Q2 2026 13F · SEC CIK 1954929

Summa Corp.

Wealth managerFiled 2026-08-06 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $318.6M
Reported positions: 83
Top holdings a year, 3 yrs: +36.6%
Assets under management: $1.6B

Summa Corp. is a wealth manager that reported 83 positions worth $318.6M in its Q2 2026 13F, filed 2026-08-06. Its largest holdings were Nvidia Corporation (NVDA, 37.1%), Advanced Micro Devices Inc (AMD, 21.1%), Marvell Technology Inc (MRVL, 4.7%). A portfolio copying its top holdings returned 36.6% a year over the last 3 years, against 16.7% for the S&P 500.

Summa Corp. holdings largest 50 of 83 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Summa Corp. 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
NVDANvidia Corporation	37.1%	45.8%	590,160	-7.1%	$118.1M
AMDAdvanced Micro Devices Inc	21.1%	10.3%	115,529	-5.7%	$67.1M
MRVLMarvell Technology Inc	4.7%	1.7%	50,000	+19.0%	$14.9M
MSFTMicrosoft Corp	2.7%	3.5%	22,948	+1.0%	$8.6M
SPYState Str Spdr S&p 500 ETF T	2.6%	3.0%	10,966	-0.2%	$8.2M
IWFIshares Tr	2.2%	2.0%	57,588	+414.6%	$7.2M
QCOMQualcomm Inc	2.0%	1.8%	35,000	+2.9%	$6.5M
QUALIshares Tr	1.9%	2.2%	28,300	+0.0%	$6.2M
AMZNAmazon Com Inc	1.7%	1.8%	22,339	+4.7%	$5.3M
VOOVanguard Index Fds	1.5%	1.7%	7,104	+2.8%	$4.9M
DBEFDbx ETF Tr	1.5%	1.6%	85,816	+9.4%	$4.7M
IWDIshares Tr	1.4%	1.2%	18,766	+40.3%	$4.5M
GINNGoldman Sachs ETF Tr	1.4%	1.0%	55,150	+55.2%	$4.3M
GOOGLAlphabet Inc	1.1%	1.2%	9,928	-3.5%	$3.5M
AAPLApple Inc	1.1%	1.3%	12,060	-3.8%	$3.5M
BRK-BBerkshire Hathaway Inc Del	0.8%	1.0%	5,367	+5.9%	$2.7M
VEAVanguard Ftse Developed Markets Index Fu	0.7%	0.9%	33,181	+0.0%	$2.4M
UBERUber Technologies Inc	0.6%	0.8%	25,929	-0.8%	$1.9M
OPRTOportun Finl Corp	0.5%	0.8%	293,266	-26.1%	$1.7M
GOOGAlphabet Inc	0.5%	0.6%	4,706	-2.9%	$1.7M
WMTWalmart Inc	0.5%	0.8%	14,537	-0.5%	$1.6M
TSMTaiwan Semiconductor Manufac	0.5%	0.5%	3,400	-5.6%	$1.6M
QQQInvesco Qqq Tr	0.4%	0.4%	1,943	+8.2%	$1.4M
VLOValero Energy Corp	0.4%	0.6%	5,400	+0.0%	$1.4M
GLDSpdr Gold Tr	0.4%	0.7%	3,788	+0.0%	$1.4M
VBVanguard Index Fds	0.4%	0.5%	4,577	+0.0%	$1.4M
IEFIshares Tr	0.4%	0.5%	13,827	+0.0%	$1.3M
SHYIshares Tr	0.4%	0.5%	15,714	+12.4%	$1.3M
MINTPimco Enhanced Short Maturity Active Exc	0.4%	0.3%	12,450	+48.2%	$1.3M
JPMJpmorgan Chase & Co	0.4%	0.5%	3,600	-5.3%	$1.2M
EMBIshares Tr	0.4%	0.5%	12,175	+0.0%	$1.2M
SLQDIshares Tr	0.3%	0.3%	18,000	+21.6%	$907K
XOMExxon Mobil Corp	0.3%	0.5%	6,600	+0.0%	$902K
AGGIshares Tr	0.3%	0.3%	8,550	+21.3%	$846K
IDVIshares Tr	0.3%	—	20,022	—	$830K
AVGOBroadcom Inc	0.2%	0.3%	2,000	-19.2%	$756K
VCSHVanguard Scottsdale Fds	0.2%	0.3%	9,500	+0.0%	$751K
JNJJohnson & Johnson	0.2%	0.3%	2,910	-3.6%	$739K
IEIIshares Tr	0.2%	0.4%	6,170	-25.5%	$725K
TIPIshares Tr	0.2%	0.3%	6,430	+0.0%	$704K
MRKMerck & Co Inc	0.2%	0.3%	5,360	+0.0%	$689K
VWOBVanguard Whitehall Fds	0.2%	0.3%	10,000	+0.0%	$672K
AAXJIshares Tr Msci Ac Asia ETF	0.2%	0.2%	5,500	+0.0%	$656K
BILSpdr Series Trust	0.2%	0.3%	7,100	+0.1%	$651K
ORealty Income Corp.	0.2%	0.3%	10,500	+0.0%	$651K
VYMVanguard Whitehall Fds	0.2%	0.2%	4,000	+0.0%	$632K
TMOThermo Fisher Scientific Inc	0.2%	—	1,253	—	$628K
IWOIshares Tr	0.2%	—	1,585	—	$624K
ABBVAbbvie Inc	0.2%	—	2,400	—	$604K
METAMeta Platforms Inc	0.2%	0.2%	1,058	+8.8%	$596K

