Closed-End Funds

CEF

Nuveen Build America Bond Fund (NYSE: NBB)

Asset Allocation (As a percentage of Managed Assets)

As of 04/30/2013

Total may not add up to 100% due to rounding.

‡ Includes the Fund's investments in municipal-related instruments, such as inverse floaters.

Fund Characteristics

As of 4/30/2013 
# of Holdings 98
% AMT * (As of 3/29/2013)0.00%
Avg. Coupon *8.35%
Avg. Maturity (years) *27.56
Modified Duration *9.86
Effective Duration *10.85
Leverage-Adjusted Effective Duration *12.43
Effective Maturity *27.54
Avg. Bond Price *$134.18

Call Exposure

As of 04/30/2013

Total may not add up to 100% due to rounding.

Credit Quality

As of 04/30/2013

Total may not add up to 100% due to rounding.

Ratings shown are the highest rating given by one of the following national rating agencies: Standard & Poor’s Group, Moody’s Investor Services, Inc. or Fitch, Inc. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Bonds backed by U.S. Government or agency securities are given an implied rating equal to the rating of such securities. Holdings designated N/R are not rated by these national rating agencies.

Maturity Breakdown

As of 04/30/2013

Total may not add up to 100% due to rounding.

Top 10 Issuers

As of 04/30/2013
Issuer% Portfolio
Chicago
6.1%
Texas State
6.1%
Los Angeles County
4.4%
California State
4.2%
Municipal Electric
4.0%
Los Angeles Communi
4.0%
South Carolina Publ
3.8%
New Jersey State
3.3%
American Municipal
3.2%
Illinois State
3.2%

Top 5 Industries

As of 04/30/2013
Industry% Portfolio
Municipal
98.1%
Tobacco
0.5%

Holdings may vary and are subject to change without notice.

Fund shares are not guaranteed or endorsed by any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation. Shares of closed-end funds are subject to investment risks, including the possible loss of principal invested. Past performance is no guarantee of future results.

Holdings of inverse floating rate securities show the amount of the residual inverse floater, and not the amount of the underlying bond and an associated liability to the holder of the associated floating rate security, and therefore may not be fully consistent with generally accepted accounting principals.

An investment in this fund presents a number of risks and is not suitable for all investors. Investors should carefully review and consider potential risks before investing. For more detailed information on the specific risks associated with this fund, please view the Overview tab.

NOTES

* For the percentage of the portfolio invested in debt securities.

Fund data is updated daily, monthly, and quarterly, depending on the specific data point. Click HERE for the update schedule.

Frequency Data included
Daily all funds: Market price, NAV, premium/discount, annualized distribution rates on market price and NAV
Monthly all funds: Assets, leverage, expenses, total return performance, distribution amounts, earnings & UNII
Monthly certain funds: Municipal bond fund holdings and portfolio information
Monthly certain funds, with 1-month lag: Taxable fund holdings and portfolio information except JCE, NSL, JFR and JRO; and % AMT for municipal bond funds
Quarterly certain funds: JCE, NSL, JFR, and JRO holdings and portfolio information, tax characteristic estimates for distributions from funds paying quarterly distributions
Quarterly all funds: SEC filings (annual shareholder report, semi-annual shareholder report, or 10-Q filing)