Summa Corp.

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 27, 2025), Summa Corp. reported 76 stock positions worth $227.4 million. Its top holding was Nvidia (NVDA) at 50.4% of the portfolio, followed by Advanced Micro Devices (AMD, 9.2%) and Microsoft (MSFT, 5.2%). Compared with Q2 2025, it opened 6 new positions, sold out of 6, added to 16 and reduced 22. The biggest buy was Advanced Micro Devices (AMD, shares +20%) and the biggest sale Oportun Financial (OPRT, shares −20%).

Most Recent 13F
Q2 2026
Location
TOMBALL, TX
CIK
0001954929
Portfolio Value
$227.4M (Q3 2025)
SEC Filing
0001214659-25-015365 ↗ filed Oct 27, 2025

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $183.1M Q1 2024 Q2 2024: $206.3M Q2 2024 Q3 2024: $208.6M Q3 2024 Q4 2024: $203.9M Q4 2024 Q1 2025: $172.9M Q1 2025 Q2 2025: $192.4M Q2 2025 Q3 2025: $227.4M $227.4M Q3 2025 Q4 2025: $233.2M Q4 2025 Q1 2026: $241.9M Q1 2026 Q2 2026: $318.6M Q2 2026

Holdings 76 stocks · $227.4M
NVDA Nvidia Corp. 50.43% 614,630 $114.7M Add +1.6%
AMD Advanced Micro Devices 9.23% 129,670 $21.0M Add +20.4%
MSFT Microsoft Corp. 5.21% 22,876 $11.8M Add +5.1%
BABA Alibaba Group Holding-SP ADR 2.60% 33,110 $5.9M Add +38.4%
QCOM Qualcomm Inc. 2.56% 35,000 $5.8M Add +2.9%
IWF iShares Russell 1000 Growth 2.38% 11,555 $5.4M Reduce -2.4%
AMZN Amazon.com Inc. 2.07% 21,434 $4.7M Reduce -1.7%
AAPL Apple Inc. 1.43% 12,750 $3.2M Reduce -23.4%
MRVL Marvell Technology Inc. 1.40% 38,000 $3.2M Add +16.6%
OPRT Oportun Financial Corp. 1.22% 449,966 $2.8M Reduce -20.4%
IWD iShares Russell 1000 Value E 1.20% 13,379 $2.7M No change
GOOGL Alphabet Inc. Class A 1.18% 11,033 $2.7M Reduce -2.6%
UBER Uber Technologies Inc. 1.09% 25,207 $2.5M Reduce -0.4%
BRK.B Berkshire Hathaway Inc. Class B 1.02% 4,601 $2.3M Add +5.3%
DBEF Xtrackers MSCI Eafe Hedged E 0.96% 47,038 $2.2M Reduce -2.6%
GLD SPDR Gold Shares 0.75% 4,809 $1.7M New
WMT Walmart Inc. 0.71% 15,571 $1.6M Add +1.6%
SPY SS SPDR S&P 500 ETF Trust-US 0.51% 1,757 $1.2M Reduce -3.0%
IEF iShares 7-10 Year Treasury B 0.50% 11,851 $1.1M Add +82.3%
JPM JPMorgan Chase & Co. 0.50% 3,600 $1.1M No change
GOOG Alphabet Inc. Class C 0.50% 4,642 $1.1M Reduce -1.6%
BMNR Bitmine Immersion Technologi 0.48% 21,000 $1.1M New
IEI iShares 3-7 Year Treasury Bo 0.45% 8,624 $1.0M Add +10.7%
QQQ Invesco QQQ Trust Series 1 0.44% 1,676 $1.0M Reduce -10.8%
MA Mastercard Inc. Class A 0.43% 1,736 $987K No change
TSM Taiwan Semiconductor-SP ADR 0.42% 3,408 $952K New
VLO Valero Energy Corp. 0.40% 5,400 $919K No change
AVGO Broadcom Inc. 0.39% 2,663 $879K Add +77.3%
SHY iShares 1-3 Year Treasury Bo 0.35% 9,690 $804K No change
