HARBOR CAPITAL ADVISORS, INC.
SEC Form 13F institutional filer · CIK 0001039128
13F-HR · 204 reported holdings · 2026-03-31
Reported long-US-equity value
$0.00B
Top-10 concentration
37.6%
HARBOR CAPITAL ADVISORS, INC. — $566K AUM allocation strategy
HARBOR CAPITAL ADVISORS, INC. files SEC Form 13F and reports $566K of long US equity value across 204 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 13.2%, followed by Communication Services 9.8% and Financials 4.5%.
The top 10 holdings account for 38% 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.
HARBOR CAPITAL ADVISORS, INC. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$566K
total across 204 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
38% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$VZ +107K sh · +$5.4K+$NFLX +70.6K sh · +$6.99K+$ADP +43.8K sh · +$5.76K
Biggest trims (shares)
−$IVV −262K sh · −$19.6K−$SPYM −229K sh · −$18.8K−$IWM −103K sh · −$7.2K
Exited to nil (held last quarter, gone now)
$HD ($13.3K last qtr)$V ($8.63K last qtr)$XLF ($8.18K last qtr)$AMD ($7.66K last qtr)$XLV ($4.94K 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)
- Interactive Media & Services7.2%—
- Broadline Retail4.1%—
- Technology Hardware, Storage & Peripherals3.9%—
- Semiconductors3.8%—
- Systems Software3.6%—
- Movies & Entertainment2.6%—
- Diversified Banks2.4%—
- Asset Management & Custody Banks2.1%—
- Other holdings70.3%—
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 |
|---|---|---|---|---|---|
| $AMZN | Amazon.com Inc | 112K | $23.3K | — | 4.1% |
| $AAPL | Apple Inc | 87K | $22.1K | +4.7K | 3.9% |
| $NVDA | NVIDIA Corporation | 122K | $21.2K | -24K | 3.7% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 72.8K | $20.9K | -36.1K | 3.7% |
| $MSFT | Microsoft Corporation | 55.4K | $20.5K | +6.18K | 3.6% |
| $META | Meta Platforms Inc | 34.8K | $19.9K | -2.38K | 3.5% |
| $NFLX | Netflix Inc | 154K | $14.8K | +70.6K | 2.6% |
| $JPM | JP Morgan Chase & Co | 45.2K | $13.3K | -11.9K | 2.3% |
…and 196 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.
Newsletter signup
Free subscription. Daily trading day morning dispatch. No spam.