Oakum Bay Capital LLC
SEC Form 13F institutional filer · CIK 0001571727
13F-HR · 26 reported holdings · 2026-03-31
Reported long-US-equity value
$0.08B
Top-10 concentration
94.9%
Oakum Bay Capital LLC — $84M AUM allocation strategy
Oakum Bay Capital LLC files SEC Form 13F and reports $84M of long US equity value across 26 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 48.0%, followed by Consumer Discretionary 36.4% and Real Estate 8.4%.
The top 10 holdings account for 95% 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.
Oakum Bay Capital LLC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$84M
total across 26 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
95% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$WY +43K sh · +$1.14M+$CSGP +35.5K sh · +$1.28M+$INVH +16K sh · +$312K
Biggest trims (shares)
−$DHI −51.6K sh · −$1.32M−$MU −38.3K sh · −$4.95M−$NEE −22K sh · −$195K
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)
- Semiconductors47.9%—
- Automobile Manufacturers25.8%—
- Homebuilding7.6%—
- Timber REITs4.6%—
- Aerospace & Defense4.4%—
- Real Estate Services2.0%—
- Single-Family Residential REITs1.3%—
- Hotels, Resorts & Cruise Lines1.2%—
- Other holdings5.2%—
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
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $MU | Micron Technology Inc | 114K | $38.5M | -38.3K | 45.8% |
| $TSLA | Tesla Inc | 58.5K | $21.7M | +0 | 25.9% |
| $DHI | D.R. Horton Inc | 262K | $6.39M | -51.6K | 7.6% |
| $WY | Weyerhaeuser Company | 158K | $3.85M | +43K | 4.6% |
| $AXON | Axon Enterprise Inc | 8.71K | $3.7M | — | 4.4% |
| $CSGP | CoStar Group Inc | 41K | $1.65M | +35.5K | 2.0% |
| $INVH | Invitation Homes Inc | 45.2K | $1.12M | +16K | 1.3% |
| $ABNB | Airbnb Inc | 8.17K | $1.03M | -6.9K | 1.2% |
| $EFX | Equifax Inc | 5.14K | $925K | -7.75K | 1.1% |
| $CMG | Chipotle Mexican Grill Inc | 27.8K | $890K | -8.6K | 1.1% |
…and 16 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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