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GAMMA Investing LLC — 13F Holdings & Portfolio

CIK 2010235 · latest 13F-HR filed 2026-07-07

Backtest portfolio

GAMMA Investing LLC manages $2.69B in 13F-reported U.S. long-equity assets across 4,173 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (5.08%), AAPL (4.49%), MSFT (2.76%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 196 new positions, exited 133, added to 2,614, and trimmed 959.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
1172 DOVER LN
FOSTER CITY, CA 94404
Phone
+1 (914) 354-7087
Filing Manager
GAMMA Investing LLC
FOSTER CITY, CA
Signatory
Lorraine Fang
CEO
Loading holdings…
AUM

$2.69B

Long-equity book

Holdings

4,173

Distinct positions

Period

2026-06-30

Filed 2026-07-07

Q/Q Activity

+196 / −133 / ↑2614 / ↓959

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • MICRON TECHNOLOGY INC COM$29.4M +305.6%
  • NVIDIA CORPORATION COM$27.7M +25.5%
  • APPLE INC COM$26.0M +27.4%
  • ALPHABET INC CAP STK CL A$17.5M +39.1%
  • ADVANCED MICRO DEVICES INC COM$17.3M +250.5%
Show all 2614 →

Top Trims

  • NETFLIX INC COM-$3.9M -32.6%
  • EXXON MOBIL CORP COM-$3.6M -17.4%
  • AT T INC COM-$2.5M -38.3%
  • HONEYWELL INTL INC COM-$2.4M -99.9%
  • ISHARES TR MSCI CHINA ETF-$2.2M -22.4%
Show all 959 →

New Positions

  • HONEYWELL INTL INC COM$1.3M
  • HONEYWELL AEROSPACE INC COM$1.2M
  • CARNIVAL CORP LTD COMMON SHARES$1.2M
  • DUPONT DE NEMOURS INC COMMON STOCK$1.1M
  • KIOXIA HLDGS CORP UNSPONSORED ADR$553.3K
Show all 196 →

