CSS LLC/IL
CIK 0001103646 · CHICAGO, IL · Quarter end: 2026-06-30 · Filed on: 2026-08-14 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$2.57B
2026 Q2
Positions
1,001
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
35.0%
Est. Net Flow (Q)
—
2026 Q2
Top Holdings
LITE 0.5 06-15-28
LUMENTUM HLDGS INC
9.6%
HPE 7.625 09-01-27
HEWLETT PACKARD ENTERPRISE C
5.8%
ECHO 3.875 11-30-30
ECHOSTAR CORP
5.4%
APO 6.75 07-31-26
APOLLO GLOBAL MGMT INC
3.2%
BAC 7.25 PERP L
BANK OF AMER CORP
2.5%
WOLF 2.5 06-15-31
WOLFSPEED INC
2.1%
SMCI 7 06-01-29
SUPER MICRO COMPUTER INC
1.8%
CORZW
CORE SCIENTIFIC INC NEW
1.7%
New / Increased
No prior quarter data
Reduced / Exited
No prior quarter data
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.