THORNBURG INVESTMENT TRUST
N-30D, 1997-11-28
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                                    Thornburg
                                  Limited Term
                                   Income Funds
                              INVESTMENT MANAGER
                       Thornburg Management Company, Inc.
                              119 East Marcy Street
                               Santa Fe, NM 87501
                                 (800) 847-0200



                              PRINCIPAL UNDERWRITER
                        Thornburg Securities Corporation
                              119 East Marcy Street
                               Santa Fe, NM 87501
                                 (800) 847-0200
                                  Annual Report
September 30,  1997This  report is submitted for the general  information of the
shareholders  of the Fund. It is not authorized for  distribution to prospective
investors in the Fund unless preceded or accompanied by an effective prospectus,
which  includes  information  regarding  the  Fund's  objectives  and  policies,
experience of its management,  marketability of shares,  and other  information.
Performance  data quoted  represent  past  performance  and do not  guarantee of
future  results.  

<TABLE>
<CAPTION>
                  Thornburg  Limited  Term Income Funds 
                     Thornburg  Limited Term Income Fund


<S>                             <C>               <C>             <C>  
                                 A Shares          C Shares        I Shares

SEC Yield                        5.94%             5.71%           6.42%
NAV                              $12.37            $12.34          $12.36
Max. Offering Price              $12.69            $12.34          $12.36




1 Year                           4.87%             7.13%           7.80%
3 Year                           7.19%             7.70%           NA
Since Inception                                    6.11%           7.24% 9.64%
(Inception Date)                 (10/1/92)         (9/1/94)        (7/5/96)

</TABLE>
<TABLE>


Thornburg Limited Term U.S. Government Fund*


<S>                         <C>             <C>             <C>               
                            A Shares        C Shares        I Shares

SEC Yield                       5.81%             5.51%        6.34%
NAV                           $12.31            $12.37         $12.31
Max. Offering Price           $12.63            $12.37         $12.31



1 Year                        4.22%             6.49%          7.26%
5 Year                        4.66%             NA             NA
Since Inception               6.97%             6.32%          7.91%
(Inception Date)           (11/16/87)         (9/1/94)       (7/5/96)

<FN>
               *Shares are not guaranteed by the U.S. Government.
                 The investment return and principal value of an investment
                   in the funds will fluctuate so that, when redeemed, an
                   investor's shares may be worth more or less than their
                   original cost.
               Maximum sales charge of the Funds' Class A
                            shares is 2.50%.

            The data quoted represent past performance and may not be
construed as a guarantee of future results.
</FN>
</TABLE>

Annual Report for Thornburg Limited Term Income Funds
Contents
Letter to Shareholders                                       3

THORNBURG LIMITED TERM U.S. GOVERNMENT FUND

Statement of Assets and Liabilities                          5
Statement of Operations                                      6
Statements of Change in Net-Assets                           7
Notes to Financial Statements                                9 
Financial Highlights                                        15
Schedule of Investments                                     21

THORNBURG LIMITED TERM INCOME FUND
Statement of Assets and Liabilities                          5
Statement of Operations                                      6
Statements of Change in Net-Assets                           8
Notes to Financial Statements                                9 
Financial Highlights                                        18
Schedule of Investments                                     24

l e t t e r  t o  s h a r e h o l d e r s
119 East Marcy Street, Santa Fe, New Mexico 87501 (_) (505) 984-0200Dear Fellow
 Shareholder:

I am pleased to present the Annual Report for the Thornburg  Limited Term Income
Fund and the  Thornburg  Limited Term U.S.  Government  Fund for the year ending
September 30, 1997. The net asset value of the A shares of the Thornburg Limited
Term Income Fund ended the period at $12.37. If you were invested for the entire
period,  you received  dividends of 75.9 cents per share. If you reinvested your
dividends,  you  received  78.1cents  per  share.  Investors  who owned C shares
received 70.9 and 72.8 cents per share, respectively. The net asset value of the
A shares of the Thornburg Limited Term U.S.  Government Fund ended the period at
$12.31.  If you were invested for the entire period,  you received  dividends of
74.6 cents per share. If you reinvested your dividends,  you received 76.7 cents
per share.  Investors who owned C shares received 69.7 and 71.5 cents per share,
respectively.   Please  read  the   accompanying   exhibits  for  more  detailed
information and history.

The last year has seen some turmoil in the  financial  markets.  Interest  rates
fell in the fourth  quarter of 1996  before  rising  steadily  through the first
quarter of 1997. But the Federal Reserve Board's move to raise interest rates in
March 1997 did not have a lasting  effect on the overall level as interest rates
have been falling since April. A few factors that have supported this market are
that US  interest  rates are  still  generally  higher  than  government  yields
overseas  and,  recently,  there has been some  flight to  quality  as  overseas
investors  purchased US Treasuries to protect  themselves from the falling world
equity  markets.  But it would not  surprise me to see  interest  rates a little
higher next year as the US economy is still  moving  along at a fast clip.  Jobs
are being  created  quite  handily and the US consumer  is  continuing  to spend
money.  It may not be possible to sustain this growth without some  inflationary
pressures  showing up. After all is said and done, Asian economies  slowing down
will not have a  disastrous  effect on the US economy  and the  Federal  Reserve
Board must still look to the US economy when determining policy.

The strong  economy has caused the US equity  markets to continue  their  upward
climb.  While the stock market has fallen from its highs of this  summer,  it is
still close to record levels. The recent shakeup in the Asian equity markets did
not seem to cause US equity  investors  to do much more  than  blink.  But it is
possible  the recent  volatility  in stocks will cause  investors to think about
their  asset  allocation  again.  Now  might be a good time to see  whether  the
outsized gains over the last couple of years has unbalanced the asset allocation
of one's  investment  portfolio.  It might be a little more heavily  weighted in
stocks than intended. It might be time to look at adding more intermediate bonds
to balance out the asset allocation of the portfolio.

The  Thornburg  Limited  Term Income Fund and the  Thornburg  Limited  Term U.S.
Government Fund are laddered  portfolios of  short-to-intermediate  bonds. We do
not  speculate  on the  direction  of  interest  rates.  We keep the  portfolios
laddered  over a time period  ranging from one day to  approximately  ten years,
with the average maturity of the portfolios always no more than five years. Some
of the bonds are  always  coming  close to  maturity,  but never too many at one
time. We feel a laddered maturity portfolio of short-to-intermediate  bonds is a
sensible  strategy  over time.  Intermediate  bonds have proven to be a sensible
part of a portfolio.  They can provide  stability to the  underlying  principal,
they can  provide  income for the  portfolio,  and,  over the  years,  they have
provided an attractive  return versus money market  instruments.  Take a look at
the charts which show the return on an investment in the Thornburg  Limited Term
Income  Fund and the  Thornburg  Limited  Term U.S.  Government  Fund versus the
Donoghue's Money Market Fund average.

Thank you for investing in our funds.  We feel the  Thornburg  Limited Term U.S.
Government  Fund and the  Thornburg  Limited  Term Income  Fund are  appropriate
investments for investors who want a short-to-intermediate bond portfolio. While
future  performance  cannot be guaranteed,  we feel that we are well positioned,
and we will maintain a steady course.




