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Thomas J. Herzfeld Advisors, Inc. — 13F Holdings & Portfolio

CIK 1509510 · latest 13F-HR filed 2026-08-10

Backtest portfolio

Thomas J. Herzfeld Advisors, Inc. manages $325.8M in 13F-reported U.S. long-equity assets across 129 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are FSSL (9.93%), PDX (7.00%), FSCO (6.01%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 33 new positions and exited 19; 63 existing positions rose in reported value and 21 fell.

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.

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AUM
$325.8M

Long-equity book

Holdings
129

Distinct positions

Period
2026-06-30

Filed 2026-08-10

Q/Q Activity
+33 / −19 / ↑63 / ↓21

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
FSSL9.9% · +3%PDX7.0% · -13%FSCO6.0% · +7%HFRO5.9% · -1%GOF4.5% · +32%HERZ4.3% · +1%PSUS3.3% · newBRW3.1% · +9%NSLR3.0% · newEIC2.8% · +128%JFR2.6% · +56%SABA2.3% · +15%STK2.1% · +95%PDI2.0% · +151%DPG1.6% · -8%BSTZ1.5% · +101%RA1.5% · +8%BTX1.4% · +84%TWN1.4% · +14%PAXS1.4% · -29%TYG1.3% · newBPRE1.2% · -16%KYN1.2% · +18%KF1.2% · +13014%EMO1.1% · +24%NML1.1% · +9%BGR1.1% · +31%XFLT1.1% · +234%ASA1.1% · -47%NXG1.1% · newCHY1.0% · newRFMZ1.0% · +6%NCZ1.0% · newNCV1.0% · newPTY0.9% · +1%LDP0.9% · +33%FINS0.9% · +15%BCX0.8% · +10%GHY0.8% · newBTZ0.8% · newSDHY0.7% · +22%GAM0.6% · -2%MEGI0.6% · -1%MFM0.6% · +459%BGX0.6% · +50%ARDC0.6% · newTBLD0.5% · +16%PCQ0.5% · +134%PNI0.5% · +208%CEFS0.5% · -4%BTT0.4% · +15%BGB0.4% · newDSM0.4% · +19%RFM0.4% · newMHD0.3% · newMMD0.3% · +37%PDO0.3% · 0%JLS0.2% · -38%FMN0.2% · newNBH0.2% · new

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

6 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 49.8%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Oct 27, 2026.

Assets Under Management
$1.34B
Discretionary
$1.32B
Employees
15
Accounts
336
Address
119 WASHINGTON AVENUE
SUITE 405
MIAMI BEACH, FL 33139
Phone
(305) 777-1660
Website
Name Title / Status Ownership Type
HERZFELD, ERIK, MERVIN ControlPRESIDENT, SECRETARY, TREASURER
since Oct 2008
Less than 5%Individual
HERZFELD, THOMAS, JAY ControlCHAIRMAN AND SOLE DIRECTOR
since Feb 1984
75% or moreIndividual
MORGAN, THOMAS, KENNETH ControlCHIEF COMPLIANCE OFFICER AND CHIEF OPERATING OFFICER
since Sep 2018
Less than 5%Individual
Ownership & leadership changes · 5 filings with changes since Mar 12, 2012

