BAMCO INC /NY/

CIK

1017918

Location

NEW YORK, NY

Portfolio Value

Large $32,728,039,692

Diversification

Diversified

Filing Date

Global Rank

#193 / 8,621 ▼ 7 · as of Mar 2026

Top Industry

Auto Manufacturers 13.6%

3Y Alpha vs SPY

-16.5%

Period ended 4 months ago

Filed May 15, 2026 · 2mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+14.5%

SPY

+67.9%

Annualised alpha

-14.2%

Max drawdown

−25.2%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

320 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

13.6%

−1.2 pts

Top 5

28.8%

−1.9 pts

Top 10

42.0%

−1.6 pts

HHI

328

Diversified−26

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Consumer Cyclical	34.0%	$11,130,324,284	45
Financial Services	21.5%	$7,044,916,597	50
Technology	17.4%	$5,710,618,721	68
Industrials	8.5%	$2,768,797,363	35
Healthcare	7.5%	$2,446,890,853	64
Real Estate	6.7%	$2,206,200,602	32
Communication Services	3.2%	$1,060,303,265	12
Basic Materials	0.7%	$218,758,937	7
Consumer Defensive	0.3%	$99,009,890	5
Energy	0.1%	$42,219,180	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
ONON	On Holding AG	+4,309,119	9,714,605	$330,490,862
SHOP	Shopify Inc.	+2,429,960	4,718,230	$559,676,442
IT	Gartner Inc	+1,704,659	5,917,616	$936,995,317
INDI	indie Semiconductor, Inc.	+1,632,084	23,337,826	$75,147,799
HTFL	Heartflow, Inc.	+1,523,654	3,827,531	$93,123,829
XP	XP Inc.	+1,479,094	2,674,571	$50,923,831
GWRE	Guidewire Software, Inc.	+1,449,903	6,597,453	$986,715,070
RKT	Rocket Companies, Inc.	+1,429,974	2,828,334	$40,303,759
BIRK	Birkenstock Holding plc	+1,400,031	9,366,068	$335,586,216
FIG	Figma, Inc.	+1,302,204	2,052,204	$43,383,592
VRSK	Verisk Analytics, Inc.	+1,209,365	2,511,976	$476,647,446
IOT	Samsara Inc.	+999,804	5,119,835	$162,247,571
JEF	Jefferies Financial Group Inc.	+933,700	1,530,228	$63,152,509
WAY	Waystar Holding Corp.	+931,935	2,325,569	$56,069,468
RRR	Red Rock Resorts, Inc.	+892,954	13,412,846	$715,709,462
FDS	Factset Research Systems Inc	+867,742	3,756,587	$815,141,813
NTSK	Netskope Inc	+842,335	3,824,078	$32,466,422
GDS	GDS Holdings Ltd	+812,398	4,597,246	$185,223,041
MAC	Macerich Co	+798,432	4,084,693	$77,200,697
DT	Dynatrace, Inc.	+660,194	2,159,694	$79,865,484
BLLN	BillionToOne, Inc.	+571,485	741,485	$58,532,825
ARQT	Arcutis Biotherapeutics, Inc.	+567,489	1,072,189	$25,260,772
MIR	Mirion Technologies, Inc.	+563,748	1,213,748	$22,563,575
ABNB	Airbnb, Inc.	+561,145	1,441,221	$181,997,387
TEM	Tempus AI, Inc.	+543,832	899,278	$40,665,351
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
CWAN	Clearwater Analytics Holdings, Inc.	−7,661,583	154,864	$3,662,533
CSGP	Costar Group, Inc.	−3,183,924	16,314,175	$658,113,819
YMM	Full Truck Alliance Co. Ltd.	−1,588,265	4,184,358	$34,730,171
CPNG	Coupang, Inc.	−1,464,837	2,809,513	$53,043,605
ODD	Oddity Tech Ltd	−1,291,085	62,630	$837,989
ACGL	Arch Capital Group Ltd.	−1,277,746	16,709,759	$1,603,969,766
INTA	Intapp, Inc.	−1,183,719	2,144,270	$55,086,296
STUB	StubHub Holdings, Inc.	−1,021,896	1,931,317	$12,051,418
FROG	JFrog Ltd	−873,205	620,313	$29,111,289
BN	BROOKFIELD Corp /ON/	−730,407	2,905,510	$117,585,989
ALKT	Alkami Technology, Inc.	−675,029	2,308,036	$36,166,924
