ARBOR CAPITAL MANAGEMENT INC /ADV
SEC Form 13F institutional filer · CIK 0001027570
13F-HR · 55 reported holdings · 2026-03-31
Reported long-US-equity value
$0.09B
Top-10 concentration
34.5%
ARBOR CAPITAL MANAGEMENT INC /ADV — $87.6M AUM allocation strategy
ARBOR CAPITAL MANAGEMENT INC /ADV files SEC Form 13F and reports $87.6M of long US equity value across 55 reported holdings for 2026-03-31.
Its largest sector bet is Health Care 12.4%, followed by Information Technology 11.0% and Consumer Discretionary 6.5%.
The top 10 holdings account for 34% of reported value — a broadly spread portfolio. 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.
ARBOR CAPITAL MANAGEMENT INC /ADV — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$87.6M
total across 55 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
34% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$NKE +3.3K sh · −$179K+$QCOM +2.79K sh · −$338K+$COIN +1.52K sh · −$72.1K
Biggest trims (shares)
−$KMI −9.62K sh · +$20.1K−$WY −2.42K sh · −$23.2K−$PPL −1.81K sh · +$133K
Exited to nil (held last quarter, gone now)
None this quarter
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)
- Biotechnology6.4%—
- Semiconductors5.7%—
- Electric Utilities5.2%—
- Broadline Retail4.1%—
- Interactive Media & Services3.3%—
- Health Care Equipment3.1%—
- Industrial Conglomerates3.0%—
- Pharmaceuticals2.9%—
- Other holdings66.2%—
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 |
|---|---|---|---|---|---|
| $ABBV | AbbVie Inc | 27K | $5.63M | — | 6.4% |
| $AMZN | Amazon.com Inc | 15.4K | $3.62M | +71 | 4.1% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 8.95K | $2.86M | -484 | 3.3% |
| $SO | Southern Company | 14.8K | $2.77M | -1.6K | 3.2% |
| $ABT | Abbott Laboratories | 26.5K | $2.69M | — | 3.1% |
| $MMM | 3M Company | 17.7K | $2.66M | +1.04K | 3.0% |
| $AVGO | Broadcom Inc | 7.49K | $2.61M | -22 | 3.0% |
| $JNJ | Johnson & Johnson | 10.7K | $2.59M | -1.25K | 3.0% |
| $QCOM | QUALCOMM Incorporated | 18.4K | $2.41M | +2.79K | 2.7% |
| $MSFT | Microsoft Corporation | 6.2K | $2.38M | +907 | 2.7% |
…and 45 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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