XOM Exxon Mobil Corp. 0.35% 7,000 $789K No change
VCSH Vanguard S/T Corp. Bond ETF 0.33% 9,500 $759K No change
SLQD iShares 0-5 YR Inv GRD Corp. 0.33% 14,800 $752K Add +23.3%
LQD Ishr Ibx Usd Invgd CB ETF-Ui 0.31% 6,425 $716K Add +26.0%
TIP iShares Tips Bond ETF 0.31% 6,430 $715K New
AGG iShares Core U.S. Aggregate 0.31% 7,050 $707K No change
MINT PIMCO Enhanced Short Maturit 0.30% 6,800 $685K Add +1.5%
VWOB Vanguard Emerg MKTS Gov BND 0.29% 10,000 $669K No change
O Realty Income Corp. 0.28% 10,500 $638K No change
ORCL Oracle Corp. 0.26% 2,082 $586K Reduce -15.6%
ABBV Abbvie Inc. 0.25% 2,500 $579K No change
WFC Wells Fargo & Co. 0.25% 6,829 $572K Reduce -24.3%
VYM Vanguard High DVD Yield ETF 0.25% 4,000 $564K No change
JNJ Johnson & Johnson 0.25% 3,020 $560K No change
EMB iShares JP Morgan Usd Emergi 0.23% 5,589 $532K New
COST Costco Wholesale Corp. 0.22% 544 $504K Add +8.8%
AAXJ iShares MSCI All Country Asi 0.22% 5,500 $502K No change
TMO Thermo Fisher Scientific Inc. 0.21% 1,000 $485K No change
EPD Enterprise Products Partners 0.21% 15,500 $485K No change
BIL SS SPDR BB 1-3M T-Bill ETF 0.21% 5,241 $481K Add +8.2%
PG The Procter & Gamble Co. 0.21% 3,120 $479K Reduce -0.1%
T AT&T Inc. 0.20% 16,000 $452K Reduce -3.6%
ADBE Adobe Inc. 0.20% 1,280 $452K Reduce -32.7%
UNH Unitedhealth Group Inc. 0.19% 1,250 $432K No change
CRM Salesforce Inc. 0.19% 1,780 $422K No change
MRK Merck & Co. Inc. 0.18% 4,880 $410K Reduce -9.0%
VOOG Vanguard S&P 500 Growth ETF 0.18% 927 $404K Reduce -28.0%
IWO iShares Russell 2000 Growth 0.17% 1,243 $398K No change
SHV iShares 0-1 Year Treasury Bo 0.17% 3,450 $381K Reduce -11.6%
MDY State Street SPDR S&P Midcap 0.16% 600 $358K No change
NAD Nuveen Quality Municipal Inc. 0.16% 30,464 $356K No change
VGT Vanguard Info Tech ETF 0.15% 445 $332K No change
V Visa Inc. Class A 0.14% 963 $329K Reduce -18.3%
USFR Wisdomtree Floating Rate Tre 0.14% 6,400 $322K New
LLY Eli Lilly & Co. 0.13% 378 $288K No change
AXP American Express Co. 0.12% 810 $269K No change
ZTS Zoetis Inc. 0.11% 1,763 $258K No change
HON Honeywell International Inc. 0.11% 1,210 $255K Reduce -0.1%
GINN Goldman Sachs Innovate Eqty 0.11% 3,350 $247K No change
IVV iShares Core S&P 500 ETF 0.10% 355 $238K Reduce -36.0%
NOW ServiceNow Inc. 0.10% 256 $236K No change
ABT Abbott Laboratories 0.10% 1,691 $226K Reduce -23.6%
DE Deere & Co. 0.10% 490 $224K No change
QTEC First Trust Nasdq 100 Tech I 0.10% 962 $221K No change
MSCI MSCI Inc. 0.10% 382 $217K No change
BXMT Blackstone Mortgage Tru Class A 0.09% 11,400 $210K No change
ISTB iShares Core 1-5 Year Usd Bo 0.09% 4,200 $205K No change