TECH	BIO-TECHNE Corp	−646,058	561,441	$29,340,906
KRMN	Karman Holdings Inc.	−635,128	1,279,093	$102,391,394
S	SentinelOne, Inc.	−628,392	1,908,204	$24,577,667
SAIL	SailPoint, Inc.	−606,196	292,597	$3,873,984
IBKR	Interactive Brokers Group, Inc.	−596,000	4,047,376	$271,457,508
BAM	Brookfield Asset Management Ltd.	−586,799	398,072	$17,694,300
DRVN	Driven Brands Holdings Inc.	−500,065	4,500,196	$56,747,471
NEOG	Neogen Corp	−500,000	5,009,659	$46,539,732
KTOS	Kratos Defense & Security Solutions, Inc.	−494,378	715,395	$50,442,501
BX	Blackstone Inc.	−485,411	94,599	$10,877,939
MORN	Morningstar, Inc.	−482,279	759,515	$128,396,010
PONY	Pony AI Inc.	−460,938	2,125,643	$20,066,069
DKNG	DraftKings Inc.	−455,689	4,218,766	$91,209,720
BABA	Alibaba Group Holding Ltd	−436,107	635,540	$79,734,848
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
FPS	Forgent Power Solutions, Inc.	4,674,583	$136,825,044
PSA	Public Storage	266,847	$72,283,515
IRM	Iron Mountain Inc	525,270	$53,651,077
CZR	Caesars Entertainment, Inc.	1,643,199	$43,429,749
VIST	Vista Energy, S.A.B. de C.V.	530,237	$40,016,986
MGM	MGM Resorts International	996,534	$36,881,723
BBD	Bank Bradesco	10,083,509	$36,804,807
PENN	PENN Entertainment, Inc.	2,092,244	$31,446,427
OFRM	Once Upon a Farm, PBC	1,749,858	$28,610,178
UDR	UDR, Inc.	772,594	$26,098,225
SHW	Sherwin Williams Co	70,846	$22,709,685
IRTC	iRhythm Holdings, Inc.	183,900	$21,703,878
AXGN	Axogen, Inc.	643,743	$21,327,205
VSEC	Vse Corp	75,011	$13,832,028
EPRT	Essential Properties Realty Trust, Inc.	434,808	$13,200,770
AZN	Astrazeneca PLC	63,835	$12,589,538
PEB	Pebblebrook Hotel Trust	699,157	$8,830,352
CUBE	CubeSmart	187,813	$6,883,346
NBIS	Nebius Group N.V.	54,832	$5,689,368
JAN	Janus Living, Inc.	225,000	$5,303,250
MANE	Veradermics, Inc	59,668	$3,768,034
MRK	Merck & Co., Inc.	25,000	$3,007,250
GH	Guardant Health, Inc.	32,000	$2,955,840
PANW	Palo Alto Networks Inc	17,932	$2,874,858
SEI	Solaris Energy Infrastructure, Inc.	38,970	$2,202,194
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
EXAS	EXACT SCIENCES CORP	954,547	$96,943,793
LPX	Louisiana-Pacific Corp	674,577	$54,478,838
GTLB	Gitlab Inc.	1,426,527	$53,537,558
MASI	Masimo Corp	373,899	$48,629,303
ACLX	Arcellx, Inc.	609,697	$39,752,244
FBIN	Fortune Brands Innovations, Inc.	773,799	$38,705,425
CWK	Cushman & Wakefield Ltd.	1,481,285	$23,982,004
CVCO	Cavco Industries, Inc.	37,078	$21,903,457
XPEV	Xpeng Inc.	940,642	$19,076,219
TTD	Trade Desk, Inc.	500,036	$18,981,366
ASIC	Ategrity Specialty Insurance Co Holdings	669,792	$14,072,329
DHR	Danaher Corp /De/	60,709	$13,897,504
BXP	BXP, Inc.	202,984	$13,697,360
RPAY	Repay Holdings Corp	2,000,000	$7,300,000
SHO	Sunstone Hotel Investors, Inc.	686,050	$6,133,287
KRC	Kilroy Realty Corp	142,997	$5,343,797
BSX	Boston Scientific Corp	47,000	$4,481,450
PEN	Penumbra Inc	13,926	$4,329,732
WH	Wyndham Hotels & Resorts, Inc.	56,080	$4,237,404
MCK	Mckesson Corp	5,000	$4,101,450
AAPL	Apple Inc.	14,293	$3,885,694
POOL	Pool Corp	16,621	$3,802,053
IRDM	Iridium Communications Inc.	200,000	$3,476,000
HUBS	Hubspot Inc	6,122	$2,456,758
UNH	Unitedhealth Group Inc	6,000	$1,980,660
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

