OE
October Effect Ltd SEC 13F Filing (Q2 2026) — Holdings & Portfolio
October Effect LtdCIK: 0002078353
Diversified strategySector-focusedContrarian
Total reported value
$106.3M
Reporting period: 2026-06-30 · Number of holdings: 64
October Effect Ltd disclosed 64 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $106.3M and a quarterly turnover rate of 70.4%.
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Personality snowflake
- Concentration
- 12.77
- Portfolio Stability
- 70.4
- Momentum
- 0
- Sector conviction
- 100
- Diversification
- 100
- Sizing Uniformity
- 89.7
October Effect Ltd's disclosed holdings carry a Herfindahl concentration index of 0.032 — mathematically equivalent to about 31 equally-sized positions, well below its 64 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 1.03), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 60% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd WDC
+276.7% $7.1M
New buy INTC
New buy RDDT
Trim NVDA
-34.0% -$2.4M
Sold out GEV
New buy AAOI
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | WDC | Western Digital CORP | Stock-Tech | 7.56% | +6.52% | +276.68% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 6.92% | -4.27% | -34.01% | |
| 3 | INTC | Intel CORP | Stock-Tech | 4.85% | +4.85% | NEW | |
| 4 | RDDT | Reddit Inc-cl A | Stock-Comm Services | 4.58% | +4.58% | NEW | |
| 5 | AMD | Advanced Micro Devices | Stock-Tech | 3.94% | +2.25% | — | |
| 6 | GE | General Electric | Stock-Industrials | 3.89% | +0.67% | +12.31% | |
| 7 | BIL | Ss Spdr Bb 1-3m T-bill ETF | ETF-Gov Bonds | 3.71% | -1.15% | -6.43% | |
| 8 | META | Meta Platforms Inc-class A | Stock-Comm Services | 3.66% | -0.92% | -0.57% | |
| 9 | AAOI | Applied Optoelectronics Inc | Stock-Tech | 3.51% | +3.51% | NEW | |
| 10 | AMAT | Applied Materials Inc | Stock-Tech | 3.24% | +3.24% | NEW | |
| 11 | ORCL | Oracle CORP | Stock-Tech | 2.99% | +2.99% | NEW | |
| 12 | SOXL | Direx Dail Semi Bu 3x Et-usd | ETF-Other | 2.90% | -0.42% | -80.75% | |
| 13 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 2.88% | +0.11% | +10.83% | |
| 14 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 2.72% | +0.97% | +52.90% | |
| 15 | SPYM | Ste Str Spdr Pt S&p 500 ETF | ETF-Large Cap & Growth | 2.32% | -0.26% | -4.01% | |
| 16 | PSLV | Sprott Physical Silver Trust | Stock-Other | 2.31% | -2.77% | -28.11% | |
| 17 | QFLR | Innovator Nasdaq-100 Mf ETF | ETF-Tech | 2.28% | -0.29% | -0.90% | |
| 18 | LUMN | Lumen Technologies Inc | Stock-Comm Services | 1.99% | +0.69% | +68.46% | |
| 19 | XLSR | Ss US Sector Rotation | ETF-Other | 1.89% | +0.13% | +17.04% | |
| 20 | SPTI | Ss Spdr P Int Term Tsy ETF | ETF-Other | 1.81% | -0.50% | -3.38% | |
| 21 | IWF | Ishares Russell 1000 Growth | ETF-Other | 1.81% | -0.18% | +281.15% | |
| 22 | MU | Micron Technology Inc | Stock-Tech | 1.67% | +1.67% | NEW | |
| 23 | FBCG | Fidelity Blue Chip Grow ETF | ETF-Other | 1.65% | +0.07% | +3.33% | |
| 24 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 1.51% | -0.44% | -4.78% | |
| 25 | SPDW | Ste Str Spdr Pt Dw EU ETF | ETF-Other | 1.39% | +0.04% | +14.39% | |
| 26 | SPEM | State Street Sp Ptf Em ETF | ETF-Other | 1.38% | +0.08% | +17.52% | |
| 27 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.31% | -1.60% | -51.72% | |
| 28 | TQQQ | Proshares Ultrapro Qqq | ETF-Other | 1.21% | -1.41% | -70.88% | |
| 29 | ✓ | Stock-Other | 1.04% | +1.04% | NEW | ||
| 30 | NBIS | Nebius Group N.V. | Stock-Other | 1.01% | +1.01% | NEW | |
| 31 | VGT | Vanguard Info Tech ETF | ETF-Tech | 0.89% | +0.07% | +677.52% | |
| 32 | TSLA | Tesla Inc | Stock-Consumer Disc | 0.89% | -0.52% | -31.59% | |
| 33 | QQQI | Neos Nasdaq-100 High Inc ETF | ETF-Tech | 0.83% | +0.03% | +11.17% | |
