Columbia Asset Management

Q3 2026 13F-HR Holdings

Location
Ann Arbor, MI
Holdings as of
9/30/2026
Date filed
10/19/2026
Form type
13F-HR
Num holdings
168
Total value ($000)
$575,925
Net value change ($000)
+691 (0.1%)
New positions
7
Sold out positions
8
Turnover %
1.4%
Sector allocation + QoQ delta (equities-only)
Prev filing: 7/21/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 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)
MSFT 11,825 35.5%
AAPL 6,596 12.0%
EXXONMOBIL HOLDINGS CORP 3,610 NEW
NVDA 1,393 20.7%
MRK 1,328 9.4%
CVX 1,286 22.2%
AMGN 938 12.1%
MDT 816 16.4%
PFE 719 15.7%
BP 590 12.7%
Top Reduces (Value $000, Stocks/ETFs)
CAT -4,281 -28.4%
GLW -3,149 -40.6%
GOOGL -2,350 -9.1%
AVGO -1,890 -11.0%
IBM -1,794 -22.5%
ERIE -1,490 -8.6%
CSCO -1,073 -10.6%
HD -910 -21.3%
MU -903 -17.4%
UPS -881 -22.6%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 603 (0.1% 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