PUTNAM MANAGED MUNICIPAL INCOME TRUST
N-30D, 1995-07-05
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Putnam 
Managed 
Municipal 
Income Trust 

SEMIANNUAL REPORT 
April 30, 1995 
                                [logo--scales] 
             B O S T O N (bullet) L O N D O N (bullet) T O K Y O 

                       
<PAGE> 
Performance highlights 

(triangle)"Over the long term, Putnam Managed Municipal Income Trust has one of 
the best records in its objective: Its five-year trailing return beats those 
of 97% of its peers', largely because of the fund's ability to fare well in 
both rising- and falling-rate environments." 
- -- Morningstar Mutual Funds, March 24, 1995* 


(triangle)Performance should always be considered in light of a fund's 
investment strategy. Putnam Managed Municipal Income Trust is designed for 
investors seeking high current income exempt from federal income tax through 
a diversified portfolio of tax-exempt municipal securities. 


SEMIANNUAL RESULTS AT A GLANCE 
Total return                      NAV                        Market price 
(change in value 
  during period plus 
  reinvested 
  distributions) 
6 months ended 4/30/95              7.52%                       15.37% 
Share value                          NAV                        Market price 

(common shares) 
10/31/94                        $   9.49                      $   9.25 
4/30/95                             9.80                         10.25 
Distributions             No.     Income   Capital gains((1))    Total 

Common shares               6   $  0.381        --            $  0.381 
Preferred shares 
Series A (550)                  $1997.70        --            $1997.70 
Series B (550)                   2045.85        --             2045.85 
Series C (650)                   2003.24        --             2003.24 
Current return                       NAV                        Market price 

End of period 
Current dividend 
  rate((2))                         7.78%                        7.43% 
Taxable 
  equivalent((3))                  12.88                         12.30 


Performance data represent past results. For performance over longer periods, 
see pages 8 and 9. 
((1))Capital gains, if any, are taxable for federal and, in most cases, state 
tax purposes. 
((2))Income portion of most recent distribution, annualized and divided by 
NAV or market price at end of period. 
((3))Assumes maximum 39.6% federal tax rate. Results for investors subject to 
lower tax rates would not be as advantageous. For some investors, investment 
income may also be subject to the federal alternative minimum tax. Investment 
income may be subject to state and local taxes. 


*Morningstar, Inc., an independent industry research organization, rates a 
fund in relation to other funds with similar investment objectives, based on 
the fund's 3- and 5-year average annual returns, adjusted for risk factors 
and sales charges. For the 3- and 5-year periods ended 4/30/95, there were 95 
and 44 funds, respectively, in the closed-end municipal category. The fund 
received an overall rating of three stars. Ratings are updated monthly. Past 
performance is not indicative of future results. 


                                       
<PAGE> 
From the Chairman 

[photo of George Putnam] 
(C)Karsh, Ottawa 

Dear Shareholder: 

Many of the gathering signs of hope that sustained municipal bond investors 
during the darkest days of the 1994 market decline began manifesting 
themselves in earnest over the early months of 1995. Although the market 
exhibited volatility toward the end of Putnam Managed Municipal Income 
Trust's semiannual period (the six months ended April 30, 1995), the mood was 
appreciably more upbeat than it had been when the fiscal year began. 

The economy continued to march at a brisk stride, though the pace since 
January has slowed considerably from calendar 1994 levels. Investors took 
this moderation as a sign that the economy was responding favorably to the 
Federal Reserve Board's strategy of raising short-term rates to rein in 
growth and thereby hold inflation in check. The consensus in the markets 
seems to be that the Fed's series of interest-rate increases may be near an 
end. 

The sharp decline in new issues that market watchers foresaw as a spur to 
higher prices added fuel to the recent rally. So did the attractiveness of 
tax-free yields relative to taxable Treasuries. In the following report, Fund 
Manager Howard Manning discusses the fund's performance so far in fiscal 1995 
and prospects for the second half. 

Respectfully yours, 

/s/George Putnam 
George Putnam 
Chairman of the Trustees 
June 21, 1995 

                                      
<PAGE> 
Report from the Fund Manager 
Howard Manning 

After weathering one of the most volatile bond markets in recent memory, 
municipal bond investors were finally rewarded with strong gains during the 
first four months of 1995. Although the six-month reporting period that ended 
April 30, 1995, began in turbulence, a turnaround began in January as the 
entire bond market staged a strong rally--with municipal bonds in the lead. 
Behind the market's rise were signs that economic growth was beginning to 
moderate, the Federal Reserve Board had taken a break from its anti-inflation 
policy of raising short-term interest rates, and inflation was expected to 
remain at a modest level. 

For the semiannual period, Putnam Managed Municipal Income Trust produced a 
total return of 7.52% at net asset value (NAV). With taxable-equivalent 
yields now in double digits, your fund's current dividend rate at NAV would 
translate into a yield of 12.88% for a taxable investment, assuming the 
maximum 39.6% federal tax rate. Most investors in lower brackets would also 
enjoy tax advantages, though not to the same extent. 

(triangle) CAREFUL POSITIONING ANTICIPATED RALLY 
Toward the end of calendar 1994, market sentiment was overwhelmingly 
negative. In fact, we felt it was too negative. Our fundamental research 
indicated that the market's pessimism had eroded prices to unprecedented 
levels, and it appeared to us that the market was due for a correction. We 
positioned the portfolio to take advantage of any eventual upturn in the 
market, but we were careful to do so in a conservative manner. 

Because we wanted the fund to generate as much income as possible while 
benefiting from potentially higher bond prices, we employed a barbelled 
formation in selecting bonds for the portfolio. About half of the portfolio 
was invested in higher-yielding bonds with shorter maturities, which are less 
sensitive to market movements. The higher income stream on these bonds 
represents the greatest portion of their return. 

We invested the other half of the portfolio in bonds that were likely to 
perform closely in line with market trends, expecting a 

                                       
<PAGE> 
certain amount of volatility but also substantial potential benefits. Our 
selection consisted mostly of discount bonds, which have relatively long 
maturities and lower coupons (yields). Prices on discount bonds tend to 
appreciate faster than other bonds as interest rates fall and decline faster 
when they rise. 

(triangle) CREDIT RESEARCH ESSENTIAL TO BOND SELECTION 

During the period, our stringent credit analysis led us to a number of bond 
issues we believed were undervalued--many in promising geographical and 
market sectors. These included selected New York agency issues. During the 
period, approximately 11% of the portfolio was held in New York state and New 
York City bonds. We favored New York debt because we believed it was 
undervalued in the marketplace and represented significant relative value. 

As of this writing, New York City is facing a projected $3.1 billion revenue 
shortfall in its fiscal 1996 budget. Mayor Giuliani has proposed about $500 
million in additional spending cuts from existing programs and services to 
help cover part of the shortfall. With the legislators in Albany struggling 
to balance the state budget, it remains unclear at this time if they will 
come through with additional funds--as requested by the mayor--to close the 
city's budget gap. 

This uncertainty has contributed to discussions of a modest downgrade of the 
city's general obligation debt. By most accounts, municipal bond investors 
have already factored in the likelihood of such an event. Additionally, the 
fund's well-diversified portfolio has and should continue to play a 
significant role in limiting price fluctuation. 

[bar chart] 
TOP FIVE INDUSTRY SECTORS* 

Hospitals/health care 22.2% 
Utilities             21.1% 
Transportation        12.0% 
Housing                5.0% 
Energy                 4.0% 

*Based on net assets as of 4/30/95. Sectors may vary over time. 

                                     
<PAGE> 

We also added to our position in the airline industry through industrial 
revenue bonds. These bonds are issued by municipalities which are secured by 
a lease agreement with a corporation. We have significant exposure to what we 
believe are the two strongest airlines, United Airlines and American 
Airlines. Both companies have undergone major restructuring programs over the 
past few years. They've streamlined their businesses, cut costs, and are 
competitive within their industry. In addition, demand for these bonds is 
strong and we believe this strength will enhance their value in the 
portfolio. 

(triangle) AIRPORT SECURITIES GAIN, HEALTH CARE IN THE DOLDRUMS 

Over this period, we took profits in several bonds whose prices had risen 
significantly. One example was Denver Airport bonds. Putnam Management's 
credit research suggested that the airport would open in February and that 
demand for these bonds would increase. These bonds had been solid performers, 
and when the airport opened on February 28, their prices rose significantly. 
To capture the capital appreciation, we reduced the fund's position in this 
security. 

Regarding the health care sector, after years of consolidation and cost 
cutting and with the immediate prospect of health care legislation no longer 
an issue, it seemed to us that the health care sector was poised for strong 
performance. Ironically, the opposite occurred over this period. Hospital 
bonds, in particular, were laggards. 