Steven J. Bohlin
Managing Director

<TABLE>
<CAPTION>

s t a t e m e n t s   o f   a s s e t s   a n d   l i a b i l i t i e s
Thornburg Investment Trust
September  30, 1997
<S>                                   <C>                    <C>   
                                         Limited Term            Limited Term
                                        U. S. Government             Income
                                             Fund                    Fund

ASSETS

Investments at value (cost $138,302,402
and $39,043,509, respectively)              $ 140,715,386      $40,121,745
Cash                                              875,260           40,251
Receivable for fund shares sold                   156,041          624,046
Interest receivable                             1,918,683          589,315
Principal receivable                              125,469           26,323
Prepaid expenses and other assets                  23,645           27,563

TOTAL ASSETS                                  143,814,484       41,429,243

LIABILITIES

Payable for fund shares redeemed                  160,819          139,592
Accpayable
and accrued expenses                              175,907           49,325
Dividends payable                                 204,899           82,421

TOTAL LIABILITIES                                 541,625          271,338

NET ASSETS                                  $ 143,272,859      $41,157,905

NET ASSET VALUE:

Class A Shares:
Net asset value and redemption  price per share  ($133,711,460  and  $31,280,742
applicable to 10,858,515 and 2,529,497 shares of
beneficial interest outstanding - Note 4)           $12.31          $12.37

Maximum sales charge, 2.50% of offering
price (2.57% of net asset value per share)             .32             .32

               Maximum Offering Price Per Share     $12.63          $12.69

Class C Shares:
Net asset  value  and  offering  price per  share*  ($4,298,837  and  $5,382,205
applicable to 347,608 and 436,168 shares of beneficial
interest outstanding  - Note 4)                     $12.37          $12.34

Class I Shares:
Net asset  value,  offering  and  redemption  price per  share  ($5,262,562  and
$4,494,958 applicable to 427,500 and 363,536 shares of beneficial
interest outstanding  - Note 4)                     $12.31          $12.36

<FN>
*  Redemption  price per share is equal to net asset  value less any  applicable
contingent deferred sales charges.

See notes to financial statements.
</FN>
</TABLE>

<TABLE>
<CAPTION>

s t a t e m e n t s  o f  o p e r a t i o n s
Thornburg Investment Trust
Year Ended September 30, 1997


<S>                                            <C>                <C> 

INVESTMENT INCOME:
Interest income (net of premium amortized of $329,893 and
$83,092, respectively)                          $9,957,422         $2,437,340
EXPENSES:
Investment advisory fees (Note 3)                  529,056            170,199 
     Administration  fees (Note 3)
     Class A Shares                                170,871             33,817
     Class C Shares                                  4,909              5,702 
     Class I Shares                                    229              1,212
Distribution and service fees (Note 3)
     Class A Shares                                330,420             64,185
     Class C Shares                                 39,289             45,644
Transfer agent fees                                143,684             61,078
Custodian fees                                     108,725             48,165
Registration and filing fees                        50,380             45,293 
Professional fees                                   29,015             10,394
Accounting fees                                     14,839              3,685
Trustee Fees                                         6,268              1,430
Other expenses                                      20,500             11,915

          TOTAL EXPENSES                         1,448,185            502,719

Less:
  Expenses reimbursed by investment 
  adviser (Note 3)                                 (60,426)          (150,728)

          NET EXPENSES                           1,387,759            351,991

          NET INVESTMENT INCOME                  8,569,663          2,085,349

REALIZED AND UNREALIZED GAIN (LOSS) (Note 5)
  Net realized gain on:
     Investments                                   280,414              3,722
     Foreign currency transactions                      -               4,333
                                                   280,414              8,055
  Net unrealized appreciation (depreciation) on:                          
     Investments                                   581,827            368,231
     Foreign currency translation                       -              (4,214)
                                                   581,827            364,017

NET REALIZED AND UNREALIZED  GAIN                  862,241            372,072

          NET INCREASE IN NET ASSETS
             RESULTING FROM OPERATIONS          $9,431,904         $2,457,421
<FN>

See notes to financial statements.
</FN>
</TABLE>

<TABLE>
<CAPTION>
s t a t e m e n t s  o f  c h a n g e s  i n  n e t  a s s e t s
Thornburg Limited Term U. S.  Government Fund


<S>                                  <C>                    <C>  
                                          Year Ended               Year Ended
                                      September 30, 1997     September 30, 1996
INCREASE (DECREASE) IN
NET ASSETS FROM:
                                                                                           
OPERATIONS:
Net investment income                      $8,569,663            $8,845,210    
Net realized gain on investments sold         280,414                72,307
Increase (decrease) in unrealized
        appreciation  of investments          581,827            (1,945,835)
        NET INCREASE IN NET ASSETS
        RESULTING FROM OPERATIONS           9,431,904             6,971,682

DIVIDENDS TO SHAREHOLDERS:
From net investment income
     Class A Shares                        (8,318,540)           (8,688,345)
     Class C Shares                          (222,001)             (156,731)
     Class I  Shares                          (29,122)                 (134)

FUND SHARE TRANSACTIONS - (Note 4):
     Class A Shares                        (6,637,521)           (1,502,761)
     Class C Shares                         1,499,116               600,667
     Class I Shares                         5,249,982                 8,859

NET INCREASE (DECREASE) IN NET ASSETS         973,818            (2,766,763)
NET ASSETS:

     Beginning of year                    142,299,041           145,065,804
     End of year                         $143,272,859          $142,299,041

<FN>

See notes to financial statements.
</FN>
</TABLE>

<TABLE>
<CAPTION>

Thornburg Limited Term Income Fund



<S>                                    <C>                  <C> 
                                             Year Ended           Year Ended
                                         September 30, 1997  September 30, 1996
INCREASE (DECREASE) IN
NET ASSETS FROM:
                                                                                         
OPERATIONS:
Net investment income                        $2,085,349             $1,593,704           
Net realized gain                                 8,055                 89,959
Increase in unrealized appreciation             364,017                143,555
        NET INCREASE IN NET ASSETS
        RESULTING FROM OPERATIONS             2,457,421              1,827,218

DIVIDENDS TO SHAREHOLDERS:
From net investment income:
     Class A Shares                          (1,666,492)            (1,472,722)
     Class C Shares                            (262,811)              (109,230)
     Class I  Shares                           (156,046)               (11,752)

FUND SHARE TRANSACTIONS - (Note 4):
     Class A Shares                           7,539,812                 10,842
     Class C Shares                           2,655,403              1,647,565
     Class I  Shares                          3,665,427                778,309

NET INCREASE IN NET ASSETS                   14,232,714              2,670,230
NET ASSETS:

     Beginning of year                       26,925,191             24,254,961

     End of year                            $41,157,905            $26,925,191

<FN>

See notes to financial statements.
</FN>
</TABLE>

n o t e s  t o  f i n a n c i a l  s t a t e m e n t s

Thornburg Investment Trust
Note 1 - ORGANIZATION

Thornburg  Limited  Term  U.S.  Government  Fund  (the  "Government  Fund")  and
Thornburg  Limited Term Income Fund (the "Income Fund"),  hereafter  referred to
collectively  as the  "Funds",  are series of  Thornburg  Investment  Trust (the
"Trust").  The Trust is  organized  as a  Massachusetts  business  trust under a
Declaration  of Trust  dated June 3, 1987 and is  registered  as a  diversified,
open-end management investment company under the Investment Company Act of 1940,
as amended.  The Trust is currently  issuing five series of shares of beneficial
interest  in  addition  to those of the Funds:  Thornburg  Florida  Intermediate
Municipal Fund,  Thornburg New York Intermediate  Municipal Fund,  Thornburg New
Mexico Intermediate  Municipal Fund, Thornburg  Intermediate  Municipal Fund and
Thornburg  Value Fund.  Each series is  considered  to be a separate  entity for
financial  reporting and tax purposes.  The Funds'  objectives  are to obtain as
high a level  of  current  income  as is  consistent  with the  preservation  of
capital.

The Funds currently offer three classes of shares of beneficial interest,  Class
A, Class C and Institutional  Class (Class I) shares.  Each class of shares of a
Fund  represents an interest in the same  portfolio of  investments of the Fund,
except  that (i) Class A shares are sold  subject to a  front-end  sales  charge
collected  at the time the shares are  purchased  and bear a service  fee,  (ii)
Class C shares are sold at net asset value without a sales charge at the time of
purchase, but are subject to a service fee and a distribution fee, (iii) Class I
shares  are  sold at net  asset  value  without  a sales  charge  at the time of
purchase,   and  (iv)  the  respective   classes  have  different   reinvestment
privileges.  Additionally,  each Fund may  allocate  among its  classes  certain
expenses, to the extent allowable to specific classes,  including transfer agent
fees,  government  registration  fees,  certain  printing and postage costs, and
administrative  and legal expenses.  Currently,  class specific  expenses of the
Funds are limited to distribution fees, administrative fees and certain transfer
agent expenses.

