DUNCKER STREETT & CO INC
SEC Form 13F institutional filer · CIK 0001020585
13F-HR · 276 reported holdings · 2026-03-31
Reported long-US-equity value
$0.47B
Top-10 concentration
35.0%
DUNCKER STREETT & CO INC — $466M AUM allocation strategy
DUNCKER STREETT & CO INC files SEC Form 13F and reports $466M of long US equity value across 276 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 17.0%, followed by Financials 9.5% and Health Care 9.3%.
The top 10 holdings account for 35% 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.
DUNCKER STREETT & CO INC — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$466M
total across 276 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
35% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$SLB +70.6K sh · +$3.64M+$TGT +30.7K sh · +$3.77M+$PG +18.5K sh · +$2.7M
Biggest trims (shares)
−$CPRT −23.6K sh · −$1.01M−$UBER −22.5K sh · −$2.09M−$NOW −21.5K sh · −$3.45M
Exited to nil (held last quarter, gone now)
$FIS ($31.4K last qtr)$JKHY ($18.2K last qtr)$WTW ($14.8K last qtr)$BRO ($7.41K last qtr)$CTVA ($1.48K 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)
- Semiconductors7.9%—
- Systems Software4.8%—
- Technology Hardware, Storage & Peripherals4.4%—
- Life Sciences Tools & Services4.0%—
- Interactive Media & Services3.7%—
- Integrated Oil & Gas3.6%—
- Biotechnology3.5%—
- Diversified Banks3.1%—
- Other holdings65.0%—
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 |
|---|---|---|---|---|---|
| $AVGO | Broadcom Inc | 71.6K | $22.2M | -3.45K | 4.8% |
| $AAPL | Apple Inc | 80.6K | $20.5M | -10.8K | 4.4% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 60.7K | $17.5M | -1.54K | 3.7% |
| $XOM | ExxonMobil Holdings Corporation | 99.1K | $16.8M | +5.03K | 3.6% |
| $ABBV | AbbVie Inc | 74.6K | $16.2M | +2.63K | 3.5% |
| $MSFT | Microsoft Corporation | 42.7K | $15.8M | -4.05K | 3.4% |
| $JPM | JP Morgan Chase & Co | 49.4K | $14.5M | -274 | 3.1% |
| $NVDA | NVIDIA Corporation | 82.7K | $14.4M | -11.1K | 3.1% |
| $MA | Mastercard Incorporated | 28.1K | $14.1M | -2.96K | 3.0% |
| $AMZN | Amazon.com Inc | 54K | $11.3M | -7.76K | 2.4% |
…and 266 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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