What happened in the hospital segment was not a selloff. It was more of a 
standoff. Investors were neither buying nor selling hospital bonds. As demand 
deteriorated, prices declined. When the health care issues in the portfolio 
experienced a modest rebound, we selectively reduced the fund's allocation in 
hospital bonds and invested the proceeds in bonds in other sectors that 
offered better relative value. We believe that the health care sector holds 
promise over the long term and we will monitor this sector closely for buying 
opportunities in the future. 



                                      
<PAGE> 

TOP 10 ISSUERS (4/30/95) 

 Metropolitan Water District, Southern California, 
 waterworks revenue bonds 
 
 Ohio State Air Quality Development Authority 
 pollution control revenue bonds 

 Washington State Public Power Supply System 
 revenue bonds 

 Chicago, O'Hare International Airport 
 special facility revenue bonds 

 North Carolina Eastern Municipal Power Agency 
 revenue bonds 

 Denver City and County Airport 
 revenue bonds 

 New York City 
 general obligation bonds 

 University of California 
 revenue bonds 

 Clark County, Nevada, 
 industrial development revenue bonds 

 New York State Dormitory Authority 
 revenue bonds 

These holdings represent 31% of the fund's net assets. Portfolio holdings 
will vary over time. 

(triangle) OUTLOOK: PROCEEDING WITH CAUTION 

We are cautiously optimistic about prospects for the municipal bond market 
over the near term. We are looking for clearer signs that the Fed's objective 
of controlled, sustained economic growth with moderate inflation has been 
achieved. Until we are confident that these events have occurred, we will 
continue to take a conservative approach in managing your fund; that is, we 
will maintain a balance between bonds that are more sensitive to interest 
rates and those that add stability to the portfolio. 

The views expressed here are exclusively those of Putnam Management. They are 
not meant as investment advice. Although the described holdings were viewed 
favorably as of April 30, 1995, there is no guarantee the fund will continue 
to hold these securities in the future. 



                                       
<PAGE> 
Performance summary 

This section provides, at a glance, information about your fund's 
performance. Total return shows how the value of the fund's shares changed 
over time, assuming you held the shares through the entire period and 
reinvested all distributions back into the fund. We show total return in two 
ways: on a cumulative long-term basis and on average how the fund might have 
grown each year over varying periods. For comparative purposes, we show how 
the fund performed relative to appropriate indexes and benchmarks. 

TOTAL RETURN FOR PERIODS ENDED 4/30/95 

                                                   Lehman Bros. 
                                                    Municipal 
                       NAV       Market price       Bond Index       CPI 
6 months               7.52%         15.37%            7.57%          1.61% 
1 year                 6.30           5.67             6.65           3.05 
5 years               64.37          68.63            49.85          17.84 
Annual average        10.45          11.02             8.43           3.34 
Life of fund 
(since 2/24/89)       73.58          68.84            64.07          24.92 
Annual average         9.32           8.83             8.33           3.66 



TOTAL RETURN FOR PERIODS ENDED 3/31/95 
(most current calendar quarter) 
                                                   Lehman Bros. 
                                                    Municipal 
                       NAV       Market price       Bond Index       CPI 
6 months               5.11%          8.89%            5.54%          1.34% 
1 year                 6.51           7.57             7.43           2.85 
5 years               62.38          63.38            48.59          17.64 
Annual average        10.18          10.32             8.24           3.30 
Life of fund 
(since 2/24/89)       73.52          64.69            63.88          24.51 
Annual average         9.46           8.52             8.43           3.66 


Performance data represent past results. Investment returns net asset value 
and market price will fluctuate so an investor's shares, when sold, may be 
worth more or less than their original cost. Fund performance data do not 
take into account any adjustment for taxes payable on reinvested 
distributions. 



                                       
<PAGE> 
TERMS AND DEFINITIONS 

Net asset value (NAV) is the value of all your fund's assets, minus any 
liabilities, the liquidation preference and cumulative undeclared dividends 
paid on the remarketed preferred shares, divided by the number of outstanding 
common shares. 

Market price is the current trading price of one share of the fund. Market 
prices are set by transactions between buyers and sellers on the New York 
Stock Exchange. 

COMPARATIVE BENCHMARKS 

Lehman Brothers Municipal Bond Index is an unmanaged list of long-term 
fixed-rate investment-grade tax-exempt bonds representative of the municipal 
bond market. The index does not take into account brokerage commissions or 
other costs, may include bonds different from those in the fund, and may pose 
different risks than the fund. 

Consumer Price Index (CPI) is a commonly used measure of inflation; it does 
not represent an investment return. 



                                       
<PAGE> 


A Putnam perspective on risk and reward 

You've probably been told how important it is to understand the relationship 
between an investment's potential rewards and its accompanying risks. Given 
the cautionary nature of such instructions, it may take most investors a 
while to realize that risk has a positive side. 

Every risk signals a potential reward. Selecting only those investments that 
offer the greatest degree of security generally leads to only modest rewards. 
Furthermore, even insured or guaranteed investments may be subject to changes 
in their rates of return or, in some cases, in their principal values. 
Experienced investors know that no investment is truly risk free and are 
therefore willing to take on some measure of risk in order to increase their 
potential gains. 

The greater the risk, the greater the potential reward. Accepting an 
appropriate level of investment risk can give you a better chance of 
outpacing inflation over time and seeking to maximize your investment's 
return. How much risk? Your financial 

(triangle) A RUNDOWN OF RISK TYPES 

MARKET RISK Most important for stock funds, but relevant to all funds, this 
is a measure of how sensitive a fund's holdings are to changes in general 
market conditions. Remember, though, that securities that lose value quickly 
in market declines may also show the strongest gains in more favorable 
environments. 

INTEREST-RATE RISK Since bond prices fall as interest rates rise, this type 
of risk is a particular concern for fixed-income investors. However, 
interest-rate increases can also have a substantial negative effect on the 
stock market. 

INFLATION RISK If your investments cannot keep pace with inflation, your 
money will begin to lose its purchasing power. Stock investments are 
generally considered among the best ways of addressing inflation risk over 
the long term. 



                                       
<PAGE> 

advisor's feedback and your time horizon can make all the difference in 
determining how much risk is compatible with your investment goals and your 
peace of mind. 

FITTING YOUR FUND SELECTION TO YOUR 
RISK TOLERANCE 

How do you find the right balance between investment risks and their 
potential rewards. It's helpful to understand the types of risks that can 
apply to different types of investments, and to look at your own portfolio 
with this perspective. 

For short-term goals, your first priority may be managing market risk. 
Longer-term investors may be more concerned with inflation risk. And all 
income-oriented investors should consider interest rate, credit, and 
prepayment risks carefully. 

CREDIT AND PREPAYMENT RISK Credit risk is the concern that the security's 
issuer will not be able to meet its payment, while prepayment risk involves 
the premature payoff of a loan, with a resulting loss of interest income. 
Professional management and in-depth research are invaluable in managing both 
these risks. 

LIQUIDITY RISK Not all investments can be readily converted into cash at 
their perceived market values. Liquidity risk can affect the price of 
securities held in the fund's portfolio and, thus, the fund's share prices. 

This list covers only the most general types of risks; however, each 
investment will also have its own specific risks. 

                                       
<PAGE> 

Portfolio of investments owned 
April 30, 1995 (Unaudited) 