320 positions · $32,728,039,692 total · as of Mar 31, 2026

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

Showing 1–50 of 320 positions by value · page 1 of 7

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
TSLA	Tesla, Inc. Consumer Cyclical	Added	11,933,509	+6,034	$4,436,281,970	−17.3%	13.55%
ACGL	Arch Capital Group Ltd. Financial Services	Reduced	16,709,759	-1,277,746	$1,603,969,766	−7.0%	4.90%
MSCI	MSCI Inc. Financial Services	Reduced	2,699,389	-56,358	$1,454,997,664	−8.0%	4.45%
GWRE	Guidewire Software, Inc. Technology	Added	6,597,453	+1,449,903	$986,715,070	−4.6%	3.01%
IT	Gartner Inc Technology	Added	5,917,616	+1,704,659	$936,995,317	−11.8%	2.86%
IDXX	Idexx Laboratories Inc /De Healthcare	Reduced	1,633,367	-164,674	$917,772,583	−24.6%	2.80%
H	Hyatt Hotels Corp Consumer Cyclical	Added	6,341,673	+235,188	$911,869,160	−6.9%	2.79%
FIGS	FIGS, Inc. Consumer Cyclical	Held	59,959,449	0	$885,601,061	+30.0%	2.71%
FDS	Factset Research Systems Inc Financial Services	Added	3,756,587	+867,742	$815,141,813	−2.8%	2.49%
CHH	Choice Hotels International Inc /De Consumer Cyclical	Added	7,690,494	+303,919	$795,966,129	+13.1%	2.43%
RRR	Red Rock Resorts, Inc. Consumer Cyclical	Added	13,412,846	+892,954	$715,709,462	−7.7%	2.19%
SCHW	Schwab Charles Corp Financial Services	Added	7,464,316	+404,007	$701,496,417	−0.6%	2.14%
KNSL	Kinsale Capital Group, Inc. Financial Services	Added	2,027,765	+246,564	$692,806,189	−0.6%	2.12%
CSGP	Costar Group, Inc. Real Estate	Reduced	16,314,175	-3,183,924	$658,113,819	−49.8%	2.01%
MTN	Vail Resorts Inc Consumer Cyclical	Reduced	5,043,533	-4,576,323	$647,186,154	−49.3%	1.98%
SPOT	Spotify Technology S.A. Communication Services	Added	1,319,525	+322,234	$639,850,867	+10.5%	1.96%
SHOP	Shopify Inc. Technology	Added	4,718,230	+2,429,960	$559,676,442	+51.9%	1.71%
NVDA	Nvidia Corp Technology	Reduced	2,919,758	-69,185	$509,205,795	−8.7%	1.56%
VRSK	Verisk Analytics, Inc. Industrials	Added	2,511,976	+1,209,365	$476,647,446	+63.6%	1.46%
BIRK	Birkenstock Holding plc Consumer Cyclical	Added	9,366,068	+1,400,031	$335,586,216	+3.0%	1.03%
ONON	On Holding AG Consumer Cyclical	Added	9,714,605	+4,309,119	$330,490,862	+31.5%	1.01%
VRT	Vertiv Holdings Co Industrials	Reduced	1,181,144	-364,428	$295,971,063	+18.2%	0.90%
SITE	SiteOne Landscape Supply, Inc. Industrials	Added	2,059,076	+30,710	$274,083,606	+8.5%	0.84%
