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OLD SECOND NATIONAL BANK OF AURORA

Bank
Location
AURORA, IL
Portfolio Value
Small $305,512,690
Diversification
Diversified
Filing Date
Global Rank
#3,393 / 8,610 ▲ 19 · as of Mar 2026
Top Industry
Semiconductors 12.6%
3Y Alpha vs SPY
-0.4%
Period ended 4 months ago
Filed Apr 21, 2026 · 3mo
25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+71.7%
SPY
+73.3%
Annualised alpha
-0.4%
Max drawdown
−19.5%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

193 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
6.1%
−0.4 pts
Top 5
24.9%
−2.8 pts
Top 10
40.5%
−2.7 pts
HHI
249
Jun 2023 → Mar 2026 · range 213 – 283
Diversified−22

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Technology 27.0% $82,484,892
Financial Services 16.7% $50,887,790
Healthcare 10.5% $32,096,364
Industrials 9.6% $29,375,640
Consumer Cyclical 9.6% $29,220,873
Communication Services 6.6% $20,039,651
Energy 5.7% $17,499,984
Consumer Defensive 5.1% $15,456,509
Unclassified 3.7% $11,444,934
Utilities 3.0% $9,146,659
Real Estate 2.1% $6,359,612
Basic Materials 0.5% $1,499,782

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased
21 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
2 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
10 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
193 positions · $305,512,690 total · as of Mar 31, 2026
Showing 1–50 of 193 positions by value · page 1 of 4
Ticker Company Shares Value (USD) % of Portfolio History