Central Securities Corp
SEC Form 13F institutional filer · CIK 0000018748
13F-HR · 23 reported holdings · 2026-03-31
Central Securities Corp is a closed-end investment company.
Reported long-US-equity value
$1.06B
Top-10 concentration
66.9%
Central Securities Corp — $1.06B AUM allocation strategy
Central Securities Corp files SEC Form 13F and reports $1.06B of long US equity value across 23 reported holdings for 2026-03-31.
Its largest sector bet is Financials 34.8%, followed by Information Technology 28.2% and Communication Services 15.7%.
The top 10 holdings account for 67% 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.
Central Securities Corp — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.06B
total across 23 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
67% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$SCHW −100K sh · −$14.1M−$GOOG −20K sh · −$16.4M−$AON −20K sh · −$9.47M
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 & Services15.7%—
- Semiconductors10.5%—
- Consumer Finance10.0%—
- Electronic Equipment & Instruments9.3%—
- Property & Casualty Insurance7.4%—
- Investment Banking & Brokerage6.2%—
- Communications Equipment5.7%—
- Insurance Brokers5.1%—
- Other holdings30.2%—
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 |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 400K | $115M | -20K | 10.8% |
| $ADI | Analog Devices Inc | 350K | $111M | -10K | 10.5% |
| $PGR | Progressive Corporation | 400K | $79.3M | +0 | 7.5% |
| $SCHW | Charles Schwab Corporation | 700K | $65.8M | -100K | 6.2% |
| $COF | Capital One Financial Corporation | 350K | $63.9M | +15K | 6.0% |
| $MSI | Motorola Solutions Inc | 140K | $60.8M | +0 | 5.7% |
| $KEYS | Keysight Technologies Inc | 200K | $56.5M | +0 | 5.3% |
| $AMZN | Amazon.com Inc | 260K | $54.2M | +0 | 5.1% |
| $CVX | Chevron Corporation | 256K | $53M | +0 | 5.0% |
| $META | Meta Platforms Inc | 90K | $51.5M | +0 | 4.8% |
…and 13 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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