Octahedron Capital Management L.P.
SEC Form 13F institutional filer · CIK 0001891904
13F-HR · 9 reported holdings · 2026-03-31
Reported long-US-equity value
$0.08B
Top-10 concentration
100.0%
Octahedron Capital Management L.P. — $76.9M AUM allocation strategy
Octahedron Capital Management L.P. files SEC Form 13F and reports $76.9M of long US equity value across 9 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 44.2%, followed by Communication Services 39.8% and Consumer Discretionary 16.0%.
The top 10 holdings account for 100% 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.
Octahedron Capital Management L.P. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$76.9M
total across 9 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
100% of value
higher = narrower conviction; lower = spread / hedging
Biggest trims (shares)
−$NVDA −50.2K sh · −$9.88M−$NOW −9.9K sh · −$3.63M−$LITE −4.25K sh · +$251K
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 & Services39.8%—
- Semiconductors26.2%—
- Automotive Retail16.0%—
- Electronic Components7.0%—
- Systems Software5.9%—
- Communications Equipment5.0%—
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
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GOOG | Alphabet Inc. Class C Capital Stock | 65.7K | $18.9M | +0 | 24.6% |
| $CVNA | Carvana Co | 39.1K | $12.3M | — | 16.0% |
| $META | Meta Platforms Inc | 20.5K | $11.7M | +19.3K | 15.3% |
| $NVDA | NVIDIA Corporation | 43K | $7.5M | -50.2K | 9.8% |
| $INTC | Intel Corporation | 168K | $7.41M | +80K | 9.6% |
| $COHR | Coherent Corp | 22.7K | $5.41M | — | 7.0% |
| $MU | Micron Technology Inc | 15.5K | $5.25M | — | 6.8% |
| $NOW | ServiceNow Inc | 43.5K | $4.55M | -9.9K | 5.9% |
| $LITE | Lumentum Holdings Inc | 5.45K | $3.83M | -4.25K | 5.0% |
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
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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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