CUSTOM INDEX SYSTEMS, LLC logo

CUSTOM INDEX SYSTEMS, LLC

Private Equity

CUSTOM INDEX SYSTEMS, LLC is a Private Equity based in Austin, TX led by Sidney Wilbert Vanloh, reporting $497.2M in AUM as of Q3 2025 with 34% ETF concentration.

CEOSidney Wilbert Vanloh
Portfolio Value
$337.3M
Positions
262
Top Holding
AAPL at 4.23%
Last Reported
Q3 2025
Address500 West 2nd Street, Suite 1900, Austin, TX, 78701, United States

Top Holdings

Largest long holdings in CUSTOM INDEX SYSTEMS, LLC's portfolio (24.4% of total portfolio)

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HoldingSectorPositionWeightTradedOwnership
1
Apple logo
Apple
AAPL
Consumer Electronics
Technology
$14.3M
4.23%
+$1.6M
Bought
0.00%
56.0K shares
2
Nvidia logo
Nvidia
NVDA
Semiconductors
Technology
$11.3M
3.35%
+$2.5M
Bought
0.00%
60.6K shares
ETF
ETF
$9.7M
2.87%
+$4.6M
Bought
20.7K shares
ETF
ETF
$7.5M
2.22%
+$2.7M
Bought
110.6K shares
ETF
ETF
$7.2M
2.13%
+$3.6M
Bought
59.6K shares
ETF
ETF
$6.9M
2.06%
+$2.5M
Bought
150.9K shares
Software - Infrastructure
Technology
$6.9M
2.06%
+$2.2M
Bought
0.00%
13.4K shares
ETF
ETF
$6.8M
2.03%
+$3.2M
Bought
33.6K shares
ETF
ETF
$6.0M
1.77%
+$3.2M
Bought
18.7K shares
ETF
ETF
$5.8M
1.71%
+$2.7M
Bought
198.0K shares

Changes

Portfolio activity, position movements, and quarter-over-quarter changes in CUSTOM INDEX SYSTEMS, LLC's latest filing

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Market Value
$337.3M
Prior: $209.3M
Q/Q Change
+61.16%
+$128.0M
Net Flows % of MV
+30.82%
Turnover Ratio
22.07%
New Purchases
37 stocks
$22.7M
Added To
163 stocks
+$99.8M
Sold Out Of
22 stocks
$12.5M
Reduced Holdings
27 stocks
-$6.0M

Increased Positions

PositionShares Δ
New
New
New
New
New

Decreased Positions

PositionShares Δ
Sold
2
MPLX logo
MPLX
MPLX
Sold
Sold
Sold
Sold

Analytics

Portfolio insights and performance metrics for CUSTOM INDEX SYSTEMS, LLC

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Sector Allocation

ETF: 34.30%ETFTechnology: 21.30%TechnologyIndustrials: 6.80%Financial Services: 6.60%Consumer Cyclical: 6.20%Communication Services: 5.40%Healthcare: 3.50%Utilities: 3.50%Consumer Defensive: 3.10%Real Estate: 2.30%Energy: 2.10%Basic Materials: 0.60%
ETF
34.30%
Technology
21.30%
Industrials
6.80%
Financial Services
6.60%
Consumer Cyclical
6.20%
Communication Services
5.40%
Healthcare
3.50%
Utilities
3.50%
Consumer Defensive
3.10%
Real Estate
2.30%
Energy
2.10%
Basic Materials
0.60%

Market Cap Distribution

Mega Cap (> $200B): 23.17%Mega Cap (> $200B)Large Cap ($10B - $200B): 29.62%Large Cap ($10B - $200B)Mid Cap ($2B - $10B): 7.84%Small Cap ($300M - $2B): 1.14%N/A (ETF or Unknown): 38.23%N/A (ETF or Unknown)
Mega Cap (> $200B)
23.17%
Large Cap ($10B - $200B)
29.62%
Mid Cap ($2B - $10B)
7.84%
Small Cap ($300M - $2B)
1.14%
N/A (ETF or Unknown)
38.23%

Portfolio Concentration

Top 10 Holdings %
24.43%
Top 20 Holdings %
37.52%
Top 50 Holdings %
58.01%
Top 100 Holdings %
77.39%

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