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Mar 24, 2022 filing
  • ChangedMORGAN, THOMAS, KENNETH · title CHIEF COMPLIANCE OFFICER → CHIEF COMPLIANCE OFFICER AND CHIEF OPERATING OFFICER
Sep 14, 2018 filing
  • No longer listedLEE, REANNA, JANE MORAN · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Dec 2012
  • AddedMORGAN, THOMAS, KENNETH · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Mar 30, 2016 filing
  • ChangedHERZFELD, ERIK, MERVIN · title MANAGING DIRECTOR → PRESIDENT, SECRETARY, TREASURER
  • ChangedHERZFELD, THOMAS, JAY · title PRESIDENT/SECRETARY/TREASURER/SOLE DIRECTOR → CHAIRMAN AND SOLE DIRECTOR
Mar 31, 2015 filing
  • No longer listedGONDOR, CECILIA, LAURA · EXECUTIVE VICE PRESIDENT · Less than 5% · control person · listed since Apr 1984
  • ChangedHERZFELD, ERIK, MERVIN · title HEAD OF ALTERNATIVE STRATEGIES → MANAGING DIRECTOR
Mar 28, 2013 filing
  • AddedLEE, REANNA, JANE MORAN · CHIEF COMPLIANCE OFFICER · Less than 5%
  • ChangedHERZFELD, THOMAS, JAY · title PRESIDENT/SECRETARY/TREASURER/SOLE DIRECTOR/CHIEF COMPLIANCE OFFICER → PRESIDENT/SECRETARY/TREASURER/SOLE DIRECTOR
Mar 12, 2012 filing (earliest on record)
  • ListedGONDOR, CECILIA, LAURA · EXECUTIVE VICE PRESIDENT · Less than 5% · control person
  • ListedHERZFELD, ERIK, MERVIN · HEAD OF ALTERNATIVE STRATEGIES · Less than 5% · control person
  • ListedHERZFELD, THOMAS, JAY · PRESIDENT/SECRETARY/TREASURER/SOLE DIRECTOR/CHIEF COMPLIANCE OFFICER · 75% or more · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Thomas J. Herzfeld Advisors, Inc. Holdings (2026-06-30)

