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O'Brien Wealth Partners LLC

Location
Waltham, MA
Portfolio Value
Micro $39,300,853
Diversification
Diversified
Filing Date
Global Rank
#7,235 / 8,662 ▼ 494 · as of Dec 2025
Top Industry
Consumer Electronics 32.0%
3Y Alpha vs SPY
-7.4%
Period ended 6 months ago
Filed Jan 22, 2026 · 6mo
24 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
+45.8%
SPY
+76.0%
Annualised alpha
-7.3%
Max drawdown
−22.8%

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

57 positions · as of Dec 31, 2025 · Δ vs Sep 30, 2025
Top Position
31.5%
−5.4 pts
Top 5
55.0%
−3.0 pts
Top 10
68.5%
−1.1 pts
HHI
1,229
Mar 2023 → Dec 2025 · range 1,224 – 3,448
Diversified−329

Portfolio Trend

24 quarters · across all stocks

Sector Breakdown

As of Dec 31, 2025
Sector % Portfolio Value
Technology 47.4% $18,632,643
Healthcare 16.1% $6,339,401
Consumer Cyclical 14.6% $5,745,106
Industrials 7.1% $2,790,439
Financial Services 6.2% $2,436,361
Communication Services 4.3% $1,697,785
Unclassified 1.5% $580,313
Consumer Defensive 1.4% $550,214
Basic Materials 1.3% $527,387
Utilities 0.0% $1,204

Last Quarter's Activity

Export CSV
Dec 31, 2025 vs Sep 30, 2025

Added To

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

Trimmed

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

New Positions

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

Sold Out

Positions the filer fully exited
8 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
57 positions · $39,300,853 total · as of Dec 31, 2025
Showing 1–50 of 57 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History