Exited Positions

  • COTERRA ENERGY INC COM$1.2M
  • HOLOGIC INC COM$1.2M
  • DUPONT DE NEMOURS INC COM$1.1M
  • CARNIVAL CORP COMMON STOCK$890.1K
  • AIR LEASE CORP CL A$504.1K
Show all 133 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION COM NVDA 67066G104 $136.5M 5.08% 682,255 SH
2 APPLE INC COM AAPL 037833100 $120.7M 4.49% 417,210 SH
3 MICROSOFT CORP COM MSFT 594918104 $74.2M 2.76% 199,013 SH
4 AMAZON COM INC COM AMZN 023135106 $62.3M 2.32% 261,491 SH
5 ALPHABET INC CAP STK CL A GOOGL 02079K305 $62.2M 2.32% 174,106 SH
6 BROADCOM INC COM AVGO 11135F101 $56.9M 2.12% 150,698 SH
7 ALPHABET INC CAP STK CL C GOOG 02079K107 $47.8M 1.78% 135,341 SH
8 ISHARES INC CORE MSCI EMKT IEMG 46434G103 $44.2M 1.64% 532,958 SH
9 MICRON TECHNOLOGY INC COM MU 595112103 $39.1M 1.45% 33,841 SH
10 JPMORGAN CHASE CO COM JPM 46625H100 $37.4M 1.39% 114,132 SH
11 META PLATFORMS INC CL A META 30303M102 $31.5M 1.17% 55,991 SH
12 ELI LILLY CO COM LLY 532457108 $31.0M 1.15% 25,845 SH
13 TESLA INC COM TSLA 88160R101 $29.7M 1.10% 70,538 SH
14 ISHARES TR NATIONAL MUN ETF MUB 464288414 $27.0M 1.00% 250,754 SH
15 ADVANCED MICRO DEVICES INC COM AMD 007903107 $24.2M 0.90% 41,702 SH
16 BERKSHIRE HATHAWAY INC DEL CL B NEW BRK.B 084670702 $24.2M 0.90% 48,397 SH
17 ISHARES TR SHRT NAT MUN ETF SUB 464288158 $23.6M 0.88% 221,849 SH
18 VANGUARD BD INDEX FDS INTERMED TERM BIV 921937819 $22.9M 0.85% 298,924 SH
19 VISA INC COM CL A V 92826C839 $20.7M 0.77% 60,455 SH
20 JOHNSON JOHNSON COM JNJ 478160104 $19.9M 0.74% 78,530 SH
21 APPLIED MATLS INC COM AMAT 038222105 $17.9M 0.67% 24,813 SH
22 LAM RESEARCH CORP COM NEW LRCX 512807306 $17.3M 0.64% 39,912 SH
23 ABBVIE INC COM ABBV 00287Y109 $17.1M 0.64% 68,002 SH
24 EXXON MOBIL CORP COM XOM 30231G102 $17.0M 0.63% 124,605 SH
25 CISCO SYS INC COM CSCO 17275R102 $16.7M 0.62% 142,415 SH
26 WALMART INC COM WMT 931142103 $16.6M 0.62% 146,221 SH
27 INTEL CORP COM INTC 458140100 $15.9M 0.59% 113,634 SH
28 CATERPILLAR INC COM CAT 149123101 $15.7M 0.58% 14,723 SH
29 SPDR SERIES TRUST ST SHOR CORP ETF SPSB 78464A474 $14.3M 0.53% 476,603 SH
30 SANDISK CORP COM SNDK 80004C200 $13.1M 0.49% 5,781 SH
31 HOME DEPOT INC COM HD 437076102 $12.5M 0.47% 35,571 SH
32 UNITEDHEALTH GROUP INC COM UNH 91324P102 $12.5M 0.46% 30,011 SH
33 MERCK CO INC COM MRK 58933Y105 $12.2M 0.45% 94,992 SH
34 COSTCO WHOLESALE CORPORATION COM COST 22160K105 $11.9M 0.44% 12,763 SH
35 GE AEROSPACE COM NEW GE 369604301 $11.7M 0.43% 31,192 SH
36 MASTERCARD INCORPORATED CL A MA 57636Q104 $11.6M 0.43% 22,581 SH
37 KLA CORP COM NEW KLAC 482480100 $11.3M 0.42% 37,363 SH
38 GE VERNOVA INC COM GEV 36828A101 $11.0M 0.41% 9,336 SH
39 GOLDMAN SACHS GROUP INC COM GS 38141G104 $10.7M 0.40% 10,612 SH
40 COCA COLA CO COM KO 191216100 $10.7M 0.40% 131,706 SH
41 BANK OF AMER CORP COM BAC 060505104 $10.0M 0.37% 175,459 SH
42 AMPHENOL CORP CL A APH 032095101 $9.7M 0.36% 54,882 SH
43 PALO ALTO NETWORKS INC COM PANW 697435105 $9.2M 0.34% 27,094 SH
44 RTX CORPORATION COM RTX 75513E101 $8.9M 0.33% 46,995 SH
45 PHILIP MORRIS INTL INC COM PM 718172109 $8.9M 0.33% 49,012 SH
46 CHEVRON CORPORATION COM CVX 166764100 $8.8M 0.33% 53,368 SH
47 PROCTER GAMBLE CO COM PG 742718109 $8.8M 0.33% 60,218 SH
48 ISHARES INC MSCI CDA ETF EWC 464286509 $8.8M 0.33% 153,123 SH
49 MORGAN STANLEY COM NEW MS 617446448 $8.3M 0.31% 39,630 SH
50 INTERNATIONAL BUSINESS MACHS COM IBM 459200101 $8.1M 0.30% 28,756 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-07-07 $2.69B 4,173 0002010235-26-000005
2026-03-31 2026-04-06 $2.14B 4,110 0002010235-26-000003
2025-12-31 2026-01-05 $1.99B 4,094 0002010235-26-000001