GAMMA Investing LLC

Registered adviser

CIK

2010235

Location

FOSTER CITY, CA

Portfolio Value

Mid $2,776,925,588

Diversification

Diversified

Filing Date

Global Rank

#1,365 / 8,818 ▲ 82 · as of Jun 2026

Top Industry

Semiconductors 14.1%

Period ended 28 days ago

Filed Oct 8, 2026 · 20d

12 quarters · since Dec 2023

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 312573

Roster of Oct 1, 2026

Regulatory AUM

$2,282,120,118

Main clients

Other investment advisers (100% of AUM)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$2,282,120,118	Other investment advisers (100%)
Apr 2025 to Mar 2026	$1,416,839,101	Other investment advisers (99%)
Oct 2024 to Mar 2025	$1,006,044,574	Other investment advisers (99%)
Jul 2024 to Sep 2024	$705,421,506	Other investment advisers (98%)
Apr 2024 to Jun 2024	$445,133,271	Other investment advisers (97%)
Oct 2023 to Mar 2024	$204,286,099	Other investment advisers (95%)

3 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Index-like

Active share 18.9% against every 13F filer's combined book, across 3,319 stocks (index-like at 20% or less with 100+ stocks)

Turnover

Low turnover

7.4% over the last four quarters (under 30%)

Horizon

Medium horizon

Value-weighted holding period 10.8 quarters (4 to under 12)

Closest benchmark: every 13F filer's combined book, active share 18.9%; sector active share 4.1% against the combined 13F book's sector weights.

Over time 11 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

3,811 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

6.2%

+0.0 pts

Top 5

23.9%

+0.8 pts

Top 10

33.0%

+1.2 pts

HHI

153

Diversified+6

Portfolio Trend

12 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Technology	33.5%	$931,516,216	489
Financial Services	12.1%	$335,263,647	576
Healthcare	9.2%	$255,898,283	596
Industrials	8.9%	$246,019,765	481
Consumer Cyclical	7.7%	$214,615,205	358
Unclassified	7.6%	$211,312,583	381
Communication Services	7.6%	$209,879,170	157
Consumer Defensive	4.2%	$116,770,984	152
Energy	3.8%	$105,594,198	161
Utilities	2.0%	$55,447,726	92
Basic Materials	1.8%	$49,148,715	175
Real Estate	1.6%	$45,459,096	193