Note 2 - SIGNIFICANT  ACCOUNTING POLICIES Significant accounting policies of the
Funds are as follows:

Valuation of Investments:  In determining net asset value,  the Funds utilize an
independent pricing service approved by the Trustees. Debt investment securities
have a primary market over the counter and are valued on the basis of valuations
furnished  by  the  pricing  service.   The  pricing  service  values  portfolio
securities at quoted bid prices or the yield equivalents when quotations are not
readily available. Securities for which quotations are not readily available are
valued at fair value as  determined  by the pricing  service using methods which
include  consideration of yields or prices of obligations of comparable quality,
type of issue,  coupon,  maturity,  and  rating;  indications  as to value  from
dealers and general  market  conditions.  The valuation  procedures  used by the
pricing service and the portfolio  valuations received by the Funds are reviewed
by the  officers  of the Trust under the general  supervision  of the  Trustees.
Short-term  instruments  having  a  maturity  of 60 days or less are  valued  at
amortized cost, which approximate market value.

Federal  Income  Taxes:  It is the  policy  of the  Funds  to  comply  with  the
provisions of the Internal  Revenue code  applicable  to  "regulated  investment
companies"  and to  distribute  all of their taxable  income,  including any net
realized gain on  investments  to its  shareholders.  Therefore no provision for
federal income taxes is required.




When-Issued  and  Delayed  Delivery  Transactions:   The  Funds  may  engage  in
when-issued or delayed delivery transactions.  To the extent the Funds engage in
such  transactions,  they  will do so for the  purpose  of  acquiring  portfolio
securities  consistent with their investment  objectives and not for the purpose
of investment  leverage or to speculate on interest rate changes.  At the time a
Fund makes a commitment to purchase a security on a when-issued  basis,  it will
record the transaction and reflect the value in determining the Fund's net asset
value.  When  effecting  such  transactions,  assets  of the  Fund of an  amount
sufficient to make payment for the portfolio  securities to be purchased will be
segregated on the Fund's  records at the trade date.  Securities  purchased on a
when-issued or delayed  delivery basis do not earn interest until the settlement
date.

Dividends:  Net investment  income of the Funds are declared daily as a dividend
on shares for which the Funds have received payment.  Dividends are paid monthly
and are  reinvested  in  additional  shares of the Funds at net asset  value per
share  at  the  close  of  business  on the  dividend  payment  date,  or at the
shareholder's  option, paid in cash. Net capital gains, to the extent available,
will be distributed annually.

General:  Securities  transactions  are  accounted  for on a trade  date  basis.
Interest  income is accrued as earned.  Premiums and original issue discounts on
securities  purchased are amortized over the life of the respective  securities.
Realized  gains  and  losses  from the sale of  securities  are  recorded  on an
identified cost basis. The Funds invest in various  mortgage backed  securities.
Such securities pay interest and a portion of principal each month which is then
available for investment in securities at prevailing prices.

Foreign Currency  Transactions:  With respect to the Income Fund, portfolio 
securities and other assets and liabilities  denominated in
foreign  currencies are translated into U.S. dollars based on the rate of 
exchange of such currencies  against U.S. dollars on the date
of valuation.  Purchases and sales of portfolio  securities  and interest  
denominated in foreign  currencies are translated  into U.S.
dollar amounts on the respective dates of such transactions.

The Fund does not isolate  that portion of the results of  operations  resulting
from changes in foreign  exchange  rates on  investments  from the  fluctuations
arising from changes in market prices of securities held. Such  fluctuations are
included with the net realized and unrealized gain or loss from investments.

Reported  net  realized  foreign  exchange  gains or losses  arise from sales of
foreign  currencies,  currency  gains or losses  realized  between the trade and
settlement  dates on  securities  transactions  and the  difference  between the
amount of interest  recorded on the Fund's books, and the U.S. dollar equivalent
of the amounts actually received or paid.

Use of Estimates:  The preparation of financial  statements,  in conformity with
generally accepted accounting principles,  requires management to make estimates
and assumptions  that affect the reported  amounts of assets and liabilities and
the disclosure of contingent assets and liabilities at the date of the financial
statements  and the reported  amounts of increases  and  decreases in net assets
from operations  during the reporting  period.  Actual results could differ from
those estimates.


Note 3 - INVESTMENT ADVISORY FEE AND OTHER TRANSACTIONS WITH AFFILIATES


Pursuant to an investment advisory agreement, Thornburg Management Company, Inc.
(the "Adviser")  serves as the investment  adviser and performs  services to the
Funds for  which the fees are  payable  at the end of each  month.  For the year
ending  September 30, 1997, these fees were payable at annual rates ranging from
three-eighths  of 1% to 11/40  of 1% of the  average  daily  net  assets  of the
Government  Fund and  one-half  of 1% to 11/40 of 1% of the  average  daily  net
assets of the Funds'  depending on the Funds' asset size. The Funds also have an
Administrative  Services  Agreement  with the Adviser,  whereby the Adviser will
perform certain  administrative  services for the  shareholders of each class of
each Fund's  shares,  and for which fees will be payable at an annual rate of up
to 1/8 of 1% of the  average  daily net  assets  attributable  to each  class of
shares.  For  the  year  ended  September  30,  1997,  the  Adviser  voluntarily
reimbursed  certain operating expenses amounting to $60,426 and $150,728 for the
Government Fund and Income Fund, respectively.


The Funds have  underwriting  agreements with Thornburg  Securities  Corporation
(the "Distributor"), which acts as the Distributor of the Funds' shares. For the
year ended September 30, 1997, the Distributor  earned  commissions  aggregating
$18,119 and $18,484 from the sale of Class A shares of the  Government  Fund and
Income Fund,  respectively,  and  collected  contingent  deferred  sales charges
aggregating  $1,793  and  $6,628  from  redemptions  of  Class C  shares  of the
Government Fund and Income Fund, respectively.

Pursuant  to a Service  Plan under Rule 12b-1 of the  Investment  Company Act of
1940,  each Fund may  reimburse to the Adviser an amount not to exceed .25 of 1%
annum of its  average  net  assets  attributable  to each class of shares of the
Funds for payments made by the Adviser to securities dealers and other financial
institutions to obtain various shareholder related services. The Adviser may pay
out of its own funds additional expenses for distribution of each Fund's shares.

The  Funds  have  also  adopted  Distribution  Plans  pursuant  to  Rule  12b-1,
applicable  only to each Fund's Class C shares under which the Funds  compensate
the  Distributor  for  services in  promoting  the sale of Class C shares of the
Funds  at an  annual  rate  of up to  .75%  of  the  average  daily  net  assets
attributable  to Class C shares.  Total fees incurred by each class of shares of
the Funds under their  respective  Service and  Distribution  Plans for the year
ended September 30, 1997, are set forth in the statement of operations.

Certain officers and trustees of the Trust are also officers and/or directors of
the Adviser and Distributor.  The compensation of unaffiliated trustees is borne
by the Trust.

