October Effect Ltd reported 32 positions worth $57.30M for the quarter ended Sep 30, 2026, down 17.6% on the prior quarter. It opened 2 new positions, added to 5, trimmed 17 and exited 5. Its largest holding is Nvidia Corp at 14.5% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| GOOGL Alphabet Inc. | +938 | +11.6% | $322.75K | 5.42% |
| UEC Uranium Energy Corp | +30.7K | – | $290.12K | 0.506% |
| FUBO FuboTV Inc. | +26.9K | – | $241.02K | 0.421% |
| PSLV Sprott Physical Silver Trust | +10.7K | +8.2% | $207.26K | 4.76% |
| RXT Rackspace Technology, Inc. | +32.1K | +39.8% | $119.76K | 0.734% |
| LUMN Lumen Technologies, Inc. | +12.7K | +4.6% | $70.93K | 2.82% |
| GLD Spdr Gold Trust | +67 | +7.8% | $25.52K | 0.619% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ORCL Oracle Corp | -10.6K | -48.9% | $1.46M | 2.65% |
| SPCX Space Exploration Technologies Corp | -6,475 | -100.0% | $1.11M | Exited |
| NBIS Nebius Group N.V. | -3,900 | -100.0% | $1.08M | Exited |
| AAOI Applied Optoelectronics, Inc. | -10.0K | -39.7% | $992.60K | 2.63% |
| MGY Magnolia Oil & Gas Corp | -26.0K | -100.0% | $664.82K | Exited |
| SFM Sprouts Farmers Market, Inc. | -6,800 | -100.0% | $575.14K | Exited |
| RDDT Reddit, Inc. | -3,021 | -10.8% | $430.31K | 6.22% |
| WDC Western Digital Corp | -740 | -5.9% | $336.30K | 9.39% |
| INTC Intel Corp | -2,369 | -6.4% | $284.82K | 7.25% |
| CBRS Cerebras Systems Inc. | -1,100 | -100.0% | $243.10K | Exited |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| SPCX Space Exploration Technologies Corp | -6,475 | $1.11M | 1.59% |
| NBIS Nebius Group N.V. | -3,900 | $1.08M | 1.55% |
| MGY Magnolia Oil & Gas Corp | -26.0K | $664.82K | 0.956% |
| SFM Sprouts Farmers Market, Inc. | -6,800 | $575.14K | 0.827% |
| CBRS Cerebras Systems Inc. | -1,100 | $243.10K | 0.35% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | NVDA Nvidia Corp | Technology | 36.5K | $8.33M | 14.53% | -300 | -0.8% | Reduced | 0% |
| 2 | WDC Western Digital Corp | Technology | 11.8K | $5.38M | 9.39% | -740 | -5.9% | Reduced | 0% |
| 3 | META Meta Platforms, Inc. | Technology | 6,916 | $5.02M | 8.75% | 0 | 0.0% | Unchanged | 0% |
| 4 | AMD Advanced Micro Devices Inc | Technology | 7,172 | $4.39M | 7.66% | -50 | -0.7% | Reduced | 0% |
| 5 | INTC Intel Corp | Technology | 34.6K | $4.16M | 7.25% | -2,369 | -6.4% | Reduced | 0% |
| 6 | RDDT Reddit, Inc. | Technology | 25.0K | $3.56M | 6.22% | -3,021 | -10.8% | Reduced | 0.02% |
| 7 | GE General Electric Co | Industrials | 11.1K | $3.45M | 6.03% | -5 | 0.0% | Reduced | 0% |
| 8 | GOOGL Alphabet Inc. | Technology | 9,022 | $3.10M | 5.42% | +938 | +11.6% | Added | 0% |
| 9 | PSLV Sprott Physical Silver Trust | Others | 140.7K | $2.72M | 4.76% | +10.7K | +8.2% | Added | 0.03% |
| 10 | AMAT Applied Materials Inc | Technology | 4,621 | $2.36M | 4.12% | -149 | -3.1% | Reduced | 0% |
| 11 | MU Micron Technology Inc | Technology | 1,530 | $1.63M | 2.84% | -10 | -0.6% | Reduced | 0% |
| 12 | LUMN Lumen Technologies, Inc. | Communication Services | 288.9K | $1.62M | 2.82% | +12.7K | +4.6% | Added | 0.03% |
| 13 | ORCL Oracle Corp | Technology | 11.1K | $1.52M | 2.65% | -10.6K | -48.9% | Reduced | 0% |
| 14 | AAOI Applied Optoelectronics, Inc. | Technology | 15.2K | $1.51M | 2.63% | -10.0K | -39.7% | Reduced | 0.02% |
| 15 | AMZN Amazon Com Inc | Consumer Discretionary | 5,053 | $1.26M | 2.2% | -800 | -13.7% | Reduced | 0% |
Tip. Select a row to see that position’s full history at October Effect.
As of its Q3 2026 13F filing, October Effect Ltd’s five largest positions were Nvidia Corp (NVDA) at 14.5%, Western Digital Corp (WDC) at 9.4%, Meta Platforms, Inc. (META) at 8.8%, Advanced Micro Devices Inc (AMD) at 7.7%, Intel Corp (INTC) at 7.3% of the reported portfolio.
October Effect Ltd reported a 13F portfolio worth $57.30M across 32 positions for Q3 2026. That is down 17.6% from the previous quarter.
Its largest purchases by value were Alphabet Inc. ($322.75K), Uranium Energy Corp ($290.12K), FuboTV Inc. ($241.02K). It opened 2 new positions.
Its largest sales by value were Oracle Corp ($1.46M), Space Exploration Technologies Corp ($1.11M), Nebius Group N.V. ($1.08M). It exited 5 positions entirely.
From the Form 13F-HR reports October Effect Ltd files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.