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 FS Specialty Lending Fund FSSL 644323107 $32.3M 9.93% 2,900,663 SH
2 PIMCO Dynamic Income Strategy Fund PDX 69346N107 $22.8M 7.00% 1,095,075 SH
3 FS Credit Opportunities Corp FSCO 30290Y101 $19.6M 6.01% 3,921,573 SH
4 Highland Floating Rate Opportunities Fund HFRO 43010E404 $19.1M 5.86% 2,676,474 SH
5 Guggenheim Strategic Opp Fund GOF 40167F101 $14.6M 4.48% 1,336,680 SH
6 Herzfeld Credit Income Fund, Inc. HERZ 42804T205 $14.1M 4.32% 817,534 SH
7 Pershing Square USA Ltd PSUS 71531T105 $10.7M 3.28% 285,421 SH
8 Saba Capital Income & Opport BRW 78518H202 $10.1M 3.12% 1,544,694 SH
9 Suro Capital Corp NSLR 86887Q109 $9.9M 3.03% 788,403 SH
10 Eagle Pointe Income Company EIC 269817102 $9.0M 2.77% 897,140 SH
11 Nuveen Floating Rate Income JFR 67072T108 $8.5M 2.62% 1,111,921 SH
12 Saba Capital Income & Opport II SABA 880198205 $7.4M 2.29% 891,603 SH
13 Columbia Seligman Premium Technology Growth Fund STK 19842X109 $7.0M 2.14% 129,150 SH
14 PIMCO Dynamic Income Fd PDI 72201Y101 $6.5M 1.99% 388,727 SH
15 Duff & Phelps Utility and Infrastructure Fund Inc. DPG 26433C105 $5.4M 1.64% 360,644 SH
16 BlackRock Science and Technology Trust II BSTZ 09260K101 $5.0M 1.53% 166,033 SH
17 Brookfield Real Assets Incom RA 112830104 $4.8M 1.46% 369,085 SH
18 BlackRock Tech and Private Eq BTX 09260Q108 $4.7M 1.43% 515,402 SH
19 The Taiwan Fund Inc TWN 874036106 $4.6M 1.40% 47,520 SH
20 PIMCO Access Income Fund PAXS 72203T100 $4.5M 1.39% 311,965 SH
21 Tortoise Energy Infra Corp TYG 89147L886 $4.3M 1.32% 100,275 SH
22 Bluerock Private Real Estate Fund BPRE 09631P102 $3.9M 1.21% 303,336 SH
23 Kayne Anderson Energy Infrst KYN 486606106 $3.8M 1.17% 276,097 SH
24 The Korea Fund Inc KF 500634209 $3.7M 1.15% 49,834 SH
25 Clearbridge Energy Midstrm O EMO 18469P209 $3.7M 1.12% 73,130 SH
26 Neuberger Berman MLP Income Fund Inc NML 64129H104 $3.6M 1.10% 352,764 SH
27 BlackRock Energy and Resources Trust BGR 09250U101 $3.5M 1.08% 238,075 SH
28 XAI Octagn Flt Rat & Alt Inm XFLT 98400T304 $3.5M 1.07% 198,688 SH
29 ASA Gold and Precious Metals Ltd ASA G3156P103 $3.5M 1.07% 66,761 SH
30 NXG NextGen Intrastruacture Inc Fund NXG 231647207 $3.4M 1.06% 53,297 SH
31 Calamos Conv & High Income Fund CHY 12811P108 $3.3M 1.03% 245,638 SH
32 Rivernorth Flexible Mun Income Fund II, Inc. RFMZ 76883Y107 $3.3M 1.02% 243,641 SH
33 Virtus Convertible & Income Fund II NCZ 92838U801 $3.3M 1.00% 205,874 SH
34 Virtus Convertible & Income Fund NCV 92838X805 $3.3M 1.00% 185,909 SH
35 PIMCO Corporate & Income Opp Fund PTY 72201B101 $3.0M 0.93% 252,532 SH
36 Cohen & Steers Limited Duration Preferred and Income Fund, Inc. LDP 19248C105 $2.9M 0.89% 137,739 SH
37 Angel Oak Final Strategies Incm Trm Trst FINS 03464A100 $2.8M 0.87% 222,390 SH
38 BlackRock Res & Commodities Strat Trust BCX 09257A108 $2.7M 0.83% 238,622 SH
39 PGIM Global Short Duration High Yield Fund, Inc. GHY 69346J106 $2.6M 0.80% 215,331 SH
40 BlackRock Credit Allocation Income Trust BTZ 092508100 $2.5M 0.77% 245,318 SH
41 PGIM Short Dur Hig yld Opp F SDHY 69355J104 $2.3M 0.70% 138,168 SH
42 General American Investors Co Inc GAM 368802104 $2.0M 0.62% 31,935 SH
43 NYLI CBRE Gbl Infr Megtrnds MEGI 56064Q107 $2.0M 0.60% 129,641 SH
44 MFS Municipal Income Trust MFM 552738106 $1.9M 0.60% 345,429 SH
45 Blackstone / GSO Long-Short Credit Income Fund BGX 09257D102 $1.9M 0.59% 177,105 SH
46 Ares Dynamic Cr Allocation Fund ARDC 04014F102 $1.9M 0.58% 150,623 SH
47 Thornburg Incm Builder Opp Tr TBLD 885213108 $1.8M 0.55% 80,479 SH
48 PIMCO Calif Mun Income Fund PCQ 72200N106 $1.7M 0.51% 185,469 SH
49 Pimco New York Municipal Income Fund II PNI 72200Y102 $1.6M 0.50% 231,370 SH
50 Exchange Listed FDS Tr CEFS 30151E806 $1.6M 0.49% 62,053 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-10 $325.8M 129 0001398344-26-013942
2026-03-31 2026-05-12 $294.0M 115 0001398344-26-008954
2025-12-31 2026-02-13 $295.6M 107 0001398344-26-003154
2025-09-30 2025-11-12 $291.7M 104 0001398344-25-020702
2024-09-30 2024-11-12 $300.3M 155 0001398344-24-020507
2024-06-30 2024-08-13 $285.1M 238 0001398344-24-014510
Filer Information
Address
119 WASHINGTON AVENUE, SUITE 405
MIAMI BEACH, FL 33139
Phone
(305) 271-1900
Filing Manager
Thomas J. Herzfeld Advisors, Inc.
MIAMI BEACH, FL
Signatory
Erik M. Herzfeld
President