WESTCO ADVISORY SERVICES INC /ADV
SEC Form 13F institutional filer · CIK 0000946310
13F-HR · 65 reported holdings · 2026-03-31
Reported long-US-equity value
$0.14B
Top-10 concentration
63.4%
WESTCO ADVISORY SERVICES INC /ADV — $135M AUM allocation strategy
WESTCO ADVISORY SERVICES INC /ADV files SEC Form 13F and reports $135M of long US equity value across 65 reported holdings for 2026-03-31.
Its largest sector bet is Financials 25.3%, followed by Information Technology 20.4% and Industrials 4.9%.
The top 10 holdings account for 63% 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.
WESTCO ADVISORY SERVICES INC /ADV — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$135M
total across 65 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
63% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$IVZ +2.71K sh · +$188K+$CVX +2.3K sh · +$775K+$MPC +770 sh · +$70.4K
Biggest trims (shares)
−$BX −12.5K sh · −$2.33M−$AAPL −2.2K sh · −$1.69M−$ODFL −1.56K sh · +$336K
Exited to nil (held last quarter, gone now)
$ADP ($2M last qtr)$ARES ($1.16M last qtr)$PAYX ($322K last qtr)$MRSH ($312K last qtr)$ABT ($245K 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)
- Technology Hardware, Storage & Peripherals13.7%—
- Investment Banking & Brokerage11.6%—
- Diversified Banks8.3%—
- Multi-Sector Holdings4.1%—
- Systems Software4.0%—
- Semiconductors2.6%—
- Cargo Ground Transportation2.2%—
- Interactive Media & Services2.1%—
- Other holdings51.4%—
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
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AAPL | Apple Inc | 60.2K | $15.3M | -2.2K | 11.3% |
| $GS | Goldman Sachs Group Inc | 16K | $13.6M | +18 | 10.0% |
| $JPM | JP Morgan Chase & Co | 30.4K | $8.94M | -472 | 6.6% |
| $BRK.B | Berkshire Hathaway Inc.-Class B | 11.6K | $5.57M | -188 | 4.1% |
| $MSFT | Microsoft Corporation | 14.6K | $5.4M | -58 | 4.0% |
| $STX | Seagate Technology Holdings PLC | 8.31K | $3.26M | -40 | 2.4% |
| $ODFL | Old Dominion Freight Line Inc | 15.1K | $2.94M | -1.56K | 2.2% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 9.79K | $2.82M | -163 | 2.1% |
| $TSCO | Tractor Supply Company | 48.4K | $2.19M | -968 | 1.6% |
…and 56 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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