<TABLE>
<CAPTION>
<C>                <S>                                               <C>         <C>
MUNICIPAL BONDS AND NOTES (98.0%)* 
PRINCIPAL AMOUNT                                                  RATINGS**           VALUE 
Arizona (2.6%) 
                   AZ Hlth. Fac. Auth. Hosp. Syst. Rev. 
                   Bonds 
$3,000,000          (St. Luke's Hosp. Syst.), Ser. A, 
                   10-1/8s, 11/1/15                                   Ba       $  3,138,750 
 3,425,000          (St. Luke's Hlth. Syst.), 7-1/4s, 11/1/14         Ba          3,934,468 
 2,000,000         Gila Cnty., Indl. Dev. Auth. Poll. Control 
                   Rev. Bonds, Ser. 85, 8.9s, 7/1/06                 Baa          2,170,000 
 4,000,000         Payson, Indl. Dev. Auth. Hosp. Rev. Bonds 
                    (Payson Regl. Med. Ctr. Inc. Project), 
                   7.7s, 10/1/23                                     B/P          3,725,000 
 3,500,000         Salt River, Agricultural Impt. & Pwr. 
                   Dist. Elec. Syst. Rev. Bonds (Salt River 
                   Project), Ser. B, MBIA, 5-1/4s, 1/1/19            AAA          3,132,500 
                                                                                 16,100,718 
California (13.0%) 
 5,700,000         Berkeley, Hlth. Fac. Rev. Bonds (Alta 
                   Bates Med. Ctr.), Ser. A, 6.55s, 12/1/22          Baa          5,308,125 
 7,430,000         CA Hlth. Facs. Fing. Rev. Bonds (Pac. 
                   Presbyterian), Ser. B, III, 6-3/4s, 6/1/15          A          7,448,575 
 5,000,000         Contra Costa, Wtr. Dist. Wtr. Rev. Bonds, 
                    Ser. G, MBIA, 5-1/2s, 10/1/19                    AAA          4,581,250 
 2,775,000         Corona, COP (Vista Hosp. Syst.), Ser. B, 
                   9-1/2s, 7/1/20                                   BB/P          2,892,937 
 5,000,000         Los Angeles, Dept. Wtr. & Pwr. Elec. Plant 
                   Rev. Bonds 2nd Issue, MBIA, 5-1/4s, 
                   11/15/26                                          AAA          4,362,500 
22,800,000         Metro. Wtr. Dist. Southern CA Wtrwrks. Rev 
                   Bonds, 6-3/4s, 7/1/18                             AAA        25,108,500 
 5,000,000         Riverside, Redev. Agcy. Rev. Bonds 
                   (Tax Alloc. Merged Redev. Project), 
                   Ser. A, MBIA, 5-5/8s, 8/1/23                      AAA          4,625,000 
 8,750,000         Santa Clara Cnty. Fing. Auth. Lease Rev. 
                   Bonds (Vmc. Fac. Replacement Project), 
                   Ser. A, AMBAC, 6-3/4s, 11/15/20                   AAA          9,275,000 
15,000,000         U. of CA Rev. Bonds (USCD Med. Ctr. 
                   Satellite Med. Fac.), 7.9s, 12/1/19               BBB         15,918,750 
                                                                                 79,520,637 
Colorado (4.9%) 
                   Denver CO City & Cnty. Arpt. Rev. Bonds 
 4,000,000          Ser. A, 8-3/4s, 11/15/23                         Baa          4,435,000 
 7,435,000          Ser. A, 8-1/2s, 11/15/23                         Baa          8,076,268 
 2,000,000          Ser. D, 7-3/4s, 11/15/21                         Baa          2,072,500 
 1,050,000          Ser. D, 7-3/4s, 11/15/13                         Baa          1,152,375 
 2,800,000          Ser. C, 6-3/4s, 11/15/13                         Baa          2,779,000 
11,970,000         Denver, City & Cnty. Special Fac. Arpt. 
                   Rev. Bonds (United Air Lines, Inc. 
                   Project), 
                    Ser. A, 6-7/8s, 10/1/32                          Baa         11,356,537 
                                                                                 29,871,680 
</TABLE>


                                       
<PAGE> 

<TABLE>
<CAPTION>
<C>                <S>                                             <C>         <C>
MUNICIPAL BONDS AND NOTES 
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE 
Florida (4.8%) 
$5,000,000         Hernando Cnty., Indl. Dev. Rev. Bonds 
                   (FL Crushed Stone Co.), 8-1/2s, 12/1/14          B/P       $ 5,250,000 
 7,900,000         Lee Cnty., Hosp. Board of Directors Hosp. 
                   IFB (Lee Memorial Hosp.), MBIA, 8.327s, 
                   4/1/20                                           AAA         8,235,750 
 3,500,000         Orange Cnty., Hlth. Fac. Auth. 1st. Mtge. 
                   Rev. Bonds (RHA/Princeton Hosp.), 9s, 
                   7/1/21                                           B/P         2,839,375 
 1,225,000         Palm Beach Cnty., Hlth. Fac. Auth. Rev. 
                   Rfdg. Bonds (JFK Med. Ctr. Inc. Project), 
                   8-7/8s, 12/1/18                                  BBB         1,332,187 
11,350,000         Tampa, Cap. Impt. Rev. Bonds, 
                   Ser. B, 8-3/8s, 10/1/18                          BBB        12,016,812 
                                                                               29,674,124 
Georgia (0.8%) 
 1,505,000         Atlanta, Special Purpose Fac. Rev. Bonds 
                   (Delta Air Lines, Inc. Project), Ser. B, 
                   7.9s, 12/1/18                                     Ba         1,557,675 
 3,250,000         Gwinnett Cnty., Indl. Dev. Auth. Rev. 
                   Bonds (Kawneer Co. Inc. Project), Ser. 
                   1984, 9-1/2s, 6/1/15                           BBB/P         3,485,625 
                                                                                5,043,300 
Idaho (0.7%) 
 4,000,000         Owyhee Cnty., Indl. Dev. Corp. Rev. Bonds 
                   (Envirosafe Svcs. of Idaho Inc.), 8-1/4s, 
                   11/1/02                                          B/P         3,990,000 
Illinois (4.7%) 
                   Chicago, O'Hare Intl. Arpt. Special Fac. 
                   Rev. Bonds (United Air Lines, Inc.) 
 5,528,000          Ser. B, 8.95s, 5/1/18                           Baa         6,066,980 
 3,325,000          Ser. 84A, 8.85s, 5/1/18                         Baa         3,682,437 
 1,895,000          Ser. 84B, 8.85s, 5/1/18                         Baa         2,098,712 
                   (American Airlines, Inc. Project), 
 5,000,000          Ser. A, 7-7/8s, 11/1/25                         Baa         5,187,500 
 3,000,000          8.2s, 12/1/24                                   Baa         3,311,250 
 2,500,000         IL Dev. Fin. Auth. Retirement Hsg. Rev. 
                   Bonds (Regency Park-Lincolnwood), 
                   Ser. A, 10-1/4s, 4/15/19+                        B/P         1,750,000 
 6,100,000         Robbins Res. Recvy. Rev. Bonds (Recov. 
                   Partners), Ser. A, 9-1/4s, 10/15/14              B/P         6,588,000 
                                                                               28,684,879 
Iowa (0.9%) 
                   IA Fin. Auth. Hlth. Care Fac. Rev. Bonds 
                   (Mercy Hlth. Initiatives Project), 
 3,000,000          9.95s, 7/1/19                                   B/P         2,940,000 
 2,350,000          9.85s, 7/1/09                                  BB/P         2,303,000 
                                                                                5,243,000 

                                       
<PAGE> 
MUNICIPAL BONDS AND NOTES 
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE 
Kansas (2.8%) 
$7,500,000         Burlington, Poll. Control, IFB (KS Gas & 
                   Electric), Ser. 91-4, MBIA, 9.168s, 
                   6/1/31 (acquired 12/17/91, cost 
                   $7,800,000)++                                    AAA       $ 8,334,375 
 8,400,000         Witchita, Hosp. IFB Ser. 111-A, MBIA, 
                   8.387s, 10/1/17#                                 AAA         8,841,000 
                                                                               17,175,375 
Kentucky (0.5%) 
 2,000,000         Kenton Cnty., KY Arpt. Brd. Arpt. Spl. 
                   Facs. Rev. Bonds (Delta Airlines 
                   Project), Ser. A, 7-1/2s, 2/1/20                  Ba         2,037,500 
 1,000,000         Scott Cnty., Indl. Dev. VRDN (Hoover 
                   Group Inc. Project), 8-1/2s, 11/1/14            VMIG1        1,025,000 
                                                                                3,062,500 
Louisiana (3.1%) 
 5,000,000         Hodge, Combined Util. Rev. Bonds 
                    (Stone Container Corp.), 9s, 3/1/10             B/P         5,281,250 
                   Port of New Orleans, Indl. Dev. Rev. 
                   Bonds 
                    (Continental Grain Co. Project), 
 4,000,000          Ser. A, 14-1/2s, 2/1/02                          BB         4,460,000 
 3,500,000          14-1/2s, 1/1/02                                  BB         3,885,000 
 5,050,000         West Feliciana Parish, Poll. Control Rev. 
                   Bonds (Gulf States Utils. Co. Project), 
                   8s, 12/1/24                                       Ba         5,258,312 
                                                                               18,884,562 
Maryland (0.8%) 
 4,000,000         MD State Hlth. & Higher Edl. Facs. Auth. 
                   Rev. Bonds (Doctors Cmnty. Hosp.), 
                   8-3/4s, 7/1/12                                   AAA         4,740,000 
Massachusetts (3.8%) 
                   MA State Hlth. & Edl. Fac. Auth. Rev. 
                   Bonds 
 3,000,000          (Norwood Hosp.), Ser. E, 8s, 7/1/12              Ba         2,868,750 
 4,000,000          (Rehab. Hosp. Cape & Islands), Ser. A, 
                   7-7/8s, 8/15/24                                 BB/P         3,960,000 
 1,010,000          (MA Eye & Ear Infirmary), 
                   Ser. A, 7-3/8s, 7/1/11                           Baa           969,600 
 2,340,000          (MA Eye & Ear Infirmary), Ser. A, 7.2s, 
                   7/1/02                                           Baa         2,287,350 
 1,000,000          (Norwood Hosp.), Ser. C, 7s, 7/1/14              Ba           820,000 
                   MA State Indl. Fin. Agcy. 1st. Mtge. Rev. 
                   Bonds 
 2,000,000          (Pioneer Valley Living Ctr.), 7s, 
                   10/1/20                                          B/P         1,775,000 
 1,323,784          (Pioneer Valley Living Ctr.), zero% s, 
                   10/1/20+                                         B/P             1,654 
 5,000,000         MA State Indl. Fin. Agcy. Resource Recvy. 
                   Rev. Bonds (Southeastern MA Project), 
                   Ser. B, 9-1/4s, 7/1/15                          BB/P         5,475,000 
 2,000,000         MA State Indl. Fin. Agcy. Rev. Bonds 
                   (Orchard Cove Inc.), 9s, 5/1/22                 BB/P         2,235,000 
 2,900,000         MA State Indl. Fin. Agcy. Tunnel Rev. 
                   Bonds (MA Tpk.), 9s, 10/1/20                   BBB/P         3,124,750 
                                                                               23,517,104 

