DIKER MANAGEMENT LLC
Long book
$112.1M
Q1 2026
Positions
42
Top-10 weight
81%
concentration
Last quarter
+21.2%
SPY +14.8%
Turnover
37%
of book per quarter
Strategy in plain words
auto-generated from filingsDIKER MANAGEMENT LLC is a concentrated fundamental stock-picker, running a $112.1M US long book across 42 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: STERIS PLC, LUMENTUM HOLDINGS INC, COHERENT CORP, NEBIUS GROUP NV, ADVANCED MICRO DEVICES.
Over the last 9 quarters its long book ran on average 0.4pp per quarter behind the S&P 500, beating the index in 4 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-7.1%
Q2 2024
+6.6%
Q3 2024
+1.9%
Q4 2024
-3.2%
Q1 2025
+6.5%
Q2 2025
+6.3%
Q3 2025
+9.4%
Q4 2025
-4.4%
Q1 2026
+21.2%
Sector allocation
Healthcare 54%
Technology 34%
Other 4%
Industrials 4%
Financials 1%
Consumer discretionary 1%
Materials 1%
Communications 0%
Long book by quarter
What does DIKER MANAGEMENT own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| STE STERIS PLC | Healthcare | 257.6K | $57.0M | 50.8% | +0.1% |
| LITE LUMENTUM HOLDINGS INC | Technology | 10.0K | $7.0M | 6.3% | -50.0% |
| COHR COHERENT CORP | Other | 20.0K | $4.8M | 4.2% | -50.0% |
| NBIS NEBIUS GROUP NV | Technology | 40.0K | $4.2M | 3.7% | Held |
| AMD ADVANCED MICRO DEVICES | Technology | 20.0K | $4.1M | 3.6% | Held |
| SHOP SHOPIFY INC - CLASS A | Technology | 30.0K | $3.6M | 3.2% | +50.0% |
| AAPL APPLE INC | Technology | 13.1K | $3.3M | 3.0% | -34.4% |
| AMKR AMKOR TECHNOLOGY INC | Technology | 60.0K | $2.7M | 2.4% | New |
| CLS CELESTICA INC | Technology | 8.0K | $2.3M | 2.0% | +33.3% |
| SN SHARKNINJA INC | Industrials | 20.0K | $2.1M | 1.9% | Held |
| UCTT ULTRA CLEAN HOLDINGS INC | Technology | 27.0K | $1.7M | 1.5% | New |
| SMTC SEMTECH CORP | Technology | 21.7K | $1.7M | 1.5% | +116.8% |
| FROG JFROG LTD | Technology | 30.0K | $1.4M | 1.3% | +20.0% |
| ICHR ICHOR HOLDINGS LTD | Technology | 30.0K | $1.4M | 1.2% | New |
| IREN IREN LTD | Financials | 40.0K | $1.4M | 1.2% | Held |
| APH AMPHENOL CORP-CL A | Technology | 10.0K | $1.3M | 1.1% | New |
| MSFT MICROSOFT CORP | Technology | 3.3K | $1.2M | 1.1% | -22.7% |
| TOL TOLL BROTHERS INC | Industrials | 6.4K | $873K | 0.8% | Held |
| ANIK ANIKA THERAPEUTICS INC | Healthcare | 53.7K | $778K | 0.7% | -7.8% |
| CRWV COREWEAVE INC-CL A | Technology | 10.0K | $775K | 0.7% | Held |
| BVS BIOVENTUS INC - A | Healthcare | 75.1K | $686K | 0.6% | +200.5% |
| GM GENERAL MOTORS CO | Industrials | 9.0K | $671K | 0.6% | -52.1% |
| LNTH LANTHEUS HOLDINGS INC | Materials | 8.2K | $624K | 0.6% | Held |
| TDUP THREDUP INC - CLASS A | Consumer discretionary | 160.6K | $527K | 0.5% | +5.2% |
| NOW SERVICENOW INC | Technology | 5.0K | $523K | 0.5% | Held |
| ASTS AST SPACEMOBILE INC | Communications | 6.0K | $497K | 0.4% | New |
| AORT ARTIVION INC | Healthcare | 13.5K | $494K | 0.4% | Held |
| CVX CHEVRON CORP | Energy | 2.2K | $450K | 0.4% | -49.5% |
| RKLB ROCKET LAB CORP | Industrials | 7.0K | $450K | 0.4% | New |
| TTAN SERVICETITAN INC-A | Technology | 7.0K | $444K | 0.4% | -30.0% |
| MMM 3M CO | Healthcare | 2.9K | $427K | 0.4% | -49.8% |
| P EVERPURE INC-A | Technology | 7.0K | $413K | 0.4% | -53.3% |
| PLSE PULSE BIOSCIENCES INC | Healthcare | 19.0K | $410K | 0.4% | New |
| DHI DR HORTON INC | Industrials | 2.5K | $343K | 0.3% | Held |
| AEO AMERICAN EAGLE OUTFITTERS | Consumer discretionary | 20.0K | $334K | 0.3% | -10.3% |
| JNJ JOHNSON & JOHNSON | Healthcare | 1.2K | $283K | 0.3% | -49.7% |
| SPRY ARS PHARMACEUTICALS INC | Healthcare | 33.5K | $269K | 0.2% | Held |
| BIRK BIRKENSTOCK HOLDING PLC | Other | 6.7K | $240K | 0.2% | Held |
| VNDA VANDA PHARMACEUTICALS INC | Healthcare | 21.9K | $151K | 0.1% | New |
| LXRX LEXICON PHARMACEUTICALS INC | Healthcare | 20.0K | $31K | 0.0% | New |
| JSPR JASPER THERAPEUTICS INC | Healthcare | 35.0K | $31K | 0.0% | New |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 42 | $112.1M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 41 | $129.3M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 38 | $123.8M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 34 | $106.4M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 22, 2025 | 30 | $83.6M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 38 | $115.4M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 42 | $125.3M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 36 | $118.0M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 36 | $122.9M | canonical | SEC ↗ |
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