Diker Management LLC holds a concentrated book of 46 reported positions worth $129.9M as of Q2 2026 (disclosed Aug 14, 2026, a ~45-day 13F lag). This quarter they opened Navitas Semiconductor Corp and trimmed Advanced Micro Devices. Their largest long position is Steris PLC at 42% of the reported non-option book. Cloning the disclosed picks since 2025 would be +36% (+33.5%/yr). That is a simulation of the disclosed long book, not audited returns.
Following at the filing date actually beat the quarter-end book by 6.1 points over this window.
Growth of $10,000 cloning Diker Management LLC's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~45 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: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
+1 sector below the cut, under 0.5% 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 Diker Management LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Independent Investors Inc | 4 / 46 | $335.6M |
| Magnetar Financial LLC | 11 / 46 | $5.2B |
| Fiduciary Family Office, LLC | 9 / 46 | $152.6M |
| Stembrook Asset Management, LLC | 5 / 46 | $42.9M |
| Armstrong Henry H Associates Inc | 6 / 46 | $333.2M |
| DDD Partners, LLC | 8 / 46 | $508.5M |
| Bluefin Capital Management, LLC | 6 / 46 | $126.5M |
| Putney Financial Group LLC | 7 / 46 | $34.8M |
Ranked by the share of each fund's own book sitting in the names it shares with Diker Management LLC: 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 | Steris PLC SHS USD | $54.2M | 257.6K | 41.7% | —Held | |
| 2 | Advanced Micro Devices Inc COM | $7.6M | 13.0K | 5.8% | ▼−35% Reduced · −7K sh | |
| 3 | Nebius Group N.V. SHS CLASS A | $7.2M | 26.0K | 5.5% | ▼−35% Reduced · −14K sh | |
| 4 | Lumentum Hldgs Inc COM | $5.6M | 6.5K | 4.3% | ▼−35% Reduced · −4K sh | |
| 5 | Amkor Technology Inc COM | $5.2M | 60.0K | 4.0% | —Held | |
| 6 | Coherent Corp COM | $5.1M | 13.0K | 3.9% | ▼−35% Reduced · −7K sh | |
| 7 | Semtech Corp COM | $4.7M | 28.9K | 3.6% | ▲+33% Added · +7K sh | |
| 8 | Ultra Clean Hldgs Inc COM | $3.9M | 27.0K | 3.0% | —Held | |
| 9 | Apple Inc COM | $3.8M | 13.1K | 2.9% | —Held | |
| 10 | Ichor Holdings SHS | $3.7M | 32.5K | 2.8% | ▲+8.4% Added · +3K sh | |
| 11 | Sharkninja Inc COM SHS | $3.0M | 20.0K | 2.3% | —Held | |
| 12 | Navitas Semiconductor Corp COM | $2.8M | 153.6K | 2.1% | ▲New New position | |
| 13 | Jfrog Ltd ORD SHS | $2.7M | 30.0K | 2.1% | —Held | |
| 14 | Entegris Inc COM | $1.8M | 10.0K | 1.4% | ▲New New position | |
| 15 | Rocket Lab Corp COM | $1.4M | 14.0K | 1.1% | ▲+100% Added · +7K sh | |
| 16 | Zebra Technologies Corporati CL A | $1.3M | 5.0K | 1.0% | ▲New New position | |
| 17 | F5 Inc COM | $1.2M | 2.9K | 0.9% | ▲New New position | |
| 18 | Microsoft Corp COM | $1.2M | 3.2K | 0.9% | ▼−1.4% Reduced · −45 sh | |
| 19 | Thredup Inc CL A | $1.1M | 160.6K | 0.8% | —Held | |
| 20 | Toll Brothers Inc COM | $1.1M | 6.4K | 0.8% | —Held | |
| 21 | Coreweave Inc COM CL A | $995K | 10.0K | 0.8% | —Held | |
| 22 | Affirm Hldgs Inc COM CL A | $816K | 10.0K | 0.6% | ▲New New position | |
| 23 | Anika Therapeutics Inc COM | $785K | 53.7K | 0.6% | —Held | |
| 24 | Bioventus Inc COM CL A | $709K | 75.1K | 0.5% | —Held | |
| 25 | General MTRS Co COM | $694K | 9.0K | 0.5% | —Held | |
| 26 | Lantheus Hldgs Inc COM | $635K | 5.7K | 0.5% | ▼−30% Reduced · −3K sh | |
| 27 | Sofi Technologies Inc COM | $538K | 30.0K | 0.4% | ▲New New position | |
| 28 | Ast Spacemobile Inc COM CL A | $533K | 6.0K | 0.4% | —Held | |
| 29 | Pulse Biosciences Inc COM | $527K | 19.0K | 0.4% | —Held | |
| 30 | Ars Pharmaceuticals Inc COM | $525K | 65.5K | 0.4% | ▲+95% Added · +32K sh | |
| 31 | Servicetitan Inc SHS CL A | $495K | 7.0K | 0.4% | —Held | |
| 32 | 3M Co COM | $476K | 2.9K | 0.4% | —Held | |
| 33 | SPDR Gold TR GOLD SHS | $419K | 1.1K | 0.3% | —Held | |
| 34 | D R Horton Inc COM | $407K | 2.5K | 0.3% | —Held | |
| 35 | Cloudflare Inc CL A COM | $368K | 1.5K | 0.3% | ▲New New position | |
| 36 | Chevron Corporation COM | $361K | 2.2K | 0.3% | —Held | |
| 37 | Akamai Technologies Inc COM | $355K | 3.0K | 0.3% | ▲New New position | |
| 38 | American Eagle Outfitters In COM | $344K | 20.0K | 0.3% | —Held | |
| 39 | Artivion Inc COM | $303K | 13.5K | 0.2% | —Held | |
| 40 | Johnson & Johnson COM | $294K | 1.2K | 0.2% | —Held | |
| 41 | Birkenstock Holding PLC COM SHS | $288K | 6.7K | 0.2% | —Held | |
| 42 | Fastly Inc CL A | $220K | 12.0K | 0.2% | ▲New New position | |
| 43 | Thermo Fisher Scientific Inc COM | $201K | 400 | 0.2% | ▲New New position | |
| 44 | Vanda Pharmaceuticals Inc COM | $134K | 21.9K | 0.1% | —Held | |
| 45 | Lexicon Pharmaceuticals Inc COM NEW | $48K | 20.0K | <0.1% | —Held | |
| 46 | Jasper Therapeutics Inc COM NEW | $15K | 35.0K | <0.1% | —Held |
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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.