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SpiderRock Advisors, LLC

Location
CHICAGO, IL
Portfolio Value
Mid $5,936,716,100
Diversification
Diversified
Reports for
BlackRock, Inc.
Filing Date
Global Rank
#524 / 7,314 ▲ 75 · as of Sep 2024
Top Industry
Consumer Electronics 21.0%
3Y Alpha vs SPY
-8.9%
Period ended 1 year ago
Filed Nov 1, 2024 · 1y
19 quarters · since Mar 2020

Clone Performance

Jul 2023–Apr 2025 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+3.6%
SPY
+19.4%
Annualised alpha
-8.9%
Max drawdown
−21.5%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 32% of reported value on average across 7 quarters.SpiderRock Advisors, LLC has stopped filing, so the simulation ends in Apr 2025 — where its last reported portfolio went stale — rather than trading that portfolio forward to today. Past performance does not predict future results.

Portfolio Concentration

483 tracked positions · as of Sep 30, 2024 · Δ vs Jun 30, 2024
Top Position
18.8%
−2.0 pts
Top 5
43.3%
−0.5 pts
Top 10
53.4%
+0.7 pts
HHI
570
Dec 2021 → Sep 2024 · range 461 – 3,311
Diversified−51

Portfolio Trend

19 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2024
Sector % Portfolio Value
Technology 41.9% $2,490,240,365
Unclassified 10.7% $634,634,790
Consumer Cyclical 9.8% $581,275,659
Financial Services 8.7% $517,430,843
Healthcare 7.8% $464,379,478
Consumer Defensive 7.1% $419,269,550
Industrials 5.6% $332,618,263
Communication Services 3.2% $187,623,887
Energy 2.2% $130,593,349
Utilities 1.4% $84,858,213
Basic Materials 1.3% $79,755,666
Real Estate 0.2% $14,036,037

Last Quarter's Activity

Export CSV
Sep 30, 2024 vs Jun 30, 2024

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
24 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
483 tracked positions · $5,936,716,100 total · filing declares 818 positions · $6,285,410,522 · as of Sep 30, 2024
Showing 1–50 of 483 positions by value · page 1 of 10
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.