Spinnaker Investment Group, LLC
SEC Form 13F institutional filer · CIK 0001911067
13F-HR · 71 reported holdings · 2026-03-31
Reported long-US-equity value
$0.18B
Top-10 concentration
81.3%
Spinnaker Investment Group, LLC — $185M AUM allocation strategy
Spinnaker Investment Group, LLC files SEC Form 13F and reports $185M of long US equity value across 71 reported holdings for 2026-03-31.
Its largest sector bet is Financials 52.2%, followed by Information Technology 18.8% and Industrials 9.0%.
The top 10 holdings account for 81% 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.
Spinnaker Investment Group, LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$185M
total across 71 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
81% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$XLU +5.78K sh · +$362K+$BRK.B +5.41K sh · +$2.46M+$XLV +3.96K sh · +$440K
Biggest trims (shares)
−$SCHW −251K sh · −$1.45M−$USB −39K sh · −$1.96M−$IVV −24.9K sh · −$1.93M
Exited to nil (held last quarter, gone now)
$NFLX ($251K last qtr)$NOW ($242K last qtr)$CRWD ($232K last qtr)$LOW ($224K last qtr)$WFC ($204K 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)
- Investment Banking & Brokerage43.4%—
- Aerospace & Defense9.0%—
- Systems Software7.9%—
- Technology Hardware, Storage & Peripherals5.9%—
- Diversified Banks5.2%—
- Semiconductors5.1%—
- Multi-Sector Holdings2.8%—
- Multi-Utilities1.0%—
- Other holdings19.8%—
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
8 of 8 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $SCHW | Charles Schwab Corporation | 2.71M | $80.2M | -251K | 43.4% |
| $HONA | Honeywell Aerospace Inc | 23 | $16.5M | -10 | 9.0% |
| $MSFT | Microsoft Corporation | 39.5K | $14.6M | -16.3K | 7.9% |
| $AAPL | Apple Inc | 42.4K | $10.8M | -2.54K | 5.8% |
| $USB | U.S. Bancorp | 162K | $8.07M | -39K | 4.4% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 10.9K | $5.23M | +5.41K | 2.8% |
| $AVGO | Broadcom Inc | 16.2K | $5.01M | -1.24K | 2.7% |
| $NVDA | NVIDIA Corporation | 24.6K | $4.29M | -1.33K | 2.3% |
…and 63 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
← All 13F filers·← QuantOrb.pro
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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