                                       
<PAGE> 
MUNICIPAL BONDS AND NOTES
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE 
Michigan (9.1%) 
$4,690,000         Detroit, Local Dev. Fin. Auth. Tax 
                   Increment Rev. Bond (Chrysler Corp.), 
                   Ser. A, 9-1/2s, 5/1/21                         BBB/P       $ 5,762,837 
 4,000,000         Detroit, Swr. Disp. Rev. Bonds, FGIC, 
                   5.7s, 7/1/23                                     AAA         3,765,000 
                   Greater Detroit, Resource Recvy. Auth. 
                   Rev. Bonds 
 2,000,000          Ser. B, 9-1/4s, 12/13/08                        BBB         2,087,500 
 1,300,000          Ser. C, 9-1/4s, 12/13/08                        BBB         1,356,875 
 4,780,000         Highland Park, Hosp. Fin. Auth. Fac. Rev. 
                   Bonds 
                   (MI Hlth. Care Corp. Project), Ser. A, 
                   9-7/8s, 12/1/19                                    B         1,912,000 
 7,125,000         MI Pub. Pwr. Agcy. Rev. Bonds 
                    (Belle River Project), Ser. A, 5-1/4s, 
                   1/1/18                                            AA         6,350,156 
                   MI State Hosp. Fin. Auth. Rev. Bonds 
                    (Detroit-Macomb Hosp. Corp.), 
 3,035,000          Ser. A, 7.4s, 6/1/13                              B         2,818,756 
 4,300,000          Ser. A, 7.3s, 6/1/01                              B         4,251,625 
                   MI State Strategic Fund Ltd. Oblig. Rev. 
                   Bonds 
 7,000,000          (Env. Research Project), 8-1/8s, 10/1/14        A/P         7,551,250 
 4,000,000          (Blue Wtr. Fiber Project), 8s, 1/1/12           B/P         3,735,000 
 7,000,000         Midland Cnty., Econ. Dev. Corp. Poll. 
                   Control Rev. Bonds, Ser. B, 9-1/2s, 
                   7/23/09                                          B/P         7,490,000 
                   Pontiac Hosp. Fin. Auth. Rev. Bonds 
 4,890,000          6s, 8/1/23                                      Baa        4,040,362 
 1,050,000          6s, 8/1/18                                      Baa          884,625 
 1,495,000          6s, 8/1/13                                      Baa        1,289,437 
 2,150,000         Wayne Charter Cnty., Special Arpt. Fac. 
                   Rev. Bonds (Republic Air Lines, Inc. 
                   Project), 10-3/8s, 12/1/15                       B/P         2,246,750 
                                                                               55,542,173 
Minnesota (1.4%) 
 5,300,000         Bass Brook, Poll. Control Rfdg., Rev. 
                   Bonds 
                   (Pwr. & Lt. Co. Project), 6s, 7/1/22               A         5,088,000 
 1,985,000         Chaska, Indl. Dev. Rev. Bonds 
                    (Lifecore Biomedical Inc. Project), 
                   10-1/4s, 9/1/20                                 BB/P         2,277,787 
 1,000,000         Rochester, Hlth. Care Fac. IFB (Mayo 
                   Foundation), Ser. H, 7.22s, 11/15/15              AA           960,000 
                                                                                8,325,787 
Mississippi (0.8%) 
 4,100,000         Claiborne Cnty., Poll. Control Rev. 
                   Bonds 
                    (Middle South Energy, Inc.), Ser. A, 
                   9-1/2s, 12/1/13                                BBB/P         4,607,375 
Missouri (0.7%) 
 4,000,000         Kansas City, Indl. Dev. Auth. Hlth. Fac. 
                   Rev. Bonds (Park Lane Med. Ctr. Project), 
                   8-3/4s, 1/1/15                                 BBB/P         4,315,000 

                                      
<PAGE> 
MUNICIPAL BONDS AND NOTES 
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE 
Nebraska (1.7%) 
$2,000,000         Gage Cnty. Indl. Dev. VRDN 
                    (Hoover Group Inc. Project), 8-1/2s, 
                   12/1/07                                         VMIG3      $ 2,057,500 
                   NE Investment Fin. Auth. Single Fam. 
                   Mtge. IFB 
 1,400,000          Ser. B, GNMA, 10.557s, 3/15/22                  AAA         1,552,250 
 6,465,000          Ser. 1, MBIA, GNMA, 8-1/8s, 8/15/38#            AAA         6,764,006 
                                                                               10,373,756 
Nevada (2.4%) 
                   Clark Cnty., Indl. Dev. Rev. Bonds 
 4,000,000          (NV Pwr. Co. Project), 7.8s, 6/1/20             Baa         4,170,000 
11,750,000          (Southwest Gas Corp.), Ser. A, 6-1/2s, 
                    12/1/33                                         Baa        10,839,375 
                                                                               15,009,375 
New Hampshire (0.9%) 
 2,240,000         NH Higher Edl. & Hlth. Fac. Auth. Rev. 
                   Bonds (Alice Peck Day Memorial Hosp. 
                   Project), 9-3/8s, 11/1/20                       BB/P         2,419,200 
 2,800,000         NH State Indl. Dev. Auth. Poll. Control 
                   Rev. Bonds (United Illuminating Co.), 
                   Ser. B, 10-3/4s, 10/1/12                         Baa         3,160,500 
                                                                                5,579,700 
New Jersey (1.7%) 
                   NJ Hlth. Care Fac. Fing. Auth. Rev. 
                   Bonds 
 4,680,000          (Mountainside Hosp.), FHA Ser. A, 9s, 
                   8/1/25                                           AAA         4,820,400 
 5,000,000          (St. Elizabeth Hosp.), Ser. B, 8-1/4s, 
                   7/1/20                                           Baa         5,300,000 
                                                                               10,120,400 
New York (10.9%) 
                   NY City G.O. Bonds 
 3,635,000          8-1/4s, 11/15/10                                  A         3,980,325 
 3,365,000          Ser. F, Rfdg. 8-1/4s, 11/15/10                    A        3,979,112 
 4,925,000          Ser. D, Group C, 8s, 8/1/18                     AAA         5,756,094 
11,400,000          Ser. A, 6-1/4s, 8/1/17                            A        10,787,250 
 2,730,000          Ser E 5-5/8s, 8/1/14                              A         2,395,575 
 3,975,000         NY City Hlth. & Hosp. Rev. Bonds, 
                    Ser. A, 6.3s, 2/15/20                           Baa         3,607,313 
 2,750,000         NY City. Hlth. & Hosp. Corp. Rev. Bonds 
                    Ser. A, 6s, 2/15/07                             Baa         2,550,625 
                   NY State Dorm. Auth. Rev. Bonds 
                   (Court Facs. Lease) Ser. A 
 6,000,000          5-3/8s, 5/15/16                                 Baa        5,235,000 
 3,000,000          5-1/2s, 5/15/23                                 Baa         2,610,000 
 8,000,000          5-1/4s, 5/15/21                                 Baa        6,730,000 
                   NY State Energy R & D Auth. Elec. Facs. 
                   Auth. Rev. Bonds (Long Island Ltg.), 
 5,000,000          Ser. A, 7.15s, 6/1/20                            Ba         4,806,250 
 6,000,000          Ser. A, 7.15s, 12/1/20                           Ba         5,767,500 
 2,000,000          Ser. D, 6.9s, 8/1/22                             Ba         1,862,500 

