Frequently Asked Questions About BBN

What are the top holdings of BBN?

BlackRock Taxable Municipal Bond Trust holds 211 securities in total. The largest positions and their portfolio weights are listed on the Holdings tab.

How many holdings does BBN have?

BBN holds 211 positions as reported by the fund's most recent disclosure.

What sectors does BBN invest in?

BlackRock Taxable Municipal Bond Trust (BBN) allocates across the sectors shown above. The largest exposure tops the list; the rest follow in descending weight order.

What sector is BBN most exposed to?

BBN's full sector breakdown is on the Sectors tab. The largest sector weight is shown there along with the rest of the allocation.

Is BBN a US-only fund?

The country allocation card on this page shows BBN's geographic exposure. Funds with > 95% US weight are effectively US-only; international or global funds will show meaningful weights across multiple countries.

What does BBN invest in?

The BlackRock Taxable Municipal Bond Trust is a closed-ended investment fund sponsored by BlackRock, Inc., and expertly managed by BlackRock Advisors, LLC. This trust primarily allocates its capital within the United States' fixed income markets. Its core holdings are taxable municipal securities, notably including Build America Bonds. Beyond this, the fund diversifies its portfolio with investments in tax-exempt securities, U.S. Treasury obligations, debt from U.S. government agencies and instrumentalities, and corporate debt instruments. Previously, it operated under the name BlackRock Build America Bond Trust. Established on August 27, 2010, the trust is domiciled within the United States.

BBN

BlackRock Taxable Municipal Bond Trust

NYSE·Asset Management, Bonds · Financial Services

$14.75$0.06+0.41%

After hours·$14.75+0.00%

Market closed·Oct 27 4:00 PM EDT

Portfolio as of June 30, 2026, from the fund's SEC Form N-PORT filing. Funds disclose holdings quarterly, with a ~60-day publication delay. Weights are percent of the fund's net assets, and BBN uses leverage, so its long positions add up to more than 100%. Sector breakdowns aren't part of this filing, so none is shown.

Top Holdings

278

holdings

167727SW7
City of Chicago IL Wastewater Transmission Revenue
3.73%
592125AA6
Metropolitan Government of Nashville & Davidson County Convention Center Auth
3.71%
646139X83
New Jersey Turnpike Authority
3.69%
452152GS4
State of Illinois
2.60%
626207YF5
Municipal Electric Authority of Georgia
2.51%
59259NZH9
Metropolitan Transportation Authority Dedicated Tax Fund
2.38%
70869PFT9
Pennsylvania Economic Development Financing Authority
2.36%
02765UEJ9
American Municipal Power Inc
2.33%
79575DE63
Salt River Project Agricultural Improvement & Power District
2.25%
59259YDC0
Metropolitan Transportation Authority
2.05%
Other
208 more holdings
124.34%

Top 10 holdings

11.30%

Top 25 holdings

25.96%

Concentration index

0.0086

Effective holdings

116

Chart tools

Open Top Holdings in Chart Builder to fine-tune colors, labels, and timeframe, then download a high-res PNG.

All Holdings (278)

#	TickerHolding	Name	Weight	Shares	Market Value
1	167727SW7167727SW7City of Chicago IL Wastewater Transmission Revenue	City of Chicago IL Wastewater Transmission Revenue	3.73%	36.00M	$39.19M
2	592125AA6592125AA6Metropolitan Government of Nashville & Davidson County Convention Center Auth	Metropolitan Government of Nashville & Davidson County Convention Center Auth	3.71%	35.11M	$39.03M
3	646139X83646139X83New Jersey Turnpike Authority	New Jersey Turnpike Authority	3.69%	34.00M	$38.80M
4	R0001493683-3R0001493683-3TD SECURITIES USA LLC	TD SECURITIES USA LLC	−3.64%	−38.31M	−$38.31M
5	R0001493683-4R0001493683-4RBC CAPITAL MARKETS LLC	RBC CAPITAL MARKETS LLC	−3.63%	−38.16M	−$38.16M
6	452152GS4452152GS4State of Illinois	State of Illinois	2.60%	25.61M	$27.37M
7	626207YF5626207YF5Municipal Electric Authority of Georgia	Municipal Electric Authority of Georgia	2.51%	24.72M	$26.39M
8	R0001493683-7R0001493683-7BARCLAYS BANK PLC	BARCLAYS BANK PLC	−2.42%	−25.43M	−$25.43M
9	59259NZH959259NZH9Metropolitan Transportation Authority Dedicated Tax Fund	Metropolitan Transportation Authority Dedicated Tax Fund	2.38%	21.62M	$24.99M
10	70869PFT970869PFT9Pennsylvania Economic Development Financing Authority	Pennsylvania Economic Development Financing Authority	2.36%	23.05M	$24.85M
11	02765UEJ902765UEJ9American Municipal Power Inc	American Municipal Power Inc	2.33%	20.76M	$24.52M
12	79575DE6379575DE63Salt River Project Agricultural Improvement & Power District	Salt River Project Agricultural Improvement & Power District	2.25%	24.55M	$23.62M
13	59259YDC059259YDC0Metropolitan Transportation Authority	Metropolitan Transportation Authority	2.05%	19.71M	$21.57M
14	626207YM0626207YM0Municipal Electric Authority of Georgia	Municipal Electric Authority of Georgia	2.04%	19.97M	$21.44M
15	88880NAT688880NAT6Tobacco Settlement Financing Corp/VA	Tobacco Settlement Financing Corp/VA	2.01%	28.43M	$21.11M
16	38122ND5838122ND58Golden State Tobacco Securitization Corp	Golden State Tobacco Securitization Corp	1.93%	26.28M	$20.31M
17	882667AZ1882667AZ1Texas Private Activity Bond Surface Transportation Corp	Texas Private Activity Bond Surface Transportation Corp	1.90%	25.00M	$19.94M
18	130685WB2130685WB2California State Public Works Board	California State Public Works Board	1.89%	17.05M	$19.82M
19	341271AH7341271AH7State Board of Administration Finance Corp	State Board of Administration Finance Corp	1.81%	18.30M	$19.03M
20	R0001493683-19R0001493683-19TD SECURITIES USA LLC	TD SECURITIES USA LLC	−1.81%	−19.01M	−$19.01M

Showing 20 of 278

Sectors

The fund issuer's factsheet may carry this breakdown directly.