What Summa Corp. bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +17.5% /yr; S&P 500 +11.7%
3 years: +36.6% /yr; S&P 500 +16.7%
5 years: —

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$318.6M	83
Q1 2026	$241.9M	83
Q4 2025	$233.2M	77
Q3 2025	$227.4M	76
Q2 2025	$192.4M	76
Q1 2025	$172.9M	59
Q4 2024	$203.9M	61
Q3 2024	$208.6M	64
Q2 2024	$206.3M	60
Q1 2024	$183.1M	59
Q4 2023	$142.9M	60

Questions about Summa Corp.'s portfolio

What stocks does Summa Corp. own?

Summa Corp.'s latest 13F, for Q2 2026 and filed Aug 6, 2026, lists 83 positions worth $318.6M. The largest are Nvidia Corporation (NVDA) at 37.1%, Advanced Micro Devices Inc (AMD) at 21.1%, Marvell Technology Inc (MRVL) at 4.7%, Microsoft Corp (MSFT) at 2.7% and State Str Spdr S&p 500 ETF T (SPY) at 2.6%.

What did Summa Corp. buy last quarter?

In Q2 2026, Summa Corp. added Ishares Tr (IWF) (+414.6% shares), Goldman Sachs ETF Tr (GINN) (+55.2% shares) and Pimco Enhanced Short Maturity Active Exc (MINT) (+48.2% shares), compared with its Q1 2026 filing.

What did Summa Corp. sell last quarter?

In Q2 2026, Summa Corp. cut from its top 50 Mastercard Incorporated (MA), cut from its top 50 Enterprise Prods Partners L (EPD), cut from its top 50 Pimco ETF Tr (PYLD), cut from its top 50 Vanguard Long-Term Corporate Bond ETF (VCLT), Oportun Finl Corp (OPRT) (-26.1% shares), Ishares Tr (IEI) (-25.5% shares) and Broadcom Inc (AVGO) (-19.2% shares), compared with its Q1 2026 filing.

How has Summa Corp.'s portfolio performed?

A portfolio copying Summa Corp.'s 20 largest 13F holdings each quarter, from the day each filing was public, returned +36.6% a year over the last 3 years, against +16.7% for the S&P 500. Over 1 year: +17.5% against +11.7%.

When is Summa Corp.'s next 13F filing due?

13F filings are due 45 days after each quarter ends. Summa Corp.'s filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Summa Corp. manage?

Summa Corp. reported $1.6B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $318.6M.