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
—		+103,855	130,519	$0
—		+100,465	179,586	$0
NVDA	Nvidia Corp	+66,819	749,074	$171,073,520
APH	Amphenol Corp	+66,452	121,334	$10,228,456
IEMG	iShares Trust	+62,305	595,263	$0
—		+62,294	84,277	$0
VCSH	VANGUARD SHORT-TERM CORPORATE BOND INDEX FUND	+57,481	77,414	$5,980,231
AAPL	Apple Inc.	+44,789	461,999	$153,854,906
MNST	Monster Beverage Corp	+41,195	77,525	$3,226,590
GETYQ	Getty Images Holdings, Inc.	+40,610	45,942	$3,946
EWC	iShares Trust	+32,787	185,910	$0
MSFT	Microsoft Corp	+31,086	230,099	$118,017,777
SPSB	State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF	+30,998	507,601	$15,019,913
AMZN	Amazon Com Inc	+27,691	289,182	$72,049,695
VTRS	Viatris Inc	+25,403	69,035	$1,223,300
T	At&T Inc.	+25,075	216,769	$5,289,163
SAN	Banco Santander, S.A.	+24,701	109,973	$1,520,926
CRWD	CrowdStrike Holdings, Inc.	+24,342	31,395	$8,311,826
CAG	Conagra Brands Inc.	+23,460	75,124	$1,009,666
PFE	Pfizer Inc	+21,561	107,263	$3,059,140
CDE	Coeur Mining, Inc.	+20,360	37,520	$660,352
ABR	Arbor Realty Trust Inc	+20,336	27,468	$106,026
SMTOY	Sumitomo Electric Industries Ltd	+19,993	22,913	$166,806
NAVI	Navient Corp	+19,374	50,081	$454,234
DH	Definitive Healthcare Corp.	+17,397	17,656	$15,978
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
WIT	Wipro Ltd	−66,071	12,550	$20,707
BIV	Vanguard Bond Index Funds	−63,369	235,555	$17,162,537
MUB	iShares National Muni Bond ETF	−29,593	221,161	$22,359,377
LPL	LG Display Co., Ltd.	−28,265	58,837	$173,569
FLO	Flowers Foods Inc	−13,651	27,515	$152,708
PCG	PG&E Corp	−12,246	11,899	$145,762
SID	National Steel Co	−11,531	13,650	$14,469
AMTD	Amtd Idea Group	−10,930	168	$131
HEPS	D-MARKET Electronic Services & Trading	−10,347	20,992	$51,640
MUNI	PIMCO Intermediate Municipal Bond Active Exchange-Traded Fund	−9,899	70,140	$3,485,256
SMPL	Simply Good Foods Co	−8,925	4,669	$44,308
RDY	Dr Reddys Laboratories Ltd	−8,843	6,079	$76,716
MREO	Mereo BioPharma Group plc	−7,317	1,991	$800
RDHL	RedHill Biopharma Ltd.	−6,670	287	$137
FUN	Six Flags Entertainment Corporation	−6,619	1,504	$16,107
AHCO	AdaptHealth Corp.	−6,128	9,171	$51,724
FCPT	Four Corners Property Trust, Inc.	−5,600	5,480	$119,244
GPK	Graphic Packaging Holding Co	−5,443	34,787	$314,822
ALIT	Alight, Inc. / Delaware	−5,429	690	$6,154
HKD	AMTD Digital Inc.	−5,424	22,139	$39,628
RWT	Redwood Trust Inc	−5,414	3,967	$15,391
NVX	NOVONIX Ltd	−5,383	68	$178
FBRT	Franklin BSP Realty Trust, Inc.	−5,150	3,324	$21,240
CLVT	Clarivate PLC	−5,023	4,230	$7,064
SMSGY	Samsonite International SA	−5,019	277	$2,265
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
DFKUY	Daifuku Co., Ltd.	12,143	$220,274
ITM	VanEck Intermediate Muni ETF	3,761	$165,484
MBGL	Mobility Global Inc.	7,051	$120,924
CHLSY	Chocoladefabriken Lindt & Spruengli AG	7,717	$71,613
JHMM	John Hancock Multifactor Mid Cap ETF	966	$69,069
TYHOY	Toyota Tsusho Corporation	2,897	$66,457
ENLT	Enlight Renewable Energy Ltd.	851	$59,067
ADIG	Adi Global Distribution Inc.	3,185	$57,075
MFP	Midera Food Processing, Inc.	1,296	$52,902
DTD	WisdomTree U.S. Total Dividend Fund	510	$47,644
WAVE	Eco Wave Power Global AB (publ)	7,067	$42,402
VIOO	VANGUARD S&P SMALL-CAP 600 INDEX FUND	329	$41,625
EIPI	FT Energy Income Partners Enhanced Income ETF	1,672	$35,596
TYOYY	Taiyo Yuden Co Ltd	2,196	$32,369
PSNYW	Polestar Automotive Holding UK PLC	7,418	$32,268
IYF	iShares U.S. Financials ETF	255	$32,043
IQMX	IQM Quantum Computers Oyj	2,943	$30,518
CSAN	Cosan S.A.	8,022	$24,146
XSOE	WisdomTree Emerging Markets ex-State-Owned Enterprises Fund	488	$22,862
AKTX	Akari Therapeutics Plc	2,411	$22,422
CWB	State Street(R) SPDR(R) Bloomberg Convertible Securities ETF	221	$22,360
SDVY	First Trust SMID Cap Rising Dividend Achievers ETF	542	$21,994
AZUL	Azul SA	2,414	$19,070
ROCY	JPMorgan Equity Premium Yield ETF	310	$17,059
MROSY	Melrose Industries Plc	1,272	$16,357
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
—		11,645	$2,387,690
—		6,010	$459,284
—		2,203	$415,684
—		1,568	$327,618
—		5,970	$310,141
—		624	$221,226
TWOD	Two Harbors Investment Corp.	7,162	$178,691
—		3,610	$160,537
—		4,150	$130,435
—		6,486	$122,975
—		1,660	$119,088
—		6,565	$108,388
SKYD	Skydance Corp	10,866	$107,139
—		6,800	$79,628
—		3,190	$79,367
—		1,862	$73,213
—		523	$64,591
—		2,454	$64,319
AMRZ	Amrize Ltd	955	$50,901
ETV	Eaton Vance Tax-Managed Buy-Write Opportunities Fund	2,971	$44,208
—		1,266	$44,082
—		309	$41,013
—		822	$27,356
CGSD	Capital Group Short Duration Income ETF	1,043	$26,836
DBRHP	DigitalBridge Group, Inc.	1,584	$23,617
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

3,811 tracked positions · $2,776,925,588 total · filing declares 4,329 positions · $2,956,043,703 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 3,811 positions by value · page 1 of 77

