev: #—
|
3.7 | 358,863 | no change |
NEW
|
358,863 | $9,395,033 | 2021 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SATS
PUT
ECHOSTAR CORP
|
PUT Option | 0.41% | 0.27% |
#44
23
Prev: #67
|
2.2 | 6,250 | 7.9% |
P
S
|
85,200 | $9,261,240 | 2024 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
CELCUITY INC
|
—
|
Bond/Debt | 0.41% | — |
#45
Prev: #—
|
3.7 | 4,210,000 | no change |
NEW
|
4,210,000 | $9,147,737 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
MARA HOLDINGS I...
|
—
|
Bond/Debt | 0.40% | — |
#46
Prev: #—
|
3.7 | 11,500,000 | no change |
NEW
|
11,500,000 | $9,024,130 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
PTC THERAPEUTIC...
|
—
|
Bond/Debt | 0.40% | 0.92% |
#47
26
Prev: #21
|
0.2 | -10,000,000 | -62.5% |
P
S
|
6,000,000 | $8,914,140 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
N/A
STRATEGY INC
|
—
|
Bond/Debt | 0.39% | 0.95% |
#48
28
Prev: #20
|
0.2 | -4,012,000 | -33.7% |
P
S
|
7,885,000 | $8,758,997 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
STEW
SRH TOTAL RETUR...
|
Financial Services | 0.38% | 0.38% |
#49
2
Prev: #47
|
0.7 | 180 | 0.0% |
P
S
|
461,965 | $8,564,831 | 2013 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
SUPER MICRO COM...
|
—
|
Bond/Debt | 0.38% | 0.18% |
#50
47
Prev: #97
|
3.2 | 5,500,000 | 137.5% |
P
S
|
9,500,000 | $8,503,678 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) |
Showing 1-50 of 1307 holdings