Rosenblum Silverman Sutton S F Inc /ca
Long book
$382.3M
Q1 2026
Positions
76
Top-10 weight
50%
concentration
Last quarter
+8.7%
SPY +14.8%
Turnover
5%
of book per quarter
Strategy in plain words
auto-generated from filingsRosenblum Silverman Sutton S F Inc /ca is a diversified fundamental manager, running a $382.3M US long book across 76 positions.
The portfolio is concentrated: the top 10 names carry 50% of the portfolio. The book barely moves quarter to quarter — a patient, low-turnover holder. Current anchor positions: NVIDIA CORP, AMAZON.COM INC, NETFLIX INC, COSTCO WHOLESALE CORP, MICROSOFT CORP.
Over the last 9 quarters its long book ran on average 1.7pp per quarter behind the S&P 500, beating the index in 3 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+6.6%
Q2 2024
+5.1%
Q3 2024
+4.9%
Q4 2024
-8.3%
Q1 2025
+14.3%
Q2 2025
+5.4%
Q3 2025
-0.9%
Q4 2025
-10.9%
Q1 2026
+8.7%
Sector allocation
Technology 45%
Consumer discretionary 14%
Services media 13%
Other 9%
Industrials 8%
Healthcare 7%
Financials 5%
Consumer staples 0%
Long book by quarter
What does Rosenblum Silverman own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| NVDA NVIDIA CORP | Technology | 246.9K | $43.1M | 11.3% | -2.1% |
| AMZN AMAZON.COM INC | Consumer discretionary | 95.8K | $19.9M | 5.2% | -0.7% |
| NFLX NETFLIX INC | Services media | 189.8K | $18.3M | 4.8% | +0.1% |
| COST COSTCO WHOLESALE CORP | Consumer discretionary | 17.7K | $17.7M | 4.6% | -1.3% |
| MSFT MICROSOFT CORP | Technology | 46.9K | $17.4M | 4.5% | -0.5% |
| V VISA INC-CLASS A SHARES | Services media | 57.3K | $17.3M | 4.5% | -0.6% |
| GOOGL ALPHABET INC-CL A | Technology | 59.8K | $17.2M | 4.5% | -2.3% |
| META META PLATFORMS INC-CLASS A | Technology | 30.1K | $17.2M | 4.5% | -0.2% |
| SN SHARKNINJA INC | Industrials | 121.1K | $12.8M | 3.4% | -0.9% |
| CTAS CINTAS CORP | Other | 70.3K | $11.9M | 3.1% | -1.1% |
| ALNY ALNYLAM PHARMACEUTICALS INC | Healthcare | 32.9K | $10.9M | 2.8% | -0.8% |
| GOOG ALPHABET INC-CL C | Technology | 36.9K | $10.6M | 2.8% | -4.7% |
| TMO THERMO FISHER SCIENTIFIC INC | Other | 18.7K | $9.2M | 2.4% | -1.0% |
| CRM SALESFORCE INC | Technology | 40.1K | $7.5M | 2.0% | -2.3% |
| PODD INSULET CORP | Healthcare | 34.0K | $7.1M | 1.9% | +0.6% |
| DECK DECKERS OUTDOOR CORP | Other | 69.6K | $7.0M | 1.8% | -1.0% |
| JPM JPMORGAN CHASE & CO | Financials | 23.4K | $6.9M | 1.8% | -0.4% |
| RDDT REDDIT INC-CL A | Technology | 48.6K | $6.5M | 1.7% | -0.2% |
| SNPS SYNOPSYS INC | Technology | 14.4K | $5.7M | 1.5% | +0.5% |
| HD HOME DEPOT INC | Consumer discretionary | 14.8K | $4.9M | 1.3% | -2.6% |
| XYL XYLEM INC | Industrials | 40.2K | $4.8M | 1.3% | +0.4% |
| Z ZILLOW GROUP INC - C | Services media | 108.2K | $4.5M | 1.2% | +5.5% |
| BX BLACKSTONE INC | Financials | 36.5K | $4.2M | 1.1% | +0.4% |
| ADBE ADOBE INC | Technology | 17.1K | $4.1M | 1.1% | -11.4% |
| TSLA TESLA INC | Industrials | 10.5K | $3.9M | 1.0% | -2.6% |
| SAIA SAIA INC | Industrials | 9.0K | $3.2M | 0.8% | -4.5% |
| NOW SERVICENOW INC | Technology | 26.8K | $2.8M | 0.7% | -0.4% |
| OKTA OKTA INC | Technology | 33.1K | $2.6M | 0.7% | +0.1% |
| BAC BANK OF AMERICA CORP | Financials | 45.9K | $2.2M | 0.6% | -0.6% |
| IQV IQVIA HOLDINGS INC | Healthcare | 12.5K | $2.1M | 0.6% | +8.6% |
| AAPL APPLE INC | Technology | 7.7K | $1.9M | 0.5% | -13.4% |
| DT DYNATRACE INC | Technology | 49.9K | $1.8M | 0.5% | -17.5% |
| XYZ BLOCK INC | Technology | 28.9K | $1.7M | 0.5% | +248.2% |
| WK WORKIVA INC | Technology | 27.3K | $1.6M | 0.4% | +0.1% |
| TJX TJX COMPANIES INC | Consumer discretionary | 10.0K | $1.6M | 0.4% | +1.4% |
| MS MORGAN STANLEY | Financials | 5.6K | $924K | 0.2% | -0.7% |
| SGI SOMNIGROUP INTERNATIONAL INC | Other | 11.0K | $814K | 0.2% | +1.8% |
| BRBR BELLRING BRANDS INC | Consumer staples | 47.1K | $758K | 0.2% | -50.8% |
| ILMN ILLUMINA INC | Healthcare | 6.1K | $756K | 0.2% | -6.4% |
| CVX CHEVRON CORP | Energy | 2.2K | $462K | 0.1% | +0.1% |
| BRK/B BERKSHIRE HATHAWAY INC-CL B | Financials | 920 | $441K | 0.1% | -2.6% |
| SPGI S&P GLOBAL INC | Services media | 1.0K | $440K | 0.1% | Held |
| ZTS ZOETIS INC | Healthcare | 3.5K | $412K | 0.1% | -64.6% |
| ANET ARISTA NETWORKS INC | Technology | 3.2K | $397K | 0.1% | Held |
| NTRA NATERA INC | Healthcare | 1.9K | $370K | 0.1% | -2.6% |
| RTX RTX CORP | Industrials | 1.6K | $317K | 0.1% | Held |
| UNP UNION PACIFIC CORP | Industrials | 1.2K | $296K | 0.1% | Held |
| ISRG INTUITIVE SURGICAL INC | Healthcare | 629 | $290K | 0.1% | Held |
| BAC 7.25 PERP L BANK OF AMERICA CORP | — | 196 | $234K | 0.1% | Held |
| PYPL PAYPAL HOLDINGS INC | Services media | 4.6K | $207K | 0.1% | -6.6% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 13, 2026 | 76 | $382.3M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 13, 2026 | 80 | $432.2M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 78 | $437.9M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 13, 2025 | 77 | $412.5M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 12, 2025 | 75 | $362.9M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 13, 2025 | 74 | $398.1M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 77 | $391.0M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 75 | $373.4M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 14, 2024 | 74 | $353.1M | canonical | SEC ↗ |
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