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Roger Wittlin Investment Advisory, LLC

Registered adviser
Location
San Francisco, CA
Portfolio Value
Micro $79,601,608
Diversification
Moderately concentrated
Filing Date
Global Rank
#7,779 / 8,807 ▲ 325 · as of Jun 2026
Top Industry
Software - Infrastructure 48.2%
Period ended 20 days ago
Filed Oct 19, 2026 · 1d
20 quarters · since Dec 2021

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Registered adviser
Form ADV roster, Oct 1, 2026
Form ADV adviser
CRD 292577
Roster of Oct 1, 2026
Regulatory AUM
$348,469,672
Main clients
Individuals and high net worth (86% of AUM)
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Oct 2026 $348,469,672 Individuals and high net worth (86%)
Apr 2025 to Mar 2026 $363,000,000 Other (52%)
Mar 2024 to Mar 2025 $318,000,000 Other (56%)
May 2023 to Feb 2024 $312,000,000 Other (52%)
Apr 2023 $312,000,000 Other (52%)
Apr 2022 to Mar 2023 $384,834,677 Diversified
1 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style
Concentrated
The top 10 positions are 91.7% of the book (60%+)
Turnover
Low turnover
11.7% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 14.3 quarters (12+)

Closest benchmark: every 13F filer's combined book, active share 93.6%; sector active share 87.8% against the combined 13F book's sector weights.

Over time 19 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

46 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026
Top Position
40.5%
+8.1 pts
Top 5
74.3%
−1.1 pts
Top 10
92.5%
+0.8 pts
HHI
2,017
Dec 2023 → Sep 2026 · range 1,526 – 2,017
Moderately concentrated+170

Portfolio Trend

20 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026
Sector % Portfolio Value
Unclassified 97.4% $77,531,050
Technology 1.5% $1,204,711
Communication Services 0.7% $585,263
Real Estate 0.4% $280,584
Financial Services 0.0% $0

Last Quarter's Activity

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Sep 30, 2026 vs Jun 30, 2026

Added To

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

Trimmed

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

New Positions

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

Sold Out

Positions the filer fully exited
2 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
46 tracked positions · $79,601,608 total · filing declares 46 positions · $128,262,891 · as of Sep 30, 2026
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.