                                       
<PAGE> 
MUNICIPAL BONDS AND NOTES 
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE 
New York (continued) 
$2,250,000         NY State Hsg. Fin. Agcy. Svcs. Contract 
                   Oblig. Rev. Bonds, Ser. A, 5-1/2s, 
                   9/15/22                                          Baa       $ 1,963,125 
 5,000,000         NY State Med. Care Facs. Fin. Agcy. Rev. 
                   Bonds, Ser. A, AMBAC 6-1/2s, 8/15/29             AAA         5,131,250 
                                                                               67,161,919 
North Carolina (3.2%) 
                   NC Eastern Muni. Pwr. Agcy. Pwr. Sys. Rev. Bonds 
10,500,000          Ser. B, 6s, 1/1/22                                A         9,699,375 
10,890,000          (Pwr. Systs. Rev.), Ser. D, 5-7/8s, 
                   1/1/13                                             A        10,114,087 
                                                                               19,813,462 
Ohio (4.1%) 
 1,950,000         Dayton, Special Fac. Rev. Bonds 
                    (Emery Air Freight Corp.), Ser. A, 
                   12-1/2s, 10/1/09                                 B/P         2,288,812 
20,000,000         OH State Air Quality Dev. Auth. Poll. 
                   Control Rev. Bonds (Cleveland Co. 
                   Project), FGIC, 8s, 12/1/13#                     AAA        23,175,000 
                                                                               25,463,812 
Oklahoma (0.7%) 
 2,975,000         Oklahoma Cnty., Indl. Auth. Rev. Bonds 
                    (Epworth Villa Project), Ser. A, 
                   10-1/4s, 4/1/19                                 BB/P         3,224,156 
 1,500,000         Tulsa, Indl. Auth. Hosp. Rev. Bonds 
                   (Tulsa Regl. Med. Ctr.), 7.2s, 6/1/17            BBB         1,428,750 
                                                                                4,652,906 
Pennsylvania (3.7%) 
 4,000,000         Allegheny Cnty., Indl. Dev. Auth. Arpt. 
                   Special Facs. Rev. Bonds (U.S. Air Inc. 
                   Project), Ser. B, 8-1/2s, 3/1/21                   B         4,020,000 
 2,250,000         Allentown Hosp. Auth. Rev. Bonds (Sacred 
                   Heart Hosp.), Ser. A, 6-3/4s, 11/15/14           BBB         2,100,949 
 1,250,000         PA Econ. Dev. Fin. Auth. Rev. Bonds 
                   (MacMillan Ltd. Partnership Project), 
                   7.6s, 12/1/20                                    Baa         1,315,625 
 7,000,000         PA Econ. Dev. Fing. Auth. Recycling Rev. 
                   Bonds (Ponderosa Fibres Project), Ser. A, 
                   9-1/4s, 1/1/22                                   B/P         7,070,000 
 2,200,000         PA Economic Dev. Fing. Auth. Rev. Bonds 
                    (Resource Recvy. Rev. Sub. Northampton 
                   Generating), Ser. C, 6-7/8s, 1/1/11             BB/P         2,010,250 
 6,000,000         PA State Higher Edl. Assistance Agcy. IFB 
                   Ser. B, MBIA, 10.438s, 3/1/20#                   AAA         6,592,500 
                                                                               23,109,324 
South Carolina (0.9%) 
 5,000,000         SC State Hsg. Fin. & Dev. Auth. 
                   Multi-Fam. Mtge. Rev. Bonds, 8-1/2s, 
                   10/1/21                                          BBB         5,481,250 

                                      17 
<PAGE> 
MUNICIPAL BONDS AND NOTES 
PRINCIPAL AMOUNT                                                 RATINGS**          VALUE
Texas (6.2%) 
$2,850,000         Amarillo, Hlth. Fac. Hosp. Corp. IFB 
                   (High Plains Baptist Hosp.), FSA, 8.582s, 
                   1/3/22#                                          AAA       $ 2,946,187 
                   Bexar Cnty., Hlth. Fac. Dev. Corp. Rev. 
                   Bonds 
 3,170,000          (Heartway Corp.), Ser. A-1, 10-1/4s, 
                   3/1/19                                           B/P         3,170,000 
   500,000          (St. Luke's Lutheran Hosp. Project), 
                   7.9s,  5/1/18                                    BBB           583,750 
 3,200,000          7.9s, 5/1/11                                    BBB         3,736,000 
 7,250,000         Brazos River, Poll. Control Auth. Rev. 
                   Bonds (TX Utils. Elec. Co. Project), Ser. 
                   A, 7-7/8s, 3/1/21                                Baa         7,630,625 
                   Houston, Hsg. Fin. Corp. Single Fam. 
                   Mtge. Rev. Bonds 
 2,366,000          Ser. A, Verex Mtg. Ins., 10-7/8s, 
                   2/15/16                                          Baa         2,419,235 
 1,965,000         (Lomas & Nettleton Administration Co.), 
                   Ser. B, 10-3/8s, 12/15/13                        Baa         1,989,562 
 2,000,000         Lone Star, TX Arpt. Impt. Auth. Inc. Rev. 
                   Bonds (American Airlines Inc. Project), 
                   9-1/8s, 12/1/15                                  Baa         2,072,500 
 3,000,000         Southeast TX Multi-Fam. Hsg. Fin. Corp. 
                   Rev. Bonds 
                    (Bayou Pk. Village Apt. Project), 
                    Ser. B, 10.175s, 8/1/16                         B/P         3,045,000 
 2,500,000         (Promenade Place Apts. Project), 
                   Ser. B, 10.175s, 8/1/16                          B/P         2,515,625 
 5,000,000         (Pavilion Place Apts. Project), Ser. A, 
                   7.6s, 7/1/16                                   BBB/P         4,950,000 
 3,000,000         Tarrant Cnty., Hlth. Facs. Dev. Corp. 
                   Hosp. Rev. Bonds (Cmnty. Hlth. Care 
                   Fndtn. Inc. Project), 10-1/8s, 4/1/21            B/P         3,146,250 
                                                                               38,204,734 
Utah (0.9%) 
 5,350,000         Intermountain Power Agcy. Power Supply 
                   Rev. Bonds, Ser. D, AMBAC, 7-3/4s, 7/1/20        AAA         5,751,250 
Virginia (1.8%) 
 5,400,000         Fredericksburg, Indl. Dev. Auth. Hosp. 
                   Fac. IFB, FGIC, 8.607s, 8/15/23#                 AAA         5,710,500 
                   Winchester, Indl. Dev. Auth. Hosp. Rev. 
                   Bonds 
 3,200,000          stepped-coupon, 6.3s, (5-1/2s, 7/1/98), 
                    CMT/SURF, AMBAC, 1/1/15+++                      AAA         2,980,000 
 2,300,000          stepped-coupon, (5-1/2s, 7/1/98), 6.15s, 
                    CMT/SURF, AMBAC, 1/1/15+++                      AAA         2,124,625 
                                                                               10,815,125 
Washington (3.5%) 
                   WA State Pub. Pwr. Supply Syst. Rev. 
                   Bonds 
                    (Nuclear Project No. 1), 
 9,685,000          Ser. A, Rfdg. 7-1/2s, 7/1/15                    AAA        10,762,456 
 6,315,000          Ser. A, 7-1/2s, 7/1/15                           AA         6,772,837 
 4,000,000          Ser A, MBIA, 5.7s, 7/1/17                       AAA         3,740,000 
                                                                               21,275,293 
                   Total Municipal Bonds (cost $579,502,602)                 $601,110,520 
</TABLE>


                                       
<PAGE> 


PUT OPTIONS PURCHASED (FUTURE CONTRACTS) (--%) (cost $1,315,240) 
                                             EXPIRATION
CONTRACT                                        DATE/ 
  AMOUNT                                    STRIKE PRICE          VALUE
79,400,000  U.S. Treasury Bond Futures     June 1995/102   $     31,760 
            Total Investments 
            (cost $580,817,842)***                         $601,142,280 


Key to Abbreviation of Municipal Instruments 
COP              -- Certificate of Participation 
IFB              -- Inverse Floating Bonds 
G.O. Bonds       -- General Obligation Bonds 
VRDN             -- Variable Rate Demand Bonds 
Key to Abbreviation of Insurers 
AMBAC            -- American Municipal Bond Assurance Corporation 
FGIC             -- Federal Guaranty Insurance Corporation 
FHA              -- Federal Housing Administration 
FSA              -- Financial Security Assurance 
GNMA             -- Government National Mortgage Association 
III              -- Industrial Indemnity Insurance 
MBIA             -- Municipal Bond Investors Assurance 


* Percentages indicated are based on net assets of $613,298,559. Net assets 
available to common shareholders are $438,022,195 which correspond to a net 
asset value per common share of $9.80. 

** The Moody's or Standard & Poor's ratings indicated are believed to be the 
most recent ratings available at April 30, 1995 for the securities listed. 
Ratings are generally ascribed to securities at the time of issuance. While 
the agencies may from time to time revise such ratings, they undertake no 
obligation to do so, and the ratings do not necessarily represent what the 
agencies whould ascribe to these securities at April 30, 1995. Securities 
rated by Putnam are indicated by "/P" and are not publicly rated. 

+ Non-income-producing security. 

+++ The interest rate and date shown parenthetically represents the new 
interest rate to be paid and the date the fund will begin receiving interest 
at this rate. 

# A portion of this security was pledged to cover margin requirements for 
future contracts and written options at April 30, 1995. The market value of 
segregated securities with the custodian for transactions on future contracts 
and written options is $48,954,881 or 8.0% of net assets. 

++ Restricted as to public resale. At the date of acquistion these securities 
were valued at cost. There were no outstanding securities of the same class 
as those held. Total market value of restricted securities owned at April 30, 
1995 was $8,334,375 or 1.4% of net assets. 