| 34 | GILD | Gilead Sciences Inc | Stock-Healthcare | 0.82% | -0.30% | -1.43% | |
| 35 | ACWX | Ishares Msci Acwi Ex US ETF | ETF-Other | 0.70% | -0.09% | -2.39% | |
| 36 | SPSM | Ss Spdr P S&p 600 Small Cap | ETF-Small Cap | 0.67% | +0.06% | +13.57% | |
| 37 | IWP | Ishares Russell Mid-cap Grow | ETF-Other | 0.67% | -0.08% | -4.34% | |
| 38 | FITB | Fifth Third Bancorp | Stock-Financials | 0.66% | -0.11% | -13.00% | |
| 39 | XAR | Ss Spdr S&p Aerospace Def | ETF-Other | 0.65% | -0.06% | — | |
| 40 | MGY | Magnolia Oil & Gas CORP - A | Stock-Energy | 0.63% | -1.50% | -55.71% | |
| 41 | MO | Altria Group Inc | Stock-Consumer Staples | 0.62% | -0.08% | -1.08% | |
| 42 | LMT | Lockheed Martin CORP | Stock-Industrials | 0.58% | -0.26% | -0.17% | |
| 43 | NFLX | Netflix Inc | Stock-Comm Services | 0.56% | -0.36% | — | |
| 44 | SFM | Sprouts Farmers Market Inc | Stock-Consumer Staples | 0.54% | -0.41% | -36.45% | |
| 45 | ZALT | Innovator US Eq 10 Buffer | ETF-Other | 0.53% | -0.48% | -38.45% | |
| 46 | RXT | Rackspace Technology Inc | Stock-Other | 0.50% | +0.50% | NEW | |
| 47 | PEP | Pepsico Inc | Stock-Consumer Staples | 0.49% | -0.19% | — | |
| 48 | AAPL | Apple Inc | Stock-Tech | 0.48% | -0.03% | — | |
| 49 | SPMD | Ss Spdr P S&p 400 Midcap ETF | ETF-Other | 0.44% | +0.04% | +17.82% | |
| 50 | JNK | Ss Spdr Bb High Yield Bond | ETF-High Yield | 0.40% | +0.04% | +34.32% |
1–50 of 64
Portfolio Performance
Performance for Q3 2026
-11.1%
Performance Last 4 Quarters
+21%
- Stdev
- +31.3%
- Beta
- +2.02
- Alpha
- -15.6%
- Max Drawdown
- -13.4%
- Annualized Perf
- +21%
- Batting Avg vs S&P
- +41.7%
- Sortino
- +1.6
- Stutzer
- +0.23
- Treynor
- +0.12
- Sterling
- +0.9
- Calmar
- +1.57
- Information Ratio
- +0.2
- Tracking Error
- +21.2%
- Stdev Down
- +14.7%
- Winning Months %
- +58.3%
- Losing Months %
- +41.7%
- Best 12 Months
- +21%
- Worst 12 Months
- +21%
- Efficiency Ratio
- +0.27
- Sharpe
- +0.75
- Stdev Sectors
- +18.8%
- Skewness
- +0.71
- Kurtosis
- +0.09
- Upside Potential
- +3.4
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
October Effect Ltd's most significant position changes for 2026-06-30: New buy: Intel CORP (INTC); New buy: Reddit Inc-cl A (RDDT); New buy: Applied Optoelectronics Inc (AAOI); New buy: Applied Materials Inc (AMAT); Sold out: GE Vernova Inc (GEV).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | WDC | Western Digital CORP | +6.5% | +276.68% | Add |
| 2 | INTC | Intel CORP | +4.9% | NEW | New buy |
| 3 | RDDT | Reddit Inc-cl A | +4.6% | NEW | New buy |
| 4 | AAOI | Applied Optoelectronics Inc | +3.5% | NEW | New buy |
| 5 | AMAT | Applied Materials Inc | +3.2% | NEW | New buy |
| 6 | ORCL | Oracle CORP | +3% | NEW | New buy |
| 7 | AMD | Advanced Micro Devices | +2.3% | — | Unchanged |
| 8 | MU | Micron Technology Inc | +1.7% | NEW | New buy |
| 9 | ✓ | +1% | NEW | New buy | |
| 10 | NBIS | Nebius Group N.V. | +1% | NEW | New buy |
| 11 | GOOGL | Alphabet Inc-cl A | +1% | +52.90% | Add |
| 12 | LUMN | Lumen Technologies Inc | +0.7% | +68.46% | Add |
| 13 | GE | General Electric | +0.7% | +12.31% | Add |
| 14 | RXT | Rackspace Technology Inc | +0.5% | NEW | New buy |
| 15 | RONB | Baron First Principles ETF | +0.4% | NEW | New buy |
| 16 | ✓ | +0.2% | NEW | New buy | |
| 17 | CERY | Ss Spdr Bbg En Ry Cm St N-ui | +0.2% | NEW | New buy |
| 18 | XLSR | Ss US Sector Rotation | +0.1% | +17.04% | Add |
| 19 | SPY | Ss Spdr S&p 500 ETF Trust-us | +0.1% | +10.83% | Add |
| 20 | SPEM | State Street Sp Ptf Em ETF | +0.1% | +17.52% | Add |
| 21 | FBCG | Fidelity Blue Chip Grow ETF | +0.1% | +3.33% | Add |
| 22 | VGT | Vanguard Info Tech ETF | +0.1% | +677.52% | Add |
| 23 | SPSM | Ss Spdr P S&p 600 Small Cap | +0.1% | +13.57% | Add |