Note 4 - SHARES OF BENEFICIAL INTEREST:

At September  30, 1997,  there were an unlimited  number of shares of beneficial
interest of each Fund authorized,  and capital paid-in  aggregated  $147,784,859
and $40,950,435 for the Government Fund and Income Fund, respectively.  Sales of
Class I shares  commenced on July 5, 1996.  Transactions in shares of beneficial
interest were as follows:
<TABLE>
<CAPTION>

                                              Government Fund
<S>                         <C>          <C>           <C>        <C> 
                                    Year Ended                  Year Ended
                                September 30, 1997          September 30, 1996
                                           
                              Shares       Amount         Shares      Amount
CLASS A SHARES:
Shares sold                  1,686,941 $ 20,681,021    1,926,637 $ 23,786,000
Shares issued to shareholders
in reinvestment of
distributions                  452,793    5,555,737      469,904    5,800,674
Shares repurchased          (2,683,645) (32,874,279)  (2,516,201) (31,089,435)

Net Decrease                  (543,911)($ 6,637,521)    (119,660)($ 1,502,761)


CLASS C SHARES:
Shares sold                    177,985 $  2,194,987      149,217 $  1,847,259
Shares issued to shareholders
in reinvestment of
distributions                   16,438      202,464       10,922      135,261
Shares repurchased             (73,028)    (898,335)    (111,987)  (1,381,853)

Net Increase                   121,395 $  1,499,116       48,152 $    600,667


CLASS I SHARES:
Shares sold                    497,639 $  6,117,666          719 $      8,724
Shares issued to shareholders
in reinvestment of
distributions                    2,385       28,883           11          135
Shares repurchased             (73,254)    (896,567)        --           --

Net Increase                   426,770 $  5,249,982          730 $      8,859

</TABLE>

<TABLE>
<CAPTION>

                                               Income Fund

<S>                        <C>        <C>            <C>        <C>  
                                Year Ended                       Year Ended
                             September 30, 1997             September 30, 1996
                             

                               Shares     Amount         Shares      Amount
CLASS A SHARES:
Shares sold                  1,040,156 $ 12,786,894      434,668 $  5,275,181
Shares issued to shareholders
in reinvestment of
distributions                   77,562      955,709       69,103      838,867
Shares repurchased            (504,413)  (6,202,791)    (505,218)  (6,103,206)

Net Increase (Decrease)        613,305 $  7,539,812       (1,447)$     10,842


CLASS C SHARES:
Shares sold                    352,475 $  4,339,320      167,611 $  2,033,980
Shares issued to shareholders
in reinvestment of
distributions                   19,669      241,703        8,173       98,796
Shares repurchased            (156,885)  (1,925,620)     (40,352)    (485,211)

Net Increase                   215,259 $  2,655,403      135,432 $  1,647,565


CLASS I SHARES:
Shares sold                    301,982 $  3,708,659       64,202 $    766,557
Shares issued to shareholders
in reinvestment of
distributions                    9,788      121,176          969       11,752
Shares repurchased             (13,405)    (164,408)        --           --

Net Increase                   298,365 $  3,665,427       65,171 $    778,309

</TABLE>




                           Note 5 - SECURITIES TRANSACTIONS

For the year ended September 30, 1997,  portfolio purchase and sale transactions
(excluding  short-term  securities)  were  $57,513,645  and  $58,517,675 for the
Government   Fund  and   $17,217,829   and   $4,497,101  for  the  Income  Fund,
respectively.

The cost of  investments  for Federal  income tax purposes is  $138,322,339  and
$39,043,509 for the Government Fund and Income Fund, respectively.  At September
30, 1997, gross unrealized  appreciation and depreciation of investments,  based
on cost for Federal income taxes were as follows:

                               Government Fund         Income Fund

Gross unrealized
    appreciation                  $2,485,279          $1,183,076

Gross unrealized
    depreciation                      92,232             104,840

Net unrealized
    appreciation                  $2,393,047          $1,078,236

Accumulated  net realized losses from securities  transactions  included in net
 assets at September 30, 1997 aggregated  $7,200,711 and
$866,976 for the Government Fund and Income Fund, respectively.

For  Federal  income  tax  purposes,   the  Government  Fund  has  capital  loss
carryforwards  of $6,905,046 as of September 30, 1997 available to offset future
realized  capital  gains.  To the extent that such  carryforwards  are used,  no
capital gains  distributions will be made. The carryforwards  expire as follows:
September 30, 2001 - $11,013,  September 30, 2002 - $4,867,978 and September 30,
2003 - $2,026,055.

For Federal income tax purposes,  the Income Fund has capital loss carryforwards
of $883,302 as of September 30, 1997 available to offset future realized capital
gains.  To the  extent  that such  carryforwards  are  used,  no  capital  gains
distributions will be made. The carryforwards  expire as follows:  September 30,
2002 - $657,324 and September 30, 2003 - $225,978.

f i n a n c i a l   h i g h l i g h t s

<TABLE>

Thornburg Limited Term U. S. Government Fund
<CAPTION>

Per share operating performance
(for a share outstanding
throughout the year)

                                                     Year Ended September 30,
                                                     ------------------------
<S>                                             <C>       <C>        <C>        <C>        <C> 
                                                1997      1996       1995       1994       1993

Class of Shares:                                  A         A         A          A          A

Net asset value, beginning of year             $12.24     $12.40     $12.03     $12.92     $12.83
Income from investment operations:
Net investment income                             .75        .76        .75        .67        .73
Net realized and unrealized
     gain (loss) on investments                   .07       (.16)       .37       (.89)       .09
Total from investment operations                  .82        .60       1.12       (.22)       .82
Less dividends from:
    Net investment income                        (.75)      (.76)      (.75)      (.67)      (.73)
Change in net asset value                         .07       (.16)       .37       (.89)       .09

Net asset value, end of year                   $12.31     $12.24     $12.40     $12.03     $12.92
Total return (a)                               6.86%       4.92%      9.66%     (1.72%)     6.61%

Ratios/Supplemental Data Ratios to average net assets:
     Net investment income                     6.09%       6.11%      6.23%      5.38%      5.61%
     Expenses, after expense reductions         .97%        .99%       .99%       .95%      1.01%
     Expenses, before expense reductions        .97%        .99%       .99%       .95%      1.01%

Portfolio turnover rate                       41.10%      23.27%     28.31%     80.58%     38.88%
Net assets
    at end of year(000)                         $133,711 $139,510   $142,849   $177,439   $201,443

<FN>

(a) Sales loads are not reflected in computing total return.
Note:  From  September  1, 1994 to  September  28, 1995 the Fund issued  Class B
shares, which at the time of their conversion to Class A shares on September 28,
1995 represented less than 1% of the Fund's net assets.
</FN>
</TABLE>

<TABLE>

Thornburg Limited Term U.S. Government Fund
<CAPTION>

Per share operating performance
(for a share outstanding
throughout the year)                                                                          Period from
September 1, (a)
                                                      Year Ended September 30,             to September 30,
<S>                                                 <C>         <C>          <C>                 <C> 
                                                    1997        1996         1995                1994
Class of Shares:                                      C           C           C                    C

Net asset value, beginning of year                 $12.29       $12.45        $12.08            $12.21
Income from investment operations:
Net investment income                                 .70          .71           .69               .06
Net realized and unrealized
    gain (loss) on investments                        .08         (.16)          .37              (.13)
Total from investment operations                      .78          .55          1.06              (.07)
Less distributions from:
    Net investment income                            (.70)        (.71)         (.69)             (.06)
Change in net asset value                             .08         (.16)          .37              (.13)

Net asset value, end of year                       $12.37       $12.29        $12.45            $12.08

Total return (b)                                    6.49%        4.51%        9.07%             (.50%)

Ratios/Supplemental Data Ratios to average net assets:
     Net investment income                          5.65%        5.72%        5.68%             5.45%(c)
     Expenses, after expense reductions             1.40%        1.39%        1.52%             1.63%(c)
     Expenses, before expense reductions            2.24%        2.35%        2.30%             1.63%(c)

Portfolio turnover rate                            41.10%       23.27%       28.31%            80.58%

Net assets at end of year (000)                   $4,299        $2,780        $2,217          $1,005

<FN>
(a) Commencement of operations.
(b) Sales  loads are not  reflected  in  computing  total  return,  which is not
annualized for periods less than one year.
(c)  Annualized
</FN>
</TABLE>
<TABLE>

Thornburg Limited Term U.S. Government Fund

<CAPTION>
Per share operating performance
(for a share outstanding
throughout the year)
                            Year Ended September 30,
<S>                                            <C>             <C> 
                                               1997            1996
Class of Shares:                                 I               I*

Net asset value, beginning of  year           $12.24            $12.14
Income from investment operations:
Net investment income                            .79               .20
Net realized and unrealized
    gain (loss) on investments                   .07               .10
Total from investment operations                 .86               .30
Less distributions from:
    Net investment income                       (.79)             (.20)
Change in net asset value                        .07               .10