*** The aggregate identified cost for federal income tax purposes is 
$581,033,827, resulting in gross unrealized appreciation and depreciation of 
$29,115,792, and $9,007,339, respectively, or net unrealized appreciation of 
$20,108,453. 


                                       
<PAGE> 

The fund had the following industry group concentrations greater than 10% of 
net assets on April 30, 1995 (based on net assets): 

   Hospitals/Healthcare  22.2% 
   Utilities             21.1 
   Transportation        12.0 

The rates shown on Variable Rate Demand Notes (VRDN) and Inverse Floating 
Bonds (IFB) are the current interest rates at April 30, 1995, which are 
subject to change based on the terms of the security. 

The table below shows the percentage of the fund's investments on April 30, 
1995 in securities assigned to the various rating categories by Moody's and 
Standard & Poor's and in unrated securities determined by Putnam Management 
to be of comparable quality: 

                                        Unrated securities of 
                    Rated securities     comparable quality, 
                   as a percentage of     as a percentage of 
     Rating        fund's net assets      fund's net assets 

"AAA"/"Aaa"               28.2%                   -- 
"AA"/"Aa"                  2.3                    -- 
"A"/"A"                    8.7                    1.2% 
"BBB"/"Baa"               28.5                    4.7 
"BB"/"Ba"                  6.6                    4.0 
"B"/"B"                    2.1                   11.2 
"VMIG1"                    0.2                    -- 
"VMIG3"                    0.3                    -- 
                          76.9%                  21.1% 

WRITTEN CALL OPTIONS OUTSTANDING ON APRIL 30, 1995 
  (premium received $1,893,798) 
Contract                                    Expiration Date/ 
  Amounts                                     Strike Price         Value 
79,800,000 U.S. Treasury Bond Futures        June 1995/102       $2,705,220 


The accompanying notes are an integral part of these financial statements. 

                                       
<PAGE> 

Statement of assets and liabilities 
April 30, 1995 (Unaudited) 


Assets 
Investments in securities, at value (identified cost 
  $580,817,842) (Note 1)                                       $601,142,280 
Cash                                                                284,283 
Interest receivable                                              14,062,789 
Receivable for securities sold                                    4,551,736 
Total assets                                                    620,041,088 
Liabilities 
Distributions payable to shareholders                             2,838,220 
Payable for compensation of Manager (Note 3)                      1,009,302 
Payable for compensation of Trustees (Note 3)                           182 
Payable for administrative services (Note 3)                          1,265 
Payable for investor servicing and custodian fees (Note 3)          116,845 
Payable for options written (premium receivable $1,893,798)       2,705,220 
Other accrued expenses                                               71,495 
Total liabilities                                                 6,742,529 
Net assets                                                     $613,298,559 
Represented by 
Series A, B, and C remarketed preferred shares, without par 
  value; 8,000 shares authorized (1,750 shares issued at 
  $100,000 per share liquidation preference) (Note 2)          $175,000,000 
Common shares, without par value; unlimited shares 
  authorized; 44,696,374 shares outstanding                     412,175,207 
Undistributed net investment income                              18,135,081 
Accumulated net realized loss on investments, written 
  options and futures contracts                                 (11,524,745) 
Net unrealized appreciation of investments, options              19,513,016 
Net assets                                                     $613,298,559 
Computation of net asset value 
Remarketed preferred shares at liquidation preference          $175,000,000 
Cumulative undeclared dividends on remarketed preferred 
  shares                                                            276,364 
Net assets allocated to remarketed preferred shares at 
  liquidation preference                                        175,276,364 
Net assets available to common shares: 
Net asset value per share $9.80 ($438,022,195 divided by 
  44,696,374 shares)                                            438,022,195 
Net assets                                                     $613,298,559 

    The accompanying notes are an integral part of these financial statements. 



                                       
<PAGE> 

Statement of operations 
Six months ended April 30, 1995 (Unaudited) 

Tax exempt income                                             $23,026,453 
Expenses: 
Compensation of Manager (Note 3)                                 2,013,689 
Investor servicing and custodian fees (Note 3)                     247,903 
Compensation of Trustees (Note 3)                                    9,560 
Reports to shareholders                                             46,006 
Auditing                                                            16,678 
Legal                                                               16,596 
Postage                                                             39,996 
Administrative services (Note 3)                                     7,487 
Exchange listing fees                                               18,399 
Registration fees                                                    1,071 
Preferred share remarketing agent fees                             229,884 
Other                                                                8,570 
Total expenses                                                   2,655,839 
Net investment income                                           20,370,614 
Net realized loss on investments (Notes 1 and 4)                (4,806,422) 
Net realized loss on written options (Notes 1 and 4)            (1,609,352) 
Net realized loss on futures contracts (Notes 1 and 4)            (729,188) 
Net unrealized appreciation of investments, written options 
  and futures contracts during the period                       21,203,646 
Net gain on investments                                         14,058,684 
Net increase in net assets resulting from operations           $34,429,298 

    The accompanying notes are an integral part of these financial statements. 

                                       
<PAGE> 
Statement of changes in net assets 


                                                 Six months 
                                                    ended        Year ended 
                                                  April 30,     October 31, 
                                                    1995*           1994 
Increase (decrease) in net assets 
Operations: 
Net investment income                           $ 20,370,614    $ 41,590,495 
Net realized loss on investments, written 
  options and futures contracts                   (7,144,962)     (4,278,598) 
Net unrealized appreciation (depreciation) of 
  investments, written options and futures 
  contracts                                       21,203,646     (56,090,200) 
Net increase (decrease) in assets resulting 
  from operations                                 34,429,298     (18,778,303) 
Distributions to remarketed preferred 
  shareholders from net investment income         (3,486,801)     (4,753,458) 
Net increase (decrease) in assets resulting 
  from operations applicable to common 
  shareholders (excluding cumulative 
  undeclared dividends on remarketed 
  preferred shares of $276,364 and $237,109 
  respectively)                                   30,942,497     (23,531,761) 
Distributions to common shareholders from: 
Net investment income                            (16,987,102)    (33,732,841) 
Net realized gain on investments                     --           (4,069,833) 
Issuance of common shares in connections with 
  reinvestment of distributions                    2,351,608       5,504,121 
Total increase (decrease) in net assets           16,307,003     (55,830,314) 
Net assets 
Beginning of period                              596,991,556     652,821,870 
End of period/year (including undistributed 
  net investment income of $18,135,081 and 
  $18,238,370 respectively)                     $613,298,559    $596,991,556 
Number of fund shares 
Common shares outstanding at beginning of 
  period                                          44,449,876      43,918,097 
Common shares issued in connection with 
  reinvestment of distributions                      246,498         531,779 
Common shares outstanding at end of period        44,696,374      44,449,876 
Remarketed preferred shares outstanding at 
  beginning and end of period                          1,750           1,750 

* Unaudited. 

  The accompanying notes are an integral part of these financial statements. 

                                       
<PAGE> 

Financial Highlights 
(For a share outstanding throughout the period) 

<TABLE>
<CAPTION>
                                    Six months 
                                      ended 
                                     April 30                    Year ended October 31 
                                      1995*        1994       1993        1992       1991       1990 
<S>                                  <C>         <C>        <C>         <C>        <C>        <C>
Net asset value, 
  beginning of period 
  (common shares)                    $   9.49    $  10.88   $   9.81    $   9.44   $   8.94   $   9.31 
Investment operations: 
Net investment income                     .46         .94        .98        1.01       1.02       1.02 
Net realized and unrealized gain 
  (loss) on investments                   .31       (1.37)      1.04         .26        .44       (.35) 
Total from investment operations          .77        (.43)      2.02        1.27       1.46        .67 
Distributions to shareholders from: 
Net investment income 
 To preferred shareholders               (.08)       (.11)      (.11)       (.14)      (.20)      (.25) 
 To common shareholders                  (.38)       (.76)      (.76)       (.76)      (.76)      (.76) 
Net realized gain on investments 
  To common shareholders                --           (.09)      (.08)      --         --          (.02) 
Total distributions                      (.46)       (.96)      (.95)       (.90)      (.96)     (1.03) 
Initial offering expenses               --          --         --          --         --          (.01) 
Net asset value, end of period 
  (common shares)                    $   9.80    $   9.49   $  10.88    $   9.81   $   9.44   $   8.94 
Market value, end of period 
  (common shares)                    $ 10.25     $   9.25   $  11.38    $   9.88   $  10.00   $   8.88 
Total investment return 
  at market value 
  (common shares) (%)                $  15.37(b)   (11.56)     24.84        6.72      22.33       1.72 
Net assets, end of period 
  (total fund)(in thousands)         $613,299    $596,992   $652,660    $600,849   $580,495   $555,583 
Ratio of expenses to average net 
  assets (%)(a)                           .62(b)     1.23       1.22        1.24       1.33       1.29 
Ratio of net investment income 
  to average net assets (%)(a)           3.97(b)     9.20       8.44        8.94       8.92       8.39 
Portfolio turnover rate (%)             36.39(b)    48.40      35.16       67.72      49.62      41.48 
</TABLE>

* Unaudited. 

