Graphene Investments SAS
SEC Form 13F institutional filer · CIK 0001965776
13F-HR · 31 reported holdings · 2026-03-31
Reported long-US-equity value
$0.11B
Top-10 concentration
43.7%
Graphene Investments SAS — $112M AUM allocation strategy
Graphene Investments SAS files SEC Form 13F and reports $112M of long US equity value across 31 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 32.4%, followed by Communication Services 10.5% and Financials 8.7%.
The top 10 holdings account for 44% 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.
Graphene Investments SAS — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$112M
total across 31 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
44% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$CDW +4.1K sh · +$174K+$CRM +3.8K sh · −$284K+$AVGO +3.5K sh · +$509K
Biggest trims (shares)
−$INTC −21.9K sh · −$381K−$BKR −21K sh · −$150K−$PFE −13K sh · +$47.4K
Added from nil (new positions)
None this quarter
Exited to nil (held last quarter, gone now)
None this quarter
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)
- Semiconductors10.7%—
- Interactive Media & Services7.6%—
- Technology Hardware, Storage & Peripherals5.4%—
- Systems Software5.2%—
- Environmental & Facilities Services3.0%—
- Asset Management & Custody Banks3.0%—
- Pharmaceuticals2.9%—
- Health Care Facilities2.9%—
- Other holdings59.1%—
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 |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 29.6K | $8.51M | -1.7K | 7.6% |
| $AAPL | Apple Inc | 24K | $6.09M | +0 | 5.5% |
| $NVDA | NVIDIA Corporation | 34.8K | $6.07M | +0 | 5.4% |
| $AVGO | Broadcom Inc | 19.2K | $5.94M | +3.5K | 5.3% |
| $MSFT | Microsoft Corporation | 15.8K | $5.85M | +3.2K | 5.2% |
| $WM | Waste Management Inc | 14.6K | $3.35M | -2K | 3.0% |
| $BNY | The Bank of New York Mellon Corporation | 28K | $3.32M | -2.7K | 3.0% |
| $PFE | Pfizer Inc | 117K | $3.28M | -13K | 2.9% |
| $HCA | HCA Healthcare Inc | 6.9K | $3.27M | +0 | 2.9% |
| $NDAQ | Nasdaq Inc | 37.5K | $3.18M | +0 | 2.8% |
…and 21 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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