Net asset value, end of year                  $12.31            $12.24

Total return (b)                              7.26%              2.45%

Ratios/Supplemental Data Ratios to average net assets:
     Net investment income                    6.35%              6.64%(c)
     Expenses, after expense reductions        .60%               .58%(c)
     Expenses, before expense reductions      6.57%            305.74%(c)

Portfolio turnover rate                      41.10%             23.27%

Net assets at end of year (000)              $5,263               $9

<FN>
(a) Commencement of operations.
(b) Not annualized for periods less than one year.
(c) Annualized.
* Sales of Class I shares commenced on July 5, 1996.
</FN>
</TABLE>

<TABLE>
<CAPTION>
Thornburg Limited Term  Income Fund
 Per share operating performance
(for a share outstanding throughout the year)


                                                              Year Ended September 30,
                                                              ------------------------
<S>                                                <C>          <C>           <C>          <C>        <C> 
                                                   1997         1996          1995         1994       1993
Class of Shares:                                     A            A             A            A         A

Net asset value, beginning of year                $12.23       $12.11        $11.83       $12.55     $12.22
Income from investment operations:
Net investment income                                .76          .76           .76          .67        .77
Net realized and unrealized
    gain (loss) on investments                       .14          .12           .28         (.69)       .33
Total from investment operations                     .90          .88          1.04         (.02)      1.10
Less distributions from:
    Net investment income                           (.76)        (.76)         (.76)        (.67)      (.77)
    Realized capital gain                          --           --            --            (.03)     --
Change in net asset value                            .14          .12           .28         (.72)       .33

Net asset value, end of year                      $12.37       $12.23        $12.11       $11.83     $12.55

Total return (a)                                   7.56%        7.54%        9.22%      (.14%)        9.35%
Ratios/Supplemental Data Ratios to average net assets:
    Net investment income                          6.16%        6.31%        6.50%         5.51%      5.85%
    Expenses, after expense reductions             1.00%         .95%         .83%          .66%       .37%
    Expenses, before expense reductions            1.27%        1.37%        1.48%         1.47%      2.10%

Portfolio turnover rate                           13.87%       44.35%       43.12%        84.35%     93.88%

Net assets at end of year (000)                  $31,281      $23,433       $23,222      $21,683     $20,065

<FN>
(a) Sales loads are not reflected in computing total return.
Note:  From  September 1, 1994 to September 28, 1995 the Fund issued 
class B Shares,  which at the time of their  conversion to Class A
shares on September 28, 1995 represented less than 1% of the Fund's net assets.
</FN>
</TABLE>
<TABLE>

Thornburg Limited Term Income Fund

<CAPTION>
Per share operating performance
(for a share outstanding
throughout the year)                                                                          Period from
September 1, (a)
                                                       Year Ended September 30,            to September 30,
<S>                                                 <C>          <C>          <C>                <C> 
                                                    1997         1996         1995               1994
Class of Shares:                                      C            C           C                   C

Net asset value, beginning of year                 $12.20       $12.08        $11.78            $11.92
Income from investment operations:
Net investment income                                 .71          .71           .70               .06
Net realized and unrealized
    gain (loss) on investments                        .14          .12           .30              (.14)
Total from investment operations                      .85          .83          1.00              (.08)
Less distributions from:
    Net investment income                            (.71)        (.71)         (.70)             (.06)
Change in net asset value                             .14          .12           .30              (.14)

Net asset value, end of year                       $12.34       $12.20        $12.08            $11.78

Total return (b)                                    7.13%        7.12%         8.87%            (.72%)

Ratios/Supplemental Data Ratios to average net assets:
     Net investment income                          5.76%        5.91%         6.03%            5.14%(c)
     Expenses, after expense reductions             1.40%        1.36%         1.36%            1.20%(c)
     Expenses, before expense reductions            2.44%        3.20%         4.75%            1.20%(c)

Portfolio turnover rate                            13.87%       44.35%        43.12%           84.35%

Net assets at end of year (000)                    $5,382        $2,695        $1,032           $53

<FN>
(a) Commencement of operations.
(b) Sales loads are not reflected in computing total return, which is not annualized for periods less than one year.
(c) Annualized.
</FN>
</TABLE>
<TABLE>

Thornburg Limited Term Income Fund

<CAPTION>
Per share operating performance
(for a share outstanding
throughout the year)
                                               Year Ended September 30,

<S>                                            <C>              <C> 
                                               1997             1996
Class of Shares:                                 I               I*

Net asset value, beginning of year            $12.23            $11.95
Income from investment operations:
Net investment income                            .80               .19
Net realized and unrealized
    gain (loss) on investments                   .13               .28
Total from investment operations                 .93               .47
Less distributions from:
    Net investment income                       (.80)             (.19)
Change in net asset value                        .13               .28

Net asset value, end of year                  $12.36            $12.23

Total return (b)                              7.80%              3.97%

Ratios/Supplemental Data Ratios to average net assets:
     Net investment income                    6.44%              6.67%(c)
     Expenses, after expense reductions        .69%               .69%(c)
     Expenses, before expense reductions      1.98%              4.26%(c)

Portfolio turnover rate                      13.87%             44.35%

Net assets at end of year (000)                $4,495              $797

<FN>
(a) Commencement of operations.
(b) Not annualized for periods less than one year.
Sales of Class I shares commenced on July 5, 1996.
</FN>
</TABLE>
<TABLE>

