TRAPHAGEN INVESTMENT ADVISORS LLC
SEC Form 13F institutional filer · CIK 0002023380
13F-HR · 114 reported holdings · 2026-03-31
Reported long-US-equity value
$0.56B
Top-10 concentration
79.3%
TRAPHAGEN INVESTMENT ADVISORS LLC — $556M AUM allocation strategy
TRAPHAGEN INVESTMENT ADVISORS LLC files SEC Form 13F and reports $556M of long US equity value across 114 reported holdings for 2026-03-31.
Its largest sector bet is Financials 10.8%, followed by Information Technology 8.7% and Industrials 1.8%.
The top 10 holdings account for 79% of reported value — a conviction-weighted book concentrated in its best ideas. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
TRAPHAGEN INVESTMENT ADVISORS LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$556M
total across 114 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
79% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$SCHW +168K sh · +$5.08M+$IVV +4.14K sh · −$12.7M+$AAPL +2.89K sh · −$1.77M
Biggest trims (shares)
−$BLK −11.1K sh · −$174K−$FAST −2.73K sh · −$74.8K−$CMCSA −1.08K sh · −$43.3K
Exited to nil (held last quarter, gone now)
$ULTA ($351K last qtr)$UNH ($343K last qtr)$SPGI ($266K last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Technology Hardware, Storage & Peripherals6.4%—
- Financial Exchanges & Data4.2%—
- Investment Banking & Brokerage4.2%—
- Aerospace & Defense1.8%—
- Interactive Media & Services1.3%—
- Semiconductors1.2%—
- Systems Software1.0%—
- Asset Management & Custody Banks1.0%—
- Other holdings78.9%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
7 of 7 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AAPL | Apple Inc | 141K | $35.9M | +2.89K | 6.5% |
| $CME | CME Group Inc | 48.6K | $14.3M | +19 | 2.6% |
| $SCHW | Charles Schwab Corporation | 440K | $12.4M | +168K | 2.2% |
| $GS | Goldman Sachs Group Inc | 33.4K | $10.6M | -756 | 1.9% |
| $HONA | Honeywell Aerospace Inc | 14 | $10.1M | +0 | 1.8% |
| $ICE | Intercontinental Exchange Inc | 56.2K | $8.84M | -27 | 1.6% |
| $NVDA | NVIDIA Corporation | 39.7K | $6.93M | +528 | 1.2% |
…and 107 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
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How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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