Quantum Capital Management, LLC / NJ
SEC Form 13F institutional filer · CIK 0001513125
13F-HR · 19 reported holdings · 2026-03-31
Reported long-US-equity value
$0.58B
Top-10 concentration
87.0%
Quantum Capital Management, LLC / NJ — $584M AUM allocation strategy
Quantum Capital Management, LLC / NJ files SEC Form 13F and reports $584M of long US equity value across 19 reported holdings for 2026-03-31.
Its largest sector bet is Financials 25.9%, followed by Industrials 23.2% and Consumer Discretionary 15.4%.
The top 10 holdings account for 87% 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.
Quantum Capital Management, LLC / NJ — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$584M
total across 19 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
87% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$TYL +47.5K sh · +$8.11M+$VEEV +36.4K sh · −$6.96M+$MSCI +22K sh · +$8.82M
Biggest trims (shares)
−$CPRT −895K sh · −$38.2M−$ODFL −234K sh · −$22.2M−$IDXX −20.2K sh · −$20.1M
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)
- Financial Exchanges & Data17.6%—
- Cargo Ground Transportation12.6%—
- Homebuilding10.9%—
- Construction Materials10.4%—
- Health Care Technology9.5%—
- Trading Companies & Distributors7.6%—
- Insurance Brokers7.2%—
- Application Software7.1%—
- Other holdings17.1%—
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 |
|---|---|---|---|---|---|
| $ODFL | Old Dominion Freight Line Inc | 376K | $73.5M | -234K | 12.6% |
| $NVR | NVR Inc | 9.65K | $63.6M | +986 | 10.9% |
| $MSCI | MSCI Inc | 109K | $59M | +22K | 10.1% |
| $VEEV | Veeva Systems Inc | 317K | $55.7M | +36.4K | 9.5% |
| $MLM | Martin Marietta Materials Inc | 90.4K | $53.2M | — | 9.1% |
| $FAST | Fastenal Company | 954K | $44.2M | -13.2K | 7.6% |
| $MCO | Moody's Corporation | 99.7K | $43.5M | +15.8K | 7.5% |
| $BRO | Brown & Brown Inc | 642K | $41.8M | -8.24K | 7.2% |
| $TYL | Tyler Technologies Inc | 120K | $41.2M | +47.5K | 7.1% |
| $IDXX | IDEXX Laboratories Inc | 56.2K | $31.6M | -20.2K | 5.4% |
…and 9 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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