(a) Ratios reflect net assets available to common shares only; net investment 
income ratio also reflects reduction for income dividend payments and 
undeclared payments to preferred shareholders. 

(b) Not annualized. 

                                       
<PAGE> 
Notes to financial statements 
April 30, 1995 (Unaudited) 

Note 1 
Significant accounting policies 

The fund is registered under the Investment Company Act of 1940, as amended, 
as a diversified, closed-end management investment company. The fund's 
investment objective is to seek a high level of current income exempt from 
federal income tax. The fund intends to achieve its objective by investing in 
a diversified portfolio of tax-exempt municipal securities which Putnam 
believes does not involve undue risk to income or principal. Up to 50% of the 
fund's assets may consist of high-yield tax-exempt municipal securities that 
are below investment grade and involve special risk considerations. The fund 
also uses leverage by issuing preferred shares in an effort to increase the 
income to the common shares. 

The following is a summary of significant accounting policies consistently 
followed by the fund in the preparation of its financial statements. The 
policies are in conformity with generally accepted accounting principles. 

A) Security valuation Tax-exempt bonds and notes are stated on the basis of 
valuations provided by a pricing service, approved by the Trustees, which 
uses information with respect to transactions in bonds, quotations from bond 
dealers, market transactions in comparable securities and various 
relationships between securities in determining value. The fair value of 
restricted securities is determined by the Manager following procedures 
approved by the Trustees, and such valuations and procedures are reviewed 
periodically by Trustees. 

B) Determination of net asset value Net asset value of the common shares is 
determined by dividing the value of all assets of the fund (including accrued 
interest and dividends), less all liabilities (including accrued expenses), 
and the liquidation value of any outstanding remarketed preferred shares, by 
the total number of common shares outstanding. 

C) Security transactions and related investment income Security transactions 
are accounted for on the trade date (date the order to buy or sell is 
executed). Interest income is recorded on the accrual basis. 

D) Futures The fund may purchase and sell financial futures contracts to 
hedge against changes in the values of tax-exempt municipal securities the 
fund owns or expects to purchase. 

A futures contract is an agreement between two parties to buy or sell units 
of a particular index or a certain amount of a U.S. Government security at a 
set price on a future date. 

Upon entering into such a contract the fund is required to pledge to the 
broker an amount of cash or securities equal to the minimum "initial margin" 
requirements of the futures. Pursuant to the contract, the fund agrees to 
receive from or pay to the broker an amount of cash equal to the daily 
fluctuation in value of the contract. Such receipts or payments are known as 
"variation margin" and are recorded by the fund as unrealized gains or 
losses. When the contract is closed, the fund records a realized gain or loss 
equal to the difference between the value of the contract at the time it was 
opened and the value at the time it was closed. 

The potential risk to the fund is that the change in value of futures 
contracts primarily corresponds with the value of underlying instruments 
which may not correspond to the change in value of the 

                                       
<PAGE> 

hedged instruments. In addition, there is a risk that the fund may not be 
able to close out its futures positions due to an illiquid secondary market. 

E) Option accounting principles The fund may, to the extent consistent with 
its investment objective and policies, seek to increase its current returns 
by writing covered call and put options on securities it owns or in which it 
may invest. When a fund writes a call or put option, an amount equal to the 
premium received by the fund is included in the fund's "Statement of assets 
and liabilities" as an asset and an equivalent liability. The amount of the 
liability is subsequently "marked-to-market" to reflect the current market 
value of an option written. The current market value of an option is the last 
sale price or, in the absence of a sale, the last offering price. If an 
option expires on its stipulated expiration date, or if the fund enters into 
a closing purchase transaction, the fund realizes a gain (or loss if the 
closing purchase transaction exceeds the premium received when the option was 
written) without regard to and unrealized gain or loss on the underlying 
security, and the liability related to such option is extinguished. If a 
written call option is exercised, the fund realizes a gain or loss from the 
sale of the underlying security and the proceeds of the sale are increased by 
the premium originally received. If a written put option is exercised, the 
amount of the premium originally received reduces the cost of the security 
that the fund purchases upon exercise of the option. 

The risk in writing a call option is that the fund relinquishes the 
opportunity to profit if the market price of the underlying security 
increases and the option is exercised. In writing a put option, the fund 
assumes the risk of incurring a loss if the market price of the underlying 
security decreases and the option is exercised. In addition, there is the 
risk the fund may not be able to enter into a closing transaction because of 
an illiquid secondary market. 

The fund may also, to the extent consistent with its investment objectives 
and policies, buy put options to protect its portfolio holdings in an 
underlying security against a decline in market value. The fund may buy call 
options to hedge against an increase in the price of the securities that the 
fund ultimately wants to buy. These funds may also buy and sell combinations 
of put and call options on the same underlying security to earn additional 
income. The premium paid by a fund for the purchase of a put or call option 
is included in the fund's "Statement of assets and liabilities" as an 
investment and is subsequently "marked-to-market" to reflect the current 
market value of the option. If an option the fund has purchased expires on 
the stipulated expiration date, the fund realizes a loss in the amount of the 
cost of the option. If the fund enters into a closing sale transaction, the 
fund realizes a gain or loss, depending on whether proceeds from the closing 
sale transaction are greater or less than the cost of the option. If the fund 
exercises a call option, the cost of securities acquired by exercising the 
call is increased by the premium paid to buy the call. If the fund exercises 
a put option, it realizes a gain or loss from the sale of the underlying 
security and the proceeds from such sale are decreased by the premium 
originally paid. The risk associated with purchasing options is limited to 
the premium originally paid. 

F) Federal taxes It is the policy of the fund to distribute all of its income 
within the prescribed time and otherwise comply with the provisions of the 
Internal Revenue Code applicable to regulated investment companies. It is 
also the intention of the fund to distribute an amount sufficient to avoid 
imposition of any excise tax under Section 4982 of the Internal Revenue 



                                       
<PAGE> 
Code of 1986. Therefore, no provision has been made for federal taxes on 
income, capital gains or unrealized appreciation of securities held and 
excise tax on income and capital gains. 

At October 31, 1994, the fund had capital loss carryovers of approximately 
$3,958,000, available to offset future realized capital gains, if any. This 
amount will expire October 31, 2002. To the extent that capital loss 
carryovers are used to offset realized gains, it is unlikely that gains so 
offset will be distributed to shareholders, since any such distribution might 
be taxable as ordinary income. 

G) Distributions to shareholders Distributions to common and preferred 
shareholders are recorded by the fund on the ex-dividend date. Dividends on 
each share of remarketed preferred shares will accumulate from its Date of 
Original Issue and will be payable, when, as and if declared by the Board of 
Trustees, on the applicable Dividend Payment Dates. The dividend period for 
Series A and B is a 28-day period, and the dividend period for Series C is a 
7-day period. The applicable dividend rates for the remarketed preferred 
shares on April 30, 1995 were: Series A 4.15%; Series B 4.15%; Series C 
4.35%. 

The amount and character of income and gains to be distributed are determined 
in accordance with income tax regulations which may differ from generally 
accepted accounting principles. Reclassifications are made to the fund's 
capital accounts to reflect income and gains available for distribution (or 
available capital loss carryovers) under income tax regulations. For the 
period ended April 30, 1995 there were no current adjustments as a result of 
the AICPA Statement of Position (SOP) 93-2 "Determination, Disclosure and 
Financial Statement Presentation of Income, Capital Gain and Return of 
Capital Distributions, by Investment Companies." 

H) Amortization of bond premium and discount Any premium resulting from the 
purchase of securities in excess of maturity value is amortized on a yield- 
to-maturity basis. Discount on zero-coupon bonds, original issued discount 
bonds and step-up bonds is accreted according to the effective yield method. 

Note 2 
Remarketed Preferred Shares 
On September 28, 1989 the fund issued 550 shares Series A Remarketed 
Preferred (RP), 550 shares Series B RP and 650 shares Series C RP 
(collectively, the "Original RP"). The Original RP Shares are redeemable at 
the option of the fund on any dividend payment date at a redemption price of 
$100,000 per share, plus an amount equal to any dividends accumulated on a 
daily basis but unpaid through the redemption date (whether or not such 
dividends have been declared) and, in certain circumstances, a call premium. 
Undeclared dividends on preferred shares on April 30, 1995 amounted to 
$276,364. 

It is anticipated that dividends paid to holders of remarketed preferred 
shares will be considered tax-exempt dividends under the Internal Revenue 
Code of 1986, as amended. To the extent that the fund earns taxable income 
and capital gains by the conclusion of a fiscal year, it will be required to 
apportion to the holders of the remarketed preferred shares throughout that 
year additional dividends as necessary to result in an after-tax yield 
equivalent to the applicable dividend rate for the period. For the six months 
ended April 30, 1995, the fund has earned no such taxable income or gains. 