Countries

Domicile

United States · 97.11%

Asset Classes

Primary asset class

Fixed income

Strategy

Actively Managed

Income strategy

Bond yield

Issuer-reported asset class: Fixed Income

Frequently Asked Questions About BBN

What are the top holdings of BBN?: BlackRock Taxable Municipal Bond Trust holds 211 securities in total. The largest positions and their portfolio weights are listed on the Holdings tab.
How many holdings does BBN have?: BBN holds 211 positions as reported by the fund's most recent disclosure.
What sectors does BBN invest in?: BlackRock Taxable Municipal Bond Trust (BBN) allocates across the sectors shown above. The largest exposure tops the list; the rest follow in descending weight order.
What sector is BBN most exposed to?: BBN's full sector breakdown is on the Sectors tab. The largest sector weight is shown there along with the rest of the allocation.
Is BBN a US-only fund?: The country allocation card on this page shows BBN's geographic exposure. Funds with > 95% US weight are effectively US-only; international or global funds will show meaningful weights across multiple countries.
What does BBN invest in?: The BlackRock Taxable Municipal Bond Trust is a closed-ended investment fund sponsored by BlackRock, Inc., and expertly managed by BlackRock Advisors, LLC. This trust primarily allocates its capital within the United States' fixed income markets. Its core holdings are taxable municipal securities, notably including Build America Bonds. Beyond this, the fund diversifies its portfolio with investments in tax-exempt securities, U.S. Treasury obligations, debt from U.S. government agencies and instrumentalities, and corporate debt instruments. Previously, it operated under the name BlackRock Build America Bond Trust. Established on August 27, 2010, the trust is domiciled within the United States.

TickerHolding

Name

Weight

Market Value

167727SW7167727SW7City of Chicago IL Wastewater Transmission Revenue

City of Chicago IL Wastewater Transmission Revenue

3.73%

36.00M

$39.19M

592125AA6592125AA6Metropolitan Government of Nashville & Davidson County Convention Center Auth

Metropolitan Government of Nashville & Davidson County Convention Center Auth

3.71%

35.11M

$39.03M

646139X83646139X83New Jersey Turnpike Authority

New Jersey Turnpike Authority

3.69%

34.00M

$38.80M

R0001493683-3R0001493683-3TD SECURITIES USA LLC

TD SECURITIES USA LLC

−3.64%

−38.31M

−$38.31M

R0001493683-4R0001493683-4RBC CAPITAL MARKETS LLC

RBC CAPITAL MARKETS LLC

−3.63%

−38.16M

−$38.16M

452152GS4452152GS4State of Illinois

State of Illinois

2.60%

25.61M

$27.37M

626207YF5626207YF5Municipal Electric Authority of Georgia

Municipal Electric Authority of Georgia

2.51%

24.72M

$26.39M

R0001493683-7R0001493683-7BARCLAYS BANK PLC

BARCLAYS BANK PLC

−2.42%

−25.43M

−$25.43M

59259NZH959259NZH9Metropolitan Transportation Authority Dedicated Tax Fund

Metropolitan Transportation Authority Dedicated Tax Fund

2.38%

21.62M

$24.99M

70869PFT970869PFT9Pennsylvania Economic Development Financing Authority

Pennsylvania Economic Development Financing Authority

2.36%

23.05M

$24.85M

02765UEJ902765UEJ9American Municipal Power Inc

American Municipal Power Inc

2.33%

20.76M

$24.52M

79575DE6379575DE63Salt River Project Agricultural Improvement & Power District

Salt River Project Agricultural Improvement & Power District

2.25%

24.55M

$23.62M

59259YDC059259YDC0Metropolitan Transportation Authority

Metropolitan Transportation Authority

2.05%

19.71M

$21.57M

626207YM0626207YM0Municipal Electric Authority of Georgia

Municipal Electric Authority of Georgia

2.04%

19.97M

$21.44M

88880NAT688880NAT6Tobacco Settlement Financing Corp/VA

Tobacco Settlement Financing Corp/VA

2.01%

28.43M

$21.11M

38122ND5838122ND58Golden State Tobacco Securitization Corp

Golden State Tobacco Securitization Corp

1.93%

26.28M

$20.31M

882667AZ1882667AZ1Texas Private Activity Bond Surface Transportation Corp

Texas Private Activity Bond Surface Transportation Corp

1.90%

25.00M

$19.94M

130685WB2130685WB2California State Public Works Board

California State Public Works Board

1.89%

17.05M

$19.82M

341271AH7341271AH7State Board of Administration Finance Corp

State Board of Administration Finance Corp

1.81%

18.30M

$19.03M

R0001493683-19R0001493683-19TD SECURITIES USA LLC

TD SECURITIES USA LLC

−1.81%

−19.01M

−$19.01M