s c h e d u l e   o f   i n v e s t m e n t s
<CAPTION>
Thornburg Limited Term U. S. Government Fund
September 30, 1997 CUSIPS: Class A - 885-215-103, Class C - 885-215-830, Class I
  - 885-215-699  NASDAQ  Symbols:  Class A - LTUSX,  Class C -LTUCX  (Proposed),
  Class I - LTUIX (Proposed)
<S>             <C>                                                                                        <C>  
 Principal      Security Name                                                                            Value
                U.S. Government Agencies (52.70%)
   $38,496      Bear Stearns Secured Investors Trust, Collateralized Mortgage Obligation
                Series 1, Class D, 9.00% due 6/1/17                                                    $38,315
   207,753      Collateralized Mortgage Security Corp. Series 1989-2, Class F, 9.30% due 2/25/19       208,532
    80,437      Federal Home Loan Mortgage Corporation, Pool# M30002, 9.00% due 11/1/05                 81,241
 4,096,850      Federal Home Loan Mortgage Corporation, Pool# M80406, 7.00% due 1/1/03               4,137,367
   325,056      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 150, Class E, 9.00% due 1/15/06                                                 327,901
 4,100,000      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 1143, Class VC, 7.50% due 9/15/00                                             4,132,021
 5,000,000      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 1216, Class E, 7.00% due 3/15/05                                              5,064,050
 1,962,915      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 1330, Class E, 7.00% due 9/15/99                                               1989,905
 1,397,328      Federal Home Loan Mortgage Corporation, Pool# E00107, 8.00% due 7/1/07               1,443,104
 5,000,000      Federal Home Loan Bank Board, 6.055% due 7/28/00                                     5,003,900
 1,000,000      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 1586, Class FA, 5.64% (adjustable rate) due 8/15/07                           1,004,060
 2,000,000      Federal Farm Credit Bank Medium Term Note, 7.95% due 1/2/98                          2,011,560
 1,000,000      Federal Home Loan Bank, 7.95%  due 10/1/01                                           1,000,000
 2,100,000      Federal Home Loan Bank Board, 7.11% due 8/19/99                                      2,128,875
 2,265,000      Federal Home Loan Bank Board, 6.50% due 11/29/05                                     2,286,223
   757,208      Federal Home Loan Mortgage Corporation, Pool# 141016, 9.25% due 11/1/16                813,461
   126,552      Federal Home Loan Mortgage Corporation, Pool# 180367, 10.00% due 11/1/10               138,096
   428,593      Federal Home Loan Mortgage Corporation, Pool# 181730, 8.50% due 5/1/08                 446,950
   256,872      Federal Home Loan Mortgage Corporation, Collateralized Mortgage Obligation
                Series 59, Class D, 9.70% due 1/15/16                                                  257,673
   272,943      Federal Home Loan Mortgage Corporation, Pool# 160043, 8.75% due 4/1/08                 286,464
   530,485      Federal Home Loan Mortgage Corporation, Pool# 200075, 9.00% due 9/1/04                 554,378
   155,207      Federal Home Loan Mortgage Corporation, Pool# 250714, 9.75% due 5/1/10                 166,288
    17,461      Federal Home Loan Mortgage Corporation, Pool# 250936, 10.50% due 8/1/99                 18,661
   201,248      Federal Home Loan Mortgage Corporation, Pool# 252986, 10.75% due 4/1/10                222,259
    61,816      Federal Home Loan Mortgage Corporation, Pool# 256111, 10.75% due 8/1/00                 66,165
   302,914      Federal Home Loan Mortgage Corporation, Pool# 256764, 8.75% due 10/1/14                317,921
   293,233      Federal Home Loan Mortgage Corporation, Pool# 213924, 9.00% due 10/1/01                304,531
   582,796      Federal Home Loan Mortgage Corporation, Pool# 216502, 8.00% due 4/1/02                 589,399
   303,227      Federal Home Loan Mortgage Corporation, Pool# 260486, 9.00% due 1/1/10                 322,436
   241,339      Federal Home Loan Mortgage Corporation, Pool# 770297, 6.50% 
                (adjustable rate) due 6/1/18                                                           240,363
    15,564      Federal Home Loan Mortgage Corporation, Pool# 220001, 10.75% due 7/1/00                 16,395
   189,151      Federal Home Loan Mortgage Corporation, Pool# 220010, 8.75% due 8/1/01                 199,377
   205,944      Federal Home Loan Mortgage Corporation, Pool# 276638, 9.25% due 8/1/16                 221,291
   254,491      Federal Home Loan Mortgage Corporation, Pool# 279611, 9.25% due 10/1/16                271,733
    88,346      Federal Home Loan Mortgage Corporation, Pool# 431035, 11.50% due 7/1/10                 97,452
   244,933      Federal Home Loan Mortgage Corporation, Pool# 294817, 9.75% due 1/1/17                 266,230
   122,544      Federal Home Loan Mortgage Corporation, Pool# 298107, 10.25% due 8/1/17                135,267
   108,404      Federal Home Loan Mortgage Corporation, Pool# 500166, 12.00% due 9/1/00                116,399
 2,000,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1991-134, Class KE, 7.00% due 5/25/08                                         1,975,000
   850,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1992-22, Class HC, 7.00% due 3/25/07                                            863,277
 1,250,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1992-33, Class F, 5.69% (adjustable rate) due 3/25/22                         1,278,513
 1,536,524      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1992-60, Class C, 7.50% due 4/25/99                                           1,555,730
   792,074      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 62, Class E, 7.00% due 5/25/99                                                  795,780
 1,150,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1992-145, Class L, 7.50% due 1/25/06                                          1,168,688
 1,000,000      Federal National Mortgage Association,Collateralized Mortgage Obligation
                Series 1992-64, Class G, 7.00% due 12/25/18                                          1,008,120
 1,900,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1993-12, Class EC, 7.50% due 9/25/01                                          1,923,142
   500,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1993-185, Class FJ, 5.62% (adjustable rate) due 9/25/22                         508,125
 1,800,000      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1993-187, Class FC, 5.62% (adjustable rate) due 11/25/21                      1,832,616
 1,500,000      Federal National Mortgage Association, 6.50% due 11/25/06                            1,482,645
    45,514      Federal National Mortgage Association, Pool# 02473, 10.50% due 1/1/01                   47,241
   988,963      Federal National Mortgage Association, Pool# 08307, 8.00% due 5/1/08                 1,022,765
    90,676      Federal National Mortgage Association, Pool# 10294, 8.50% due 9/1/07                    93,134
     7,861      Federal National Mortgage Association, Pool# 16072, 11.50% due 5/1/00                    8,227
   226,762      Federal National Mortgage Association, Pool# 19535, 10.25% due 7/1/08                  247,953
    42,949      Federal National Mortgage Association, Collateralized Mortgage Obligation
                Series 1989-2, Class C, 8.80% due 4/25/17                                               42,842
 1,486,794      Federal National Mortgage Association, Pool# 33356, 9.25% due 8/1/16                 1,605,902
   114,574      Federal National Mortgage Association, Pool# 38493, 8.75% due 10/1/08                  120,549
   190,101      Federal National Mortgage Association, Pool# 40526, 9.25% due 1/1/17                   205,113
 1,142,603      Federal National Mortgage Association, Pool# 44003, 8.00% due 6/1/17                 1,190,809
    55,672      Federal National Mortgage Association, Pool# 50409, 9.00% due 2/1/98                    55,867
   423,792      Federal National Mortgage Association, Pool# 58816, 9.25% due 12/1/02                  441,210
   500,197      Federal National Mortgage Association, Pool# 63791, 8.25% due 7/01/02                  510,391
   819,289      Federal National Mortgage Association, Pool# 64011, 9.25% due 7/1/03                   852,962
 5,000,000      Federal National Mortgage Association, Pool# 73040, 7.625% due 9/1/01                5,100,000
   851,194      Federal National Mortgage Association, Pool# 76388, 9.25% due 9/1/18                   920,345
   182,793      Federal National Mortgage Association, Pool# 77725, 9.75% due 10/1/18                  198,170
   375,000      Federal National Mortgage Association, Medium Term Note, 6.05% due 6/30/03             371,835
   607,530      Federal National Mortgage Association, Pool# 112067, 9.50% due 10/1/16                 657,262
 1,760,196      Federal National Mortgage Association, Pool# 156156, 8.50% due 4/1/21                1,852,958
   886,600      Federal National Mortgage Association, Pool# 345775, 8.50% due 12/1/24                 933,323
   328,733      Federal Home Loan Mortgage Corporation, Pool# D06907, 9.00% due 4/1/17                 349,374
   180,805      Federal Home Loan Mortgage Corporation, Pool# D06908, 9.50% due 9/1/17                 194,422
 1,006,181      Government National Mortgage Association, GNMA II Pool# 623, 8.00% due 9/20/16       1,053,120
   110,091      Government National Mortgage Association, GNMA II Pool# 862, 9.00% due 10/20/02        113,920
    26,204      Government National Mortgage Association, GNMA II Pool# 956, 10.00% due 3/20/03         27,866
    44,179      Government National Mortgage Association, GNMA II Pool# 1228, 10.00% due 7/20/04        46,981
   144,203      Government National Mortgage Association, GNMA II Pool# 1408,  9.50% due 5/20/05       151,894
 1,110,346      Government National Mortgage Association, Pool# 362865, 8.00% due 7/15/03            1,135,329
 1,208,389      Government National Mortgage Association, Pool#016944, 7.50% due 5/15/07             1,241,233
 1,235,724      Government National Mortgage Association, Pool# 19832 Project Loan, 8.25% 
                due 7/15/05                                                                          1,277,430
    74,074      Government National Mortgage Association, Pool# 35861, 10.875% due 2/15/10              82,735
 1,006,010      Government National Mortgage Association, Pool # 453928, 7.00% due 7/15/17           1,016,071
    19,675      Government National Mortgage Association, GNMA II Pool# 112262,
                11.50% due 2/20/99                                                                      20,788
    33,563      Government National Mortgage Association, Pool# 161848, 9.00% due 8/15/01               34,629
   108,623      Government National Mortgage Association, Pool# 276712, 11.00% due 3/15/00             114,291
   363,555      Government National Mortgage Association, Pool# 296697, 9.50% due 10/15/05             386,277
   476,310      Government National Mortgage Association, Pool# 306636, 8.25% due 12/15/06             490,003
    83,326      Small Business Administration Series 1988-10B, 9.80% due 6/01/98                        84,776
   800,000      Tennessee Valley Authority, 8.375% due 10/01/99                                        835,872
 1,000,000      Tennessee Valley Authority, 7.45% due 10/15/01                                       1,026,090