IBKR	Interactive Brokers Group, Inc. Financial Services	Reduced	4,047,376	-596,000	$271,457,508	−9.1%	0.83%
AMZN	Amazon Com Inc Consumer Cyclical	Added	1,294,654	+69,495	$269,637,588	−4.7%	0.82%
WELL	Welltower Inc. Real Estate	Added	1,344,941	+67,449	$265,908,285	+12.1%	0.81%
EQIX	Equinix Inc Real Estate	Added	243,975	+98,546	$239,154,054	+114.6%	0.73%
PRI	Primerica, Inc. Financial Services	Reduced	860,026	-272,518	$215,419,312	−26.4%	0.66%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Added	636,267	+1,615	$215,026,432	+11.5%	0.66%
APH	Amphenol Corp /De/ Technology	Reduced	1,659,690	-51,052	$209,701,831	−9.3%	0.64%
GDS	GDS Holdings Ltd Technology	Added	4,597,246	+812,398	$185,223,041	+40.2%	0.57%
ABNB	Airbnb, Inc. Consumer Cyclical	Added	1,441,221	+561,145	$181,997,387	+52.4%	0.56%
PWR	Quanta Services, Inc. Industrials	Reduced	325,840	-2,170	$178,892,676	+29.2%	0.55%
WYNN	Wynn Resorts Ltd Consumer Cyclical	Added	1,736,856	+517,266	$176,377,726	+20.2%	0.54%
MTD	Mettler Toledo International Inc/ Healthcare	Reduced	133,639	-12,695	$168,545,506	−17.4%	0.51%
IOT	Samsara Inc. Technology	Added	5,119,835	+999,804	$162,247,571	+11.1%	0.50%
AVGO	Broadcom Inc. Technology	Reduced	523,219	-14,621	$161,941,512	−13.0%	0.49%
HLI	Houlihan Lokey, Inc. Financial Services	Reduced	1,061,403	-62,548	$152,438,698	−22.1%	0.47%
META	Meta Platforms, Inc. Communication Services	Reduced	256,700	-13,426	$146,865,771	−17.6%	0.45%
CBRE	Cbre Group, Inc. Real Estate	Reduced	1,074,451	-284,881	$145,545,132	−33.4%	0.44%
PLD	Prologis, Inc. Real Estate	Reduced	1,065,747	-43,380	$140,870,438	−0.5%	0.43%
FPS	Forgent Power Solutions, Inc. Industrials	NEW	4,674,583	NEW	$136,825,044	NEW	0.42%
LOAR	Loar Holdings Inc. Industrials	Added	2,366,299	+246,794	$135,565,269	−5.9%	0.41%
MORN	Morningstar, Inc. Financial Services	Reduced	759,515	-482,279	$128,396,010	−52.4%	0.39%
TOL	Toll Brothers, Inc. Consumer Cyclical	Reduced	932,031	-234,239	$127,194,270	−19.3%	0.39%
BN	BROOKFIELD Corp /ON/ Financial Services	Reduced	2,905,510	-730,407	$117,585,989	−29.5%	0.36%
GOOGL	Alphabet Inc. Communication Services	Added	382,577	+225,079	$110,013,842	+123.2%	0.34%
NOVT	Novanta Inc Technology	Reduced	915,083	-21,879	$108,080,453	−3.1%	0.33%
KRMN	Karman Holdings Inc. Industrials	Reduced	1,279,093	-635,128	$102,391,394	−26.9%	0.31%
ARGX	Argenx SE Healthcare	Reduced	138,648	-15,071	$101,247,702	−21.7%	0.31%