| 24 | SPDW | Ste Str Spdr Pt Dw EU ETF | 0% | +14.39% | Add |
| 25 | SPMD | Ss Spdr P S&p 400 Midcap ETF | 0% | +17.82% | Add |
| 26 | JNK | Ss Spdr Bb High Yield Bond | 0% | +34.32% | Add |
| 27 | QQQI | Neos Nasdaq-100 High Inc ETF | 0% | +11.17% | Add |
| 28 | NXTG | First Trust Indxx Nextg ETF | 0% | — | Unchanged |
| 29 | FPX | First Trust US Equity Opport | 0% | — | Unchanged |
| 30 | GWX | State Street Spdr S&p Intern | — | +16.97% | Add |
| 31 | VOT | Vanguard Mid-cap Growth ETF | 0% | -2.42% | Trim |
| 32 | MIST | Milestone Pharmaceuticals In | 0% | -23.00% | Trim |
| 33 | AAPL | Apple Inc | 0% | — | Unchanged |
| 34 | PM | Philip Morris International | 0% | — | Unchanged |
| 35 | TRP | Tc Energy CORP | 0% | — | Unchanged |
| 36 | AVXL | Anavex Life Sciences CORP | -0.1% | EXIT | Sold out |
| 37 | XAR | Ss Spdr S&p Aerospace Def | -0.1% | — | Unchanged |
| 38 | FISR | Ss Fi Sector Rotation | -0.1% | +2.81% | Add |
| 39 | SIGA | Siga Technologies Inc | -0.1% | -6.40% | Trim |
| 40 | IWP | Ishares Russell Mid-cap Grow | -0.1% | -4.34% | Trim |
| 41 | MO | Altria Group Inc | -0.1% | -1.08% | Trim |
| 42 | ACWX | Ishares Msci Acwi Ex US ETF | -0.1% | -2.39% | Trim |
| 43 | FITB | Fifth Third Bancorp | -0.1% | -13.00% | Trim |
| 44 | SPH | Suburban Propane Partners LP | -0.1% | -1.17% | Trim |
| 45 | GLD | Spdr Gold Shares | -0.1% | -2.48% | Trim |
| 46 | IWF | Ishares Russell 1000 Growth | -0.2% | +281.15% | Add |
| 47 | QUBT | Quantum Computing Inc | -0.2% | EXIT | Sold out |
| 48 | PEP | Pepsico Inc | -0.2% | — | Unchanged |
| 49 | SPYM | Ste Str Spdr Pt S&p 500 ETF | -0.3% | -4.01% | Trim |
| 50 | LMT | Lockheed Martin CORP | -0.3% | -0.17% | Trim |
1–50 of 76
Filing History
FAQ
What is October Effect Ltd and what type of investor is it?
October Effect Ltd is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $106.3M, spread across 64 disclosed positions.
What are October Effect Ltd's largest equity positions?
Based on the latest 13F filing, October Effect Ltd's top holdings by market value are:
1. Western Digital CORP (WDC) — $8.0M (7.6%)
2. Nvidia CORP (NVDA) — $7.4M (6.9%)
3. Intel CORP (INTC) — $5.2M (4.8%)
4. Reddit Inc-cl A (RDDT) — $4.9M (4.6%)
5. Advanced Micro Devices (AMD) — $4.2M (3.9%)
What changes did October Effect Ltd make in its most recent portfolio filing?
In the latest reported quarter, October Effect Ltd made 67 notable position adjustments: 12 new positions were initiated, 17 existing holdings were added to, 26 positions were partially reduced, and 12 were completely exited. The largest of these moves: New buy: Intel CORP (INTC); New buy: Reddit Inc-cl A (RDDT); New buy: Applied Optoelectronics Inc (AAOI); New buy: Applied Materials Inc (AMAT); Sold out: GE Vernova Inc (GEV)
What sectors does October Effect Ltd focus on?
October Effect Ltd is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 59.0%
• Communication Services: 22.7%
• Industrials: 7.5%
• Consumer Discretionary: 3.7%
• Consumer Staples: 3.2%
• Energy: 1.5%
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Investment Profile
October Effect Ltd returned an annualized 21.0% over the trailing 12 months — underperforming the S&P 500 by 15.6 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 2.02 (more volatile than the market) and a 42% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 59.0% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 70 over the past 4 quarters — a shift toward more active trading.
It has added to its SPY position over the past two quarters (+$1.1M, now $3.1M), while trimming NVDA over the same stretch (-$4.8M, still holding $7.4M).
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Developer Access
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