October Effect Ltd holds a diversified book of 64 reported positions worth $106.3M as of Q2 2026 (disclosed Jul 21, 2026, a ~21-day 13F lag). This quarter Space Exploration Techn-CL A first appears in 13F filings (one of 2 new listings in the book), a listing rather than a purchase; they opened Intel Corp and trimmed Nvidia Corp. Their largest long position is Western Digital Corp at 8% of the reported non-option book. Cloning the disclosed picks since 2025 would be +14% (+12.7%/yr). That is a simulation of the disclosed long book, not audited returns.
Growth of $10,000 cloning October Effect Ltd's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~21 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
65% mapped to company sectors
+4 sectors below the cut, 1% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as October Effect Ltd
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Prospect Hill Management, LLC | 7 / 64 | $229.6M |
| Draper Asset Management, LLC | 8 / 64 | $167.4M |
| Hoey Investments, Inc | 25 / 64 | $546.7M |
| Outlook Capital Management, LLC | 6 / 64 | $212.7M |
| Trust Asset Management LLC | 15 / 64 | $1.1B |
| Newlands Management Operations LLC | 6 / 64 | $11.4B |
| Copos Capital B.V. | 13 / 64 | $507.7M |
| Summa Corp. | 13 / 64 | $217.3M |
Ranked by the share of each fund's own book sitting in the names it shares with October Effect Ltd: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Western Digital Corp COM | $8.0M | 12.6K | 7.6% | ▲+277% Added · +9K sh | |
| 2 | Nvidia Corporation COM | $7.4M | 36.8K | 6.9% | ▼−34% Reduced · −19K sh | |
| 3 | Intel Corp COM | $5.2M | 36.9K | 4.9% | ▲New New position | |
| 4 | Reddit Inc CL A | $4.9M | 28.0K | 4.6% | ▲New New position | |
| 5 | Advanced Micro Devices Inc COM | $4.2M | 7.2K | 3.9% | —Held | |
| 6 | Ge Aerospace COM NEW | $4.1M | 11.1K | 3.9% | ▲+12% Added · +1K sh | |
| 7 | SPDR Series Trust ST STR BLO 1 ETF | $3.9M | 43.1K | 3.7% | ▼−6.4% Reduced · −3K sh | |
| 8 | Meta Platforms Inc CL A | $3.9M | 6.9K | 3.7% | ▼−0.6% Reduced · −40 sh | |
| 9 | Applied Optoelectronics Inc COM | $3.7M | 25.2K | 3.5% | ▲New New position | |
| 10 | Applied Matls Inc COM | $3.4M | 4.8K | 3.2% | ▲New New position | |
| 11 | Oracle Corp COM | $3.2M | 21.7K | 3.0% | ▲New New position | |
| 12 | Direxion Shares ETF Trust DAI SEM BUL ETF | $3.1M | 11.6K | 2.9% | ▼−81% Reduced · −49K sh | |
| 13 | State STR SPDR S&P 500 ETF T TR UNIT | $3.1M | 4.1K | 2.9% | ▲+11% Added · +400 sh | |
| 14 | Alphabet Inc CAP STK CL A | $2.9M | 8.1K | 2.7% | ▲+53% Added · +3K sh | |
| 15 | SPDR Series Trust ST STR P500ETF | $2.5M | 28.1K | 2.3% | ▼−4.0% Reduced · −1K sh | |
| 16 | Sprott Asset Management LP PHYSICAL SILVER | $2.5M | 130.0K | 2.3% | ▼−28% Reduced · −51K sh | |
| 17 | Innovator Etfs Trust NASDAQ 100 MANA | $2.4M | 66.3K | 2.3% | ▼−0.9% Reduced · −600 sh | |