                Total U.S. Government Agencies (Cost $75,924,669)                                   77,479,838

                United States Treasury (47.30%)
 1,500,000      United States Treasury Notes, 7.875% due 4/15/98                                     1,518,510
 5,000,000      United States Treasury Notes, 8.25% due 7/15/98                                      5,100,800
10,000,000      United States Treasury Notes, 7.50% due 11/15/01                                    10,539,100
 1,200,000      United States Treasury Notes, 6.25% due 2/15/03                                      1,211,436
 5,000,000      United States Treasury Notes, 5.75 due 8/15/03                                       4,922,650
 9,750,000      United States Treasury Notes, 7.25 due 5/15/04                                      10,353,232
 5,200,000      United States Treasury Notes, 7.25% due 8/15/04                                      5,528,224
 7,850,000      United States Treasury Notes, 6.875% due 8/31/99                                     7,998,444
 5,000,000      United States Treasury Notes, 7.50% due 10/31/99                                     5,160,150
 1,300,000      United States Treasury Notes, 7.75% due 1/31/00                                      1,352,611
 1,400,000      United States Treasury Notes, 6.50% due 5/15/05                                      1,429,750
 5,000,000      United States Treasury Notes, 6.25% due 4/30/01                                      5,044,550
 1,000,000      United States Treasury Notes, 7.875% due 1/15/98                                     1,007,190
 2,050,000      United States Treasury Notes, 6.25% due 1/31/02                                      2,068,901

                Total United States Treasury (Cost $62,377,733)                                     63,235,548

                TOTAL INVESTMENTS  (100%) (Cost $138,302,402)                                     $140,715,386
<FN>

                See notes to financial statements.
</FN>
</TABLE>
<TABLE>

<CAPTION>
Thornburg Limited Term Income Fund
September 30, 1997 CUSIPS: Class A - 885-215-509,  Class C - 885-215-764 , Class
I - 885-215-681  NASDAQ Symbols:  Class A - THIFX,  Class C - THICX  (Proposed),
Class I - THIIX (Proposed)
<S>             <C>                                                                      <C>         <C>    
                                                                                      Credit  Rating+
  Principal*    Security Name                                                         Moody's/S&P      Value

U.S. GOVERNMENT SECURITIES - 15.39%
   $750,000     United States Treasury Notes, 8.00% due 5/15/01                           Aaa/AAA    $799,215
    250,000     United States Treasury Notes, 6.375% due 1/15/99                          Aaa/AAA     251,915
    500,000     United States Treasury Notes, 6.375%  due 8/15/02                         Aaa/AAA     507,655
    500,000     United States Treasury Notes, 6.25% due 2/15/03                           Aaa/AAA     504,765
    600,000     United States Treasury Notes, 4.75% due 10/31/98                          Aaa/AAA     594,000
  2,350,000     United States Treasury Notes, 6.875% due 8/31/99                          Aaa/AAA   2,394,439
  1,100,000     United States Treasury Notes, 6.50% due 5/15/05                           Aaa/AAA   1,123,375

                Total U. S. Government Securities (Cost $6,049,790)                                 6,175,364

U.S. GOVERNMENT AGENCIES - 22.22%
    623,894     Federal Home Loan Mortgage Corp, Seven Year Balloon Pool # N93035, 
                7.00% due 1/1/00                                                          Aaa/AAA     629,566
    316,683     Federal Home Loan Mortgage Corp., CMO Series 1019 Class E, 8.75% 
                due 7/15/20                                                               Aaa/AAA     327,766
     72,143     Federal Home Loan Mortgage Corp., CMO Series 1060 Class F, 7.25% 
                due 2/15/01                                                               Aaa/AAA      72,323
    500,000     Federal Home Loan Mortgage Corp., CMO Series 1208 Class D, 5.89% 
                due 2/15/22                                                               Aaa/AAA     507,810
    500,000     Federal Home Loan Mortgage Corp., CMO Series 1327 E, 7.50% due 7/15/07    Aaa/AAA     509,060
    250,000     Hederal Home Loan Mortgage Corp, CMO Series 1537 B, 5.60% due 6/15/00     Aaa/AAA     247,155
    900,000     Federal Home Loan Bank Board, 7.11% due 8/19/99                           Aaa/AAA     912,375
     86,320     Federal Home Loan Mortgage Corp., Pool #141540, 9.00% due 5/1/09          Aaa/AAA      91,788
     62,260     Federal Home Loan Mortgage Corp., , 9.00% due 4/15/20                     Aaa/AAA      63,136
    299,751     Federal Home Loan Mortgage Corp., #214180, 9.75% due 11/1/01              Aaa/AAA     315,174
     82,636     Federal Home Loan Mortgage Corp., Pool #216639, 8.25% due 4/1/02          Aaa/AAA      83,480
     20,771     Federal Home Loan Mortgage Corp., Pool #220005, 8.75% due 4/1/01          Aaa/AAA      21,894
      5,916     Federal Home Loan Mortgage Corp., Pool #296006, 8.00% due 6/1/17          Aaa/AAA       6,183
    113,484     Federal Home Loan Mortgage Corp., Pool #503253, 9.50% due 7/1/05          Aaa/AAA     121,003
    457,223     Federal Home Loan Mortgage Corp., Pool #850082, 9.00% due 10/1/05         Aaa/AAA     480,798
    810,167     Federal National Mortgage Association, CMO Series 92-60 C, 7.50% due 4/25/99Aaa/AAA   820,294
    131,112     Federal National Mortgage Association, CMO Series 92-150 G, 6.75% due 9/25/18Aaa/AAA  130,865
    600,000     Federal National Mortgage Association, CMO Series G94-7 B, 7.50% due 5/17/24Aaa/AAA   626,436
  1,000,000     Federal National Mortgage Association, REMIC Trust, 6.718% due 12/25/11   Aaa/AAA     999,168
     60,791     Federal National Mortgage Association, Pool #1768, 8.00% due 10/1/06      Aaa/AAA      62,374
    728,481     Federal National Mortgage Association, Pool #20155, 7.491% due 8/1/14     Aaa/AAA     729,508
     25,939     Federal National Mortgage Association, Pool #103348, 9.00% due 10/1/97    Aaa/AAA      26,030
    723,663     Federal National Mortgage Association, Pool # 297033, 8.00% due 12/1/09   Aaa/AAA     750,120
    301,629     Government National Mortgage Association, Pool #827148, 6.50% due 2/20/24 Aaa/AAA     308,322
     69,688     Government National Mortgage Association, Pool #305541, 9.00% due 5/15/03 Aaa/AAA      73,173

                Total U. S. Government Agencies (Cost $8,777,763)                                   8,915,801

MORTGAGE BACKED  SECURITIES - 1.34%
     43,113     Collateralized Mortgage Obligation Trust, Series 56-B, 9.985% due 1/1/19  Aaa/AAA      47,586
    500,000     GE Capital Mortgage Services, Series 92-13 G2, 7.00% due 1/1/08           Aaa/AAA     490,845

                Total Mortgage Backed Securities (Cost $534,661)                                      538,431

CORPORATE BONDS - 5.45%
                FINANCIAL
    500,000     Transamerica Financial Corporation Series MTNC SUB, 6.06% due 6/15/98        A3/A     499,650

                HEALTH SERVICES
    500,000     Waukesha Health Systems, Incorporated, 5.65% due 8/15/26, put 10/07/97
                (weekly demand notes) (LOC: Bank of America)                            Aa3/VMIG1     500,000

                REAL ESTATE
    181,125     Equitable Lord Realty Corporation, 10.50% due 12/30/97 
                (Debt assumed by Equitable Life)A2/AA-      182,776

                UTILITIES
  1,000,000     Carolina Power & Light, 6.80% due 8/15/07                                    A2/A   1,004,611

                Total Corporate Bonds (Cost $2,180,737)                                             2,187,037

