GAMCO Investors
Mario Gabelli
Period
Q1 2026
Portfolio Date
Mar 31, 2026
Stocks Held
924
Market Value
$9.7B
Portfolio Analysis
AIPreviewI. Institutional Overview
Mario Gabelli, the founder and driving force behind GAMCO Investors, stands as one of the most enduring figures in the world of value investing. As of the first quarter of 2026, the institutional holdings report reveals a portfolio with a total market value of approximately $9.71 billion. This figure represents a sophisticated tapestry of investments that...
The portfolio snapshot as of March 31, 2026, showcases an extraordinary level of diversification, with the institution holding positions in 924 different stocks. This high number of holdings is a defining characteristic of the GAMCO investment style. While many institutional investors prefer concentrated bets of 30 to 50 stocks to drive alpha, Gabelli’s...
The current scale of the portfolio, nearing the $10 billion mark, suggests a stable and mature institutional environment. There is no evidence of a frantic expansion or a forced contraction; instead, the data points to a disciplined management of capital. The institutional portrait that emerges is one of a "Value Guardian." GAMCO is not merely looking for...
Based on the latest available 13F filing.
Open full report in appHoldings Value Trend
Q2 2024
Q3 2024
Q4 2024
Q1 2025
Q2 2025
Q3 2025
Q4 2025
Q1 2026
Top 5 Holdings
$MSGS
Madison Square Garden Sports Corp.
1.9%
% of Portfolio
$GATX
GATX Corporation
1.9%
% of Portfolio
$MLI
Mueller Industries, Inc.
1.8%
% of Portfolio
$CR
Crane Company
1.7%
% of Portfolio
$NFG
National Fuel Gas Company
1.3%
% of Portfolio
Historical Positions
| Symbol | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 |
|---|---|---|---|---|
| MSGS | 1.9% | 1.5% | 1.3% | 1.3% |
| GATX | 1.9% | 1.9% | 2.1% | 1.9% |
| MLI | 1.8% | 2.1% | 2.1% | 2.0% |
| CR | 1.7% | 1.9% | 2.0% | 2.1% |
| NFG | 1.3% | - | 1.3% | 1.3% |
| BK | 1.2% | 1.4% | 1.4% | 1.3% |
| MOD | 1.2% | - | 1.4% | - |
| AXP | 1.2% | 1.5% | 1.4% | 1.5% |
| AME | 1.2% | 1.2% | - | - |
| WTS | 1.2% | - | - | - |
Post-Filing Contributors
Price change since reported price, ranked by portfolio contribution
Post-Filing Detractors
Price change since reported price, ranked by portfolio contribution
Sector Analysis
Trading Summary
All Holdings
$MSGS
1.9%
$GATX
1.9%
$MLI
1.8%
$CR
1.7%
$NFG
1.3%
$BK
1.2%
$MOD
1.2%
$AXP
1.2%
$AME
1.2%
$WTS
1.2%
$TXT
1.1%
$RSG
1.0%
$HRI
0.9%
$SONY
0.9%
$SPHR
0.9%
$CW
0.8%
$RHP
0.8%
$CNH
0.8%
$FLS
0.8%
$NPO
0.8%
$MYE
0.7%
$ROL
0.7%
$MWA
0.7%
$RUSHB
0.7%
$SWX
0.7%
$TSAT
0.6%
$TDS
0.6%
$AN
0.6%
$TV
0.6%
$ASTE
0.6%
$PAG
0.6%
$STT
0.6%
$GGG
0.6%
$NVDA
0.6%
$CTS
0.6%
$GTLS
0.6%
$WBD
0.5%
$DCO
0.5%
$GOOG
0.5%
$NEM
0.5%
$DE
0.5%
$ATI
0.5%
$ORLY
0.5%
$IMKTA
0.5%
$ODC
0.5%
$TG
0.5%
$JPM
0.5%
$MSFT
0.5%
$TNC
0.5%
$AZZ
0.5%