Sompo Asset Management Co., Ltd.
SEC Form 13F institutional filer · CIK 0001533504
13F-HR · 159 reported holdings · 2026-03-31
Reported long-US-equity value
$0.49B
Top-10 concentration
44.6%
Sompo Asset Management Co., Ltd. — $493M AUM allocation strategy
Sompo Asset Management Co., Ltd. files SEC Form 13F and reports $493M of long US equity value across 159 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 14.9%, followed by Communication Services 6.4% and Health Care 5.9%.
The top 10 holdings account for 45% 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.
Sompo Asset Management Co., Ltd. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$493M
total across 159 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
45% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$UPS +14.3K sh · +$1.37M+$MRK +13.3K sh · +$2.37M+$CL +11.9K sh · +$1.27M
Biggest trims (shares)
−$AMCR −400K sh · −$331K−$INTC −67.1K sh · −$1.63M−$CSCO −13.1K sh · −$972K
Exited to nil (held last quarter, gone now)
$COR ($307K last qtr)$IT ($267K last qtr)$JKHY ($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)
- Interactive Media & Services6.4%—
- Semiconductors6.3%—
- Technology Hardware, Storage & Peripherals4.5%—
- Systems Software4.1%—
- Pharmaceuticals3.1%—
- Transaction & Payment Processing Services2.1%—
- Broadline Retail1.7%—
- Soft Drinks & Non-alcoholic Beverages1.6%—
- Other holdings70.0%—
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
8 of 8 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 88.4K | $25.4M | -6.62K | 5.2% |
| $NVDA | NVIDIA Corporation | 141K | $24.7M | -4.07K | 5.0% |
| $AAPL | Apple Inc | 87.7K | $22.3M | -2.51K | 4.5% |
| $MSFT | Microsoft Corporation | 54.8K | $20.3M | +1.11K | 4.1% |
| $V | Visa Inc | 34.1K | $10.3M | -1.17K | 2.1% |
| $AMZN | Amazon.com Inc | 41.2K | $8.58M | -3.61K | 1.7% |
| $KO | Coca-Cola Company | 105K | $7.96M | +174 | 1.6% |
| $JNJ | Johnson & Johnson | 32K | $7.83M | -4.24K | 1.6% |
…and 151 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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