13F Pro13F Pro

BAMCO INC /NY/

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1017918
Institutional-grade research for retail investors

Sector Allocation

  • Technology53.8%$35.9B
  • Consumer Discretionary18.8%$12.5B
  • Financials11.3%$7.5B
  • Healthcare4.3%$2.8B
  • Industrials4.1%$2.7B
  • Communication Services3.9%$2.6B
  • Real Estate2.5%$1.7B
  • Materials0.8%$547.7M
  • Utilities0.2%$147.9M
  • Consumer Staples0.1%$96.5M

AUM History

13fpro.ai/research/fund/bamco-inc-ny-1017918

Conviction and streaks

Concentrating · top 10 = 60.9%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

Largest positions — Q2 2026

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/bamco-inc-ny-1017918

BAMCO INC /NY/ 13F holdings — Q2 2026

$66.6B portfolio (+101.2% QoQ) · 345 holdings · Q2 2026 13F · top 10 are 61% of the stock portfolio

All holdings — BAMCO INC /NY/ (Q2 2026)

345 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

Company
IDXX$IDXXIDEXX LABORATORIES INC /DE$1.0B+21%
CHH$CHHCHOICE HOTELS INTERNATIONAL INC /DE$1.0B+21%
IT$ITGARTNER INC$985.2M+28%
FDS$FDSFACTSET RESEARCH SYSTEMS INC$966.5M+12%
MTN$MTNVAIL RESORTS INC$890.0M+30%
KNSL$KNSLKinsale Capital Group, Inc.$878.6M+31%
VRSK$VRSKVerisk Analytics, Inc.$844.3M+87%
BIRK$BIRKBirkenstock Holding plc$634.2M+57%
FIGS$FIGSFIGS, Inc.$613.4M—
CSGP$CSGPCOSTAR GROUP, INC.$612.5M+33%
ONON$ONONOn Holding AG$599.7M+74%
NVDA$NVDANVIDIA CORP$593.3M+2%
MORN$MORNMorningstar, Inc.$545.9M+361%
AMZN$AMZNAMAZON COM INC$466.3M+51%
IBKR$IBKRInteractive Brokers Group, Inc.$418.4M+19%

What changed in Q2 2026

Against the previous quarter's 13F: 53 new, 117 added to, 155 trimmed, 34 sold out. Share-count changes; largest moves by dollar size first.

New positions (53)

  • SPCX$SPCXSPACE EXPLORATION TECHNOLOGIES CORP$24.9B

    first bought this quarter

  • BXDC$BXDCBlackstone Digital Infrastructure Trust Inc.$164.8M

    first bought this quarter

  • MRNA$MRNAModerna, Inc.$139.3M

    first bought this quarter

  • MTH$MTHMeritage Homes CORP$112.5M

    first bought this quarter

  • CBRS$CBRSCerebras Systems Inc.$65.2M

    first bought this quarter

  • FBIN$FBINFortune Brands Innovations, Inc.$63.6M

    first bought this quarter

+47 more in the Excel export

Added to (117)

  • SHOP$SHOPSHOPIFY INC.+136%

    now $1.3B · held 10+ qtrs, 2 adds in a row

  • SPOT$SPOTSpotify Technology S.A.+84%

    now $1.1B · held 10+ qtrs, 2 adds in a row

  • MORN$MORNMorningstar, Inc.+361%

    now $545.9M · held 10+ qtrs

  • VRSK$VRSKVerisk Analytics, Inc.+87%

    now $844.3M · held 10+ qtrs, 3 adds in a row

  • SCHW$SCHWSCHWAB CHARLES CORP+56%

    now $1.1B · held 10+ qtrs, 2 adds in a row

  • GWRE$GWREGuidewire Software, Inc.+36%

    now $1.1B · held 10+ qtrs, 2 adds in a row

+111 more in the Excel export

Trimmed (155)

  • WYNN$WYNNWYNN RESORTS LTD-60%

    now $67.2M · held 10+ qtrs

  • ACGL$ACGLARCH CAPITAL GROUP LTD.-5%

    now $1.5B · held 10+ qtrs, 7 trims in a row

  • FND$FNDFloor & Decor Holdings, Inc.-100%

    now $44K

  • VRT$VRTVertiv Holdings Co-17%

    now $328.1M · held 10+ qtrs, 5 trims in a row

  • PRI$PRIPrimerica, Inc.-22%

    now $190.8M · held 10+ qtrs, 4 trims in a row

  • EQIX$EQIXEQUINIX INC-20%

    now $203.9M · held 10+ qtrs

+149 more in the Excel export

Sold out (34)

  • BMI$BMIBADGER METER INCwas $47.6M

    held 3 qtrs

  • ALKT$ALKTALKAMI TECHNOLOGY, INC.was $36.2M

    held 9+ qtrs

  • SKY$SKYChampion Homes, Inc.was $34.9M

    held 2 qtrs

  • TMHC$TMHCTaylor Morrison Home Corpwas $32.3M

    held 5 qtrs

  • VRNS$VRNSVARONIS SYSTEMS INCwas $26.6M

    held 9+ qtrs

  • GCI LIBERTY INCwas $25.6M

+28 more in the Excel export

Firm AUM (Form ADV): $39.5B as of 2026-02-28 · SEC IAPD

Holdings by quarter

Every 13F BAMCO INC /NY/ has filed, 40 earlier quarters. Pick one to see what it held then.

Email me the moment this fund files its next 13FPro

Is it too late to follow BAMCO?

Q2 2026 13F filed with the SEC on Aug 14, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of BAMCO's top 20 holdings: 61/100 (our AI quality score, weighted by position size; 16 of the 20 are scored)

Top 10 since filing

+4.9%

Value-weighted move of the 10 largest stock positions

Turnover

5%

Last quarter; 24% over the last 4

Top 10 weight

61%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

59%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

BAMCO INC /NY/ disclosed 345 positions worth $66.6B in its Form 13F-HR for Q2 2026, led by $SPCX (SPACE EXPLORATION TECHNOLOGIES CORP) at 37.4% of the equity portfolio, followed by $TSLA and $MSCI. During the quarter the fund opened 53 new positions and exited 34 — including a new stake in $SPCX and a full exit from $BMI. The portfolio is most concentrated in Technology (53.8% of disclosed assets). All figures are sourced directly from BAMCO INC /NY/’s Form 13F-HR filing with the SEC under CIK 1017918.

Browse Top Institutional Investors

13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.

to search all 8,700+ institutional filers.

AI-Powered Hedge Fund Analysis: BAMCO INC /NY/

13F Pro is an AI hedge fund tracker and stock research platform. For BAMCO INC /NY/ (SEC CIK: 1017918), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in BAMCO INC /NY/'s portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.