Under the Investment Company Act of 1940, the fund is required to maintain 
asset coverage of at least 200% with respect to the remarketed preferred 
shares as of the last business day of each month in which any such shares are 
outstanding. Additionally, the fund is required to meet more stringent asset 
coverage requirements under the terms of the remarketed preferred shares and 

                                       
<PAGE> 
the shares' rating agencies. Should these requirements not be met, or should 
dividends accrued on the remarketed preferred shares not be paid, the fund 
may be restricted in its ability to declare dividends to common shareholders 
or may be required to redeem certain of the remarketed preferred shares. At 
April 30, 1995, no such restrictions have been placed on the fund. 

Note 3 
Management fee, administrative services, and other transactions 
Compensation of Putnam Investment Management, for management and investment 
advisory services, is paid quarterly based on the average net assets of the 
fund, including proceeds from the remarketed preferred offering. Such fee is 
based on the annual rate of 0.70% of the first $500 million, 0.60% of the 
next $500 million, 0.55% of the next $500 million and 0.50% of any amount 
over $1.5 billion. 

If dividends payable on remarketed preferred shares during any dividend 
payment period plus any expenses attributable to remarketed preferred shares 
for that period exceed the fund's net income attributable to the proceeds of 
the remarketed preferred shares during that period, then the fee payable to 
Putnam for that period will be reduced by the amount of the excess (but not 
more than .70% of the liquidation preference of the remarketed preferred 
shares outstanding during the period). 

The fund also reimburses the Manager for the compensation and related 
expenses of certain officers of the fund and their staff who provide 
administrative services to the fund. The aggregate amount of all such 
reimbursements is determined annually by the Trustees. 

Trustees of the fund receive an annual Trustee's fee of $970 and an 
additional fee for each Trustees' meeting attended. Trustees who are not 
interested persons of the Manager and who serve on committees of the Trustees 
receive additional fees for attendance at certain committee meetings. 

Custodial functions for the fund are provided by Putnam Fiduciary Trust 
Company (PFTC), a subsidiary of Putnam Investments, Inc. Investor servicing 
agent functions for the fund's common shares are currently provided by Putnam 
Investor Services, Inc., a division of PFTC. 

Investor servicing and custodian fees reported in the Statement of Operations 
for the six months ended April 30, 1995, have been reduced by credits allowed 
by PFTC. 

Note 4 
Purchases and sales of securities 
During the six months ended April 30, 1995, purchases and sales of investment 
securities other than short-term investments and pre-refundings aggregated 
$211,465,612 and $215,308,853, respectively. Purchases and sales of 
short-term obligations aggregated $110,340,000 and $110,340,000, 
respectively. In determining the net gain or loss on securities sold, the 
cost of securities has been determined on the identified cost basis. 

Written option transactions during the period are summarized as follows: 

<TABLE>
<CAPTION>
                                           Contract          Premiums 
                                           Amounts           Received 
<S>                                      <C>                <C>
Outstanding at beginning of period            --                 -- 
Options written                           230,300,000       $ 3,635,974 
Options closed                           (150,500,000)       (1,742,176) 
Written options 
outstanding at 
end of period                              79,800,000       $ 1,893,798 
</TABLE>

                                       
<PAGE> 
Selected Quarterly Data 
(Unaudited) 
<TABLE>
<CAPTION>
                                                                               Three months ended 
                                              April 30         January 31         October 31          July 31           April 30 
                                                1995              1995               1994              1994               1994 
<S>                                         <C>               <C>                <C>               <C>               <C>
Total investment income 
Total                                       $ 11,456,026      $ 11,570,427       $ 11,693,577      $ 11,598,178      $ 11,884,996 
Per Share+                                  $        .26      $        .26       $        .26      $        .26      $        .27 
Net investment income available to  
  common shareholders 
Total                                       $  8,411,515      $  8,433,043       $  8,924,821      $  8,899,135      $  9,602,081 
Per Share+                                  $        .19      $        .19       $        .20      $        .20      $        .22 
Net realized and unrealized gain (loss) 
  on investments, futures and written 
  options available to common 
  shareholders 
Total                                       $ 10,122,836      $  3,935,848       $(22,814,166)     $    (76,157)     $(40,050,878) 
Per Share+                                  $        .23      $        .08       $       (.51)     $    --           $       (.92) 
Net increase (decrease) in net assets 
  available to common shareholders 
  resulting from operations 
Total                                       $ 18,534,351      $ 12,368,891       $(13,889,345)     $  8,822,978      $(30,448,797) 
Per Share+                                  $        .42      $        .27       $       (.31)     $        .20      $       (.70) 
Net assets available to common 
  shareholders at end of period 
Total                                       $438,022,195      $426,690,031       $421,754,447      $443,326,292      $441,574,763 
Per Share+                                  $       9.80      $       9.57       $       9.49      $       9.99      $       9.98 
</TABLE>

<TABLE>
<CAPTION>
                                                                              Three months ended 
                                             January 31        October 31          July 31          April 30          January 31 
                                                1994              1993              1993              1993               1993 
<S>                                         <C>               <C>               <C>               <C>                <C>
Total investment income 
Total                                       $ 11,953,487      $ 12,131,634      $ 12,114,324      $ 12,113,227       $ 12,176,829 
   
Per Share+                                  $        .27      $        .28      $        .28      $        .28       $        .27 
   
Net investment income available to 
  common shareholders 
Total                                       $  9,411,000      $  9,644,213      $  9,601,179      $  9,772,176       $  9,469,930 
   
Per Share+                                  $        .21      $        .21      $        .22      $        .23       $        .21 
   
Net realized and unrealized gain (loss) 
  on investments, futures and written 
  options available to common 
  shareholders 
Total                                       $  2,572,403      $ 12,792,002      $  8,635,842      $  7,911,957       $ 15,441,312 
   
Per Share+                                  $        .06      $        .30      $        .20      $        .18       $        .36 
   
Net increase (decrease) in net assets 
  available to common shareholders 
  resulting from operations 
Total                                       $ 11,983,403      $ 22,436,215      $ 18,237,021      $ 17,684,133       $ 24,938,242 
   
Per Share+                                  $        .27      $        .51      $        .42      $        .41       $        .57 
   
Net assets available to common 
  shareholders at end of period 
Total                                       $479,160,197      $477,660,049      $462,370,289      $451,177,789       $440,618,960 
   
Per Share+                                  $      10.87      $      10.88      $      10.56      $      10.33       $      10.11 
   
</TABLE>

+Per common share 

                                       
<PAGE> 
Fund information 

INVESTMENT MANAGER 
Putnam Investment 
Management, Inc. 
One Post Office Square 
Boston, MA 02109 

MARKETING SERVICES 
Putnam Mutual Funds Corp. 
One Post Office Square 
Boston, MA 02109 

CUSTODIAN 
Putnam Fiduciary Trust Company 

LEGAL COUNSEL 
Ropes & Gray 

TRUSTEES 
George Putnam, Chairman 
William F. Pounds, Vice Chairman 
Jameson Adkins Baxter 
Hans H. Estin 
John A. Hill 
Elizabeth T. Kennan 
Lawrence J. Lasser 
Robert E. Patterson 
Donald S. Perkins 
George Putnam, III 
Eli Shapiro 
A.J.C. Smith 
W. Nicholas Thorndike 

OFFICERS 
George Putnam 
President 

Charles E. Porter 
Executive Vice President 

Patricia C. Flaherty 
Senior Vice President 


Lawrence J. Lasser 
Vice President 


Gordon H. Silver 
Vice President 

Gary N. Coburn 
Vice President 

James E. Erickson 
Vice President 

Blake E. Anderson 
Vice President 

Howard K. Manning 
Vice President and Fund Manager 

William N. Shiebler 
Vice President 

John R. Verani 
Vice President 

Paul M. O'Neil 
Vice President 

John D. Hughes 
Vice President and Treasurer 


Beverly Marcus 
Clerk and Assistant Treasurer 



                                       
<PAGE> 


Call 1-800-225-1581 weekdays from 9 a.m. to 5 p.m. Eastern Time for 
up-to-date information about the fund's NAV or to request Putnam's quarterly 
Closed-End Fund Commentary. 



                                       
<PAGE> 
[logo] PUTNAM INVESTMENTS 

The Putnam Funds 
One Post Office Square 
Boston, Massachusetts 02109 

18336-052 

Bulk Rate 
U.S. Postage 
PAID 
Putnam 
Investments 

                                    


<PAGE>

APPENDIX TO FORM N-30D FILINGS TO DESCRIBE DIFFERENCES BETWEEN PRINTED
AND EDGAR-FILED TEXTS:

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(2)  Headers (e.g., the name of the fund) are omitted.

(3)  Certain tabular and columnar headings and symbols are displayed 
     differently in this filing.

(4)  Bullet points and similar graphic signals are omitted.

(5)  Page numbering is omitted.

(6)  Trademark symbol replaced with (TM)



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