CSS LLC/IL

Q2 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
6/30/2026
Date filed
8/14/2026
Form type
13F-HR
Num holdings
1,001
Total value ($000)
$2,568,509
Net value change ($000)
+480,666 (23.0%)
New positions
166
Sold out positions
129
Turnover %
33.5%
Sector allocation + QoQ delta (equities-only)

Snapshot: Change Analysis

Compared to Q1 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
HPE 141,865 1902.7%
APO 66,526 408.4%
BAC 50,957 413.5%
SUPER MICRO COMPUTER INC 45,262 NEW
MCHP 42,958 NEW
BA 23,634 NEW
ALPHABET INC 13,382 NEW
SPY 12,896 NEW
KMI 11,025 95.4%
OCEANHAWK ACQUISITION CORP 10,282 NEW
Top Reduces (Value $000, Stocks/ETFs)
NEE -18,981 -69.7%
HOLX -8,917 -100.0%
IRHO -7,272 -100.0%
GLD -5,432 -100.0%
TRG LATIN AMER ACQUIS CORP -5,306 -100.0%
INFLECTION PT ACQUISIT CORP -4,105 -100.0%
BCSS -3,917 -100.0%
METALS ACQUISITION CORP II -3,778 -100.0%
FGMC -3,557 -100.0%
MOZAYYX ACQUISITION CORP -3,069 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 314,278 (12.2% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type