Portfolio Sells Q2 2025 → Q3 2025
OPRT Oportun Financial Corp. Reduce -20.4% 1.22% −0.88
EWG iShares MSCI Germany ETF Sold out 0.00% −0.56
AMZN Amazon.com Inc. Reduce -1.7% 2.07% −0.42
AAPL Apple Inc. Reduce -23.4% 1.43% −0.35
IWF iShares Russell 1000 Growth Reduce -2.4% 2.38% −0.23
SBUX Starbucks Corp. Sold out 0.00% −0.20
ADBE Adobe Inc. Reduce -32.7% 0.20% −0.18
SOXX iShares Semiconductor ETF Sold out 0.00% −0.15
UBER Uber Technologies Inc. Reduce -0.4% 1.09% −0.14
DBEF Xtrackers MSCI Eafe Hedged E Reduce -2.6% 0.96% −0.14
NFLX Netflix Inc. Sold out 0.00% −0.13
WFC Wells Fargo & Co. Reduce -24.3% 0.25% −0.12
MELI MercadoLibre Inc. Sold out 0.00% −0.11
ABNB Airbnb Inc. Class A Sold out 0.00% −0.11
QQQ Invesco QQQ Trust Series 1 Reduce -10.8% 0.44% −0.10
VOOG Vanguard S&P 500 Growth ETF Reduce -28.0% 0.18% −0.09
IVV iShares Core S&P 500 ETF Reduce -36.0% 0.10% −0.07
V Visa Inc. Class A Reduce -18.3% 0.14% −0.07
SPY SS SPDR S&P 500 ETF Trust-US Reduce -3.0% 0.51% −0.07
ABT Abbott Laboratories Reduce -23.6% 0.10% −0.06
T AT&T Inc. Reduce -3.6% 0.20% −0.05
PG The Procter & Gamble Co. Reduce -0.1% 0.21% −0.05
MRK Merck & Co. Inc. Reduce -9.0% 0.18% −0.04
HON Honeywell International Inc. Reduce -0.1% 0.11% −0.03
ORCL Oracle Corp. Reduce -15.6% 0.26% −0.02
SHV iShares 0-1 Year Treasury Bo Reduce -11.6% 0.17% −0.00
GOOG Alphabet Inc. Class C Reduce -1.6% 0.50% +0.06
GOOGL Alphabet Inc. Class A Reduce -2.6% 1.18% +0.14

Portfolio Buys Q2 2025 → Q3 2025
AMD Advanced Micro Devices Add +20.4% 9.23% +1.28
BABA Alibaba Group Holding-SP ADR Add +38.4% 2.60% +1.19
NVDA Nvidia Corp. Add +1.6% 50.43% +0.77
GLD SPDR Gold Shares New 0.75% +0.75
BMNR Bitmine Immersion Technologi New 0.48% +0.48
TSM Taiwan Semiconductor-SP ADR New 0.42% +0.42
TIP iShares Tips Bond ETF New 0.31% +0.31
EMB iShares JP Morgan Usd Emergi New 0.23% +0.23
IEF iShares 7-10 Year Treasury B Add +82.3% 0.50% +0.18
AVGO Broadcom Inc. Add +77.3% 0.39% +0.17
USFR Wisdomtree Floating Rate Tre New 0.14% +0.14
MRVL Marvell Technology Inc. Add +16.6% 1.40% +0.09
LQD Ishr Ibx Usd Invgd CB ETF-Ui Add +26.0% 0.31% +0.02
SLQD iShares 0-5 YR Inv GRD Corp. Add +23.3% 0.33% +0.02
BIL SS SPDR BB 1-3M T-Bill ETF Add +8.2% 0.21% −0.02
IEI iShares 3-7 Year Treasury Bo Add +10.7% 0.45% −0.03
COST Costco Wholesale Corp. Add +8.8% 0.22% −0.04
MINT PIMCO Enhanced Short Maturit Add +1.5% 0.30% −0.05
WMT Walmart Inc. Add +1.6% 0.71% −0.07
BRK.B Berkshire Hathaway Inc. Class B Add +5.3% 1.02% −0.09
QCOM Qualcomm Inc. Add +2.9% 2.56% −0.25
MSFT Microsoft Corp. Add +5.1% 5.21% −0.41

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 83$318.6MNVDA, AMD, MRVL, MSFT, SPY
Q1 2026 83$241.9MNVDA, AMD, MSFT, SPY, QUAL
Q4 2025 77$233.2MNVDA, AMD, MSFT, QCOM, IWF
Q3 2025 76$227.4MNVDA, AMD, MSFT, BABA, QCOM
Q2 2025 76$192.4MNVDA, AMD, MSFT, QCOM, IWF
Q1 2025 59$172.9MNVDA, AMD, MSFT, BABA, QCOM
Q4 2024 61$203.9MNVDA, AMD, MSFT, QCOM, VLO
Q3 2024 64$208.6MNVDA, AMD, MSFT, QCOM, BABA
Q2 2024 60$206.3MNVDA, AMD, MSFT, QCOM, VLO
Q1 2024 59$183.1MNVDA, AMD, MSFT, VLO, MRO