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Added	749,074	+66,819	$171,073,520	+25.3%	6.16%
AAPL	Apple Inc. Technology	Added	461,999	+44,789	$153,854,906	+27.4%	5.54%
MSFT	Microsoft Corp Technology	Added	230,099	+31,086	$118,017,777	+59.0%	4.25%
AMZN	Amazon Com Inc Consumer Cyclical	Added	289,182	+27,691	$72,049,695	+15.6%	2.59%
GOOGL	Alphabet Inc. Communication Services	Added	189,985	+15,879	$65,370,038	+5.1%	2.35%
AVGO	Broadcom Inc. Technology	Added	157,350	+6,652	$55,259,746	−2.9%	1.99%
GOOG	Alphabet Inc. Communication Services	Added	147,309	+11,968	$50,194,068	+5.0%	1.81%
META	Meta Platforms, Inc. Communication Services	Added	63,449	+7,458	$46,011,945	+45.9%	1.66%
JPM	Jpmorgan Chase & Co Financial Services	Added	123,853	+9,721	$40,974,287	+9.7%	1.48%
MU	Micron Technology Inc Technology	Added	36,827	+2,986	$39,224,805	+0.4%	1.41%
LLY	ELI LILLY & Co Healthcare	Added	28,383	+2,538	$32,841,401	+5.9%	1.18%
AMD	Advanced Micro Devices Inc Technology	Added	45,356	+3,654	$27,746,986	+14.5%	1.00%
BRK-B	Berkshire Hathaway Inc Financial Services	Added	54,069	+5,672	$26,923,658	+11.2%	0.97%
TSLA	Tesla, Inc. Consumer Cyclical	Added	72,599	+2,061	$25,758,851	−13.2%	0.93%
SUB	iShares Short-Term National Muni Bond ETF	Added	230,745	+8,896	$24,122,082	+2.1%	0.87%
V	Visa Inc. Financial Services	Added	66,520	+6,065	$23,902,631	+15.2%	0.86%
JNJ	Johnson & Johnson Healthcare	Added	84,832	+6,302	$22,458,423	+12.6%	0.81%
MUB	iShares National Muni Bond ETF	Reduced	221,161	-29,593	$22,359,377	−17.1%	0.81%
XOM	ExxonMobil Holdings Corp Energy	Added	135,832	+11,227	$22,106,658	+29.8%	0.80%
ABBV	AbbVie Inc. Healthcare	Added	75,060	+7,058	$19,634,945	+14.7%	0.71%
BIV	Vanguard Bond Index Funds	Reduced	235,555	-63,369	$17,162,537	−25.1%	0.62%
WMT	Walmart Inc. Consumer Defensive	Added	149,412	+3,191	$15,526,895	−6.2%	0.56%
CSCO	Cisco Systems, Inc. Technology	Added	143,105	+690	$15,402,391	−7.9%	0.55%
SPSB	State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF	Added	507,601	+30,998	$15,019,913	+5.0%	0.54%
MRK	Merck & Co., Inc. Healthcare	Added	100,519	+5,527	$14,606,415	+19.7%	0.53%
INTC	Intel Corp Technology	Added	119,474	+5,840	$14,364,359	−9.5%	0.52%
LRCX	Lam Research Corp Technology	Added	43,060	+3,148	$14,145,640	−18.2%	0.51%
MA	Mastercard Inc Financial Services	Added	24,890	+2,309	$13,726,088	+18.4%	0.49%
AMAT	Applied Materials Inc Technology	Added	25,923	+1,110	$13,256,503	−26.1%	0.48%
CAT	Caterpillar Inc Industrials	Added	15,749	+1,026	$12,769,131	−18.6%	0.46%
KO	Coca Cola Co Consumer Defensive	Added	146,525	+14,819	$12,612,872	+17.8%	0.45%
CVX	Chevron Corp Energy	Added	57,206	+3,838	$11,682,037	+32.1%	0.42%
PANW	Palo Alto Networks Inc Technology	Added	29,037	+1,943	$11,536,690	+24.9%	0.42%
COST	Costco Wholesale Corp Consumer Defensive	Reduced	12,350	-413	$11,242,699	−5.8%	0.40%
UNH	Unitedhealth Group Inc Healthcare	Reduced	29,681	-330	$10,895,301	−12.7%	0.39%
PLTR	Palantir Technologies Inc. Technology	Added	58,170	+12,975	$10,880,698	+106.4%	0.39%
APH	Amphenol Corp Technology	Added	121,334	+66,452	$10,228,456	+5.7%	0.37%
PM	Philip Morris International Inc. Consumer Defensive	Added	53,168	+4,156	$10,145,517	+14.4%	0.37%
GE	General Electric Co Industrials	Added	32,468	+1,276	$10,139,431	−13.0%	0.37%
SNDK	Sandisk Corp Technology	Added	5,786	+5	$10,067,003	−23.4%	0.36%
BAC	Bank Of America Corp Financial Services	Added	184,012	+8,553	$10,015,773	+0.2%	0.36%
GS	Goldman Sachs Group Inc Financial Services	Added	10,675	+63	$9,611,343	−10.4%	0.35%
PG	PROCTER & GAMBLE Co Consumer Defensive	Added	64,339	+4,121	$9,347,169	+5.9%	0.34%
GEV	GE Vernova Inc. Industrials	Added	9,787	+451	$9,302,445	−15.2%	0.33%
RTX	RTX Corp Industrials	Added	49,582	+2,587	$9,204,898	+3.2%	0.33%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	31,772	-3,799	$9,038,816	−27.9%	0.33%
ANET	Arista Networks, Inc. Technology	Added	42,000	+6,323	$8,550,780	+41.1%	0.31%
NFLX	Netflix Inc Communication Services	Added	122,727	+10,664	$8,539,344	+6.7%	0.31%
AMGN	Amgen Inc Healthcare	Added	19,951	+1,556	$8,409,546	+26.2%	0.30%
TXN	Texas Instruments Inc Technology	Added	29,697	+3,003	$8,317,832	+4.5%	0.30%

Showing the top 50 of 3,811 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.