| 18 | Lumen Technologies Inc COM | $2.1M | 276.3K | 2.0% | ▲+68% Added · +112K sh | |
| 19 | Ssga Active TR STATE STREET US | $2.0M | 31.0K | 1.9% | ▲+17% Added · +5K sh | |
| 20 | SPDR Series Trust ST INTER ETF | $1.9M | 67.7K | 1.8% | ▼−3.4% Reduced · −2K sh | |
| 21 | Ishares TR RUS 1000 GRW ETF | $1.9M | 15.5K | 1.8% | ▲+281% Added · +11K sh | |
| 22 | Micron Technology Inc COM | $1.8M | 1.5K | 1.7% | ▲New New position | |
| 23 | Fidelity Covington Trust BLUE CHIP GRWTH | $1.8M | 28.2K | 1.6% | ▲+3.3% Added · +910 sh | |
| 24 | Ishares TR CORE US AGGBD ET | $1.6M | 16.2K | 1.5% | ▼−4.8% Reduced · −816 sh | |
| 25 | SPDR Index SHS FDS ST STR PO EX ETF | $1.5M | 29.3K | 1.4% | ▲+14% Added · +4K sh | |
| 26 | SPDR Index SHS FDS ST PORT MARK ETF | $1.5M | 28.3K | 1.4% | ▲+18% Added · +4K sh | |
| 27 | Amazon Com Inc COM | $1.4M | 5.9K | 1.3% | ▼−52% Reduced · −6K sh | |
| 28 | Proshares TR ULTRAPRO QQQ | $1.3M | 15.9K | 1.2% | ▼−71% Reduced · −39K sh | |
| 29 | Space Exploration Techn Corp CLASS A COM STK | $1.1M | 6.5K | 1.0% | →Listed Newly reportable | |
| 30 | Nebius Group N.V. SHS CLASS A | $1.1M | 3.9K | 1.0% | ▲New New position | |
| 31 | Vanguard World FD INF TECH ETF | $951K | 8.0K | 0.9% | ▲+678% Added · +7K sh | |
| 32 | Tesla Inc COM | $946K | 2.2K | 0.9% | ▼−32% Reduced · −1K sh | |
| 33 | NEOS ETF Trust NASDAQ 100 HIGH | $881K | 15.5K | 0.8% | ▲+11% Added · +2K sh | |
| 34 | Gilead Sciences Inc COM | $870K | 6.9K | 0.8% | ▼−1.4% Reduced · −100 sh | |
| 35 | Ishares TR MSCI ACWI EX US | $745K | 9.8K | 0.7% | ▼−2.4% Reduced · −240 sh | |
| 36 | SPDR Series Trust ST STR SP600 SML | $712K | 12.3K | 0.7% | ▲+14% Added · +1K sh | |
| 37 | Ishares TR RUS MD CP GR ETF | $709K | 4.8K | 0.7% | ▼−4.3% Reduced · −220 sh | |
| 38 | Fifth Third Bancorp COM | $704K | 12.5K | 0.7% | ▼−13% Reduced · −2K sh | |
| 39 | SPDR Series Trust ST STR SP AERO | $694K | 2.4K | 0.7% | —Held | |
| 40 | Magnolia Oil & Gas Corp CL A | $665K | 26.0K | 0.6% | ▼−56% Reduced · −33K sh | |
| 41 | Altria Group Inc COM | $660K | 9.2K | 0.6% | ▼−1.1% Reduced · −100 sh | |
| 42 | Lockheed Martin Corp COM | $616K | 1.2K | 0.6% | ▼−0.2% Reduced · −2 sh | |
| 43 | Netflix Inc. COM | $596K | 8.3K | 0.6% | —Held | |
| 44 | Sprouts FMRS MKT Inc COM | $575K | 6.8K | 0.5% | ▼−36% Reduced · −4K sh | |
| 45 | Innovator Etfs Trust U S EQ 10 BUFFER | $563K | 16.6K | 0.5% | ▼−38% Reduced · −10K sh | |
| 46 | Rackspace Technology Inc COM | $527K | 80.8K | 0.5% | ▲New New position | |
| 47 | Pepsico Inc COM | $516K | 3.8K | 0.5% | —Held | |
| 48 | Apple Inc COM | $508K | 1.8K | 0.5% | —Held | |
| 49 | SPDR Series Trust ST STR P400MID | $472K | 7.0K | 0.4% | ▲+18% Added · +1K sh | |
| 50 | SPDR Series Trust ST BLOO HIGH ETF | $425K | 4.4K | 0.4% | ▲+34% Added · +1K sh |
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As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.