TAXABLE MUNICIPAL BONDS - 33.48%
  1,500,000     Austin Texas General Obligation, 6.90% due 3/1/02                          Aa2/AA   1,534,260
    285,000     Baltimore Economic Development Authority, 8.50% due 8/1/02 
                (Arcade LP Project)                                                        A/BBB+     302,240
     80,000     Beaumont Housing Multifamily Mortgage Series 1995-B, 7.50% due 6/15/00 
                (Insured: FHA)                                                             Aaa/NR      81,648
  1,025,000     Connecticut St. Development Authority, 8.55% due 8/15/05                    NR/A+   1,136,151
    905,000     Cook County Township HS District # 205 Series 1995-B, 8.30% due 12/1/97 
                (Insured: FGIC)                                                           Aaa/AAA     909,498
    510,000     Dauphin County Pennsylvania General Authority Health Center, 7.25% 
                due 9/1/10                                                                  NR/NR     510,204
    115,000     Duquesne Pennsylvania General Obligation, 6.75 due 12/15/01 (Insured: MBIA)NR/AAA     115,722
    125,000     Duquesne Pennsylvania General Obligation, 6.75 due 12/15/02 (Insured: MBIA)NR/AAA     125,799
    130,000     Duquesne Pennsylvania General Obligation, 6.95 due 12/15/03 (Insured: MBIA)NR/AAA     130,955
    175,000     Gardena Financing Agency Lease, 6.50% due 7/1/98 
                (Municipal Mutual Insurance Project)                                      NR/BBB      175,999
  1,000,000     Greater Valley Medical Building Partnership, Seriies 1996, 6.95% due 3/1/21,
                put 3/1/01 (LOC: Krediet Bank)                                             Aa2/AA   1,000,500
    845,000     Idaho Housing Multifamily Housing Revenue Series 94-B, 8.15% due 7/1/04      A/NR     908,130
    405,000     King County Washington General Obligation, 7.55% due 12/01/05             Aa1/AA+     423,743
    100,000     Kiryas Joel Village, New York General Obligation Series B, 8.50% due 1/1/00Baa/NR     103,987
  1,000,000     Los Angeles County Pension Obligation, 8.30% due 6/30/02 (Insured: FSA)   Aaa/AAA   1,074,500
    870,000     Maine Health & Higher Ed Fac Series A, 7.35% due 7/1/12
                (Nursing Home Project; LOC: Sumitumo Bank)                                   NR/A     879,474
    300,000     Massachusetts Industrial Financing Authority Resource Recovery Revenue
                Refunding, 6.95% due 7/1/99 (Insured: FSA)                                Aaa/AAA     304,029
    415,000     Miami Beach Housing Authority Revenue, 6.75% due 3/1/03                     A3/NR     415,415
    305,000     New Jersey Economic Development Authority Series B, 7.10% due 9/15/02       A1/A+     312,640
     50,000     New Jersey State Housing & Mortgage Financing Agency Series E, 7.40% 
                due 11/1/98                                                                 NR/A+      50,434
     95,000     New Jersey State Housing & Mortgage Financing Agency Series E, 7.95% 
                due 11/1/00                                                                 NR/A+      97,987
  6,700,000     New Orleans Home Mortgage Authority Single Family Mortgage Revenue Refunding
                Series 1994-A, 0% due 10/1/15 (Insured: MBIA)                             Aaa/AAA   1,382,210
    100,000     New York City Series D, 10.00% due 8/1/05                               Baa1/BBB+     113,863
    200,000     New York City Series 1991, 10.50% due 11/15/13                            Aaa/AAA     232,770
  1,000,000     Pennsylvania Housing Finance Agency, 8.40% due 4/1/10                      Aa/AA+   1,064,790
     45,000     Tucson & Pima County IDA SFMR Series A, 7.00% due 12/1/03                   A1/NR      45,345

                Total Taxable Municipal Bonds (Cost $13,047,763)                                   13,432,293
                                                                                          

FOREIGN SECURITIES - 19.13%
  2,000,000     British Columbia Province, 9.00% due 6/21/04 (Canadian Dollars)           Aa1/AA+   1,718,751
  1,000,000     Irish Government, 8.00% due 8/18/06 (Irish Punts)                           A1/NR   1,654,698
  1,000,000     Manitoba Province, 7.875% due 4/7/03 (Canadian Dollars)                     A1/NR     806,830
  1,500,000     New Zealand Government,8.00% due 4/15/04 (New Zealand Dollars)            Aaa/AAA   1,026,706
  1,400,000     New Zealand Government,10.00% due 3/15/02 (New Zealand Dollars)            Aaa/NR   1,008,466
  1,800,000     Toronto Metropolitan, 7.75% due 12/1/05 (Canadian Dollars)                  A1/NR   1,458,298

                Total Foreign Securities (Cost $7,253,725)                                          7,673,749

COMMERCIAL PAPER - 2.99%
    900,000     Ford Motor Credit, 5.57% due 10/7/97                                                  899,164
    300,000     Merrill Lynch, 5.65% due 10/3/97                                                      299,906

                Total Commercial Paper (Cost  $1,199,070)                                           1,199,070

<FN>
                Total Investments (100%) (Cost $39,043,509)                                       $40,121,745
                +Credit ratings are unauduted.
                  See notes to financial statements.
                * Principal amount in U.S. Dollars unless otherwise indicated, value is in U.S. dollars
</FN>
</TABLE>


               i n d e p e n d e n t a u d i t o r ' s r e p o r t
To the Board of Trustees and Shareholders
Thornburg Investment Trust
Santa Fe, New Mexico


We have audited the accompanying statement of assets and liabilities,  including
the schedule of investments,  of Thornburg Limited Term U.S. Government Fund and
Thornburg Limited Term Income Fund,  series of Thornburg  Investment Trust as of
September  30, 1997;  the related  statement  of  operations,  the  statement of
changes in net assets,  and the financial  highlights for the periods indicated.
These financial  statements and financial  highlights are the  responsibility of
the  Funds'management.  Our  responsibility  is to  express  an opinion on these
financial statements and financial highlights based on our audit.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  Our  procedures  included  confirmation  of securities  owned as of
September 30, 1997, by correspondence  with the custodian and brokers.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above  present  fairly,  in all material  respects,  the  financial  position of
Thornburg  Limited Term U.S.  Government Fund and Thornburg  Limited Term Income
Fund as of September 30, 1997,  the results of their net assets,  the changes in
their net assets and the  financial  highlights  for the periods  indicated,  in
conformity with generally accepted accounting principles.




New York, New York
October 24, 1997
Thornburg Limited Term U.S. Government Fund
Outperformed Taxable Money Market Funds




Return for the money fund  average  is based  upon 30 day yield  quotations  for
taxable money funds as quoted in  "Donoghue's  Money Fund Report" for the months
covered by this analysis.  The return for Limited Term U.S.  Government Fund and
the Limited  Term Income  Fund is based upon the  dividends  paid for the months
covered by this analysis,  the beginning offering price of $12.44 and $12.44 per
share,  respectively  and  the  ending  NAV at  $12.31  and  $12.37  per  share,
respectively.  These  investments  returned the $100,000  initial  investment in
addition to the amounts shown above.  This  analysis  assumes that the dividends
from each of these investment  vehicles were reinvested and compounded  monthly.
Most  money  funds  declare  dividends  daily and pay them  monthly.  LTUSX also
declares dividends daily and pays them monthly.

The average  money market fund  increases  shown may differ from the return of a
particular fund. It is not possible to invest in these money fund averages.

Note 1: Future  performance of any of these investments may bear no relationship
to prior  performance.  Return  quotations for the money fund averages are based
upon 30 day yield quotations for taxable and tax exempt money funds as quoted in
"Donoghue's Money Fund Report" for the months covered by this analysis.  Note 2:
This  analysis does not take into account the effect,  if any,  caused by taxes.
Note 3: The net asset  value of the money funds did not  fluctuate.  Money funds
seek to maintain a constant  net asset  value.  The net asset value of LTUSX did
vary from time to time, and it will continue to vary in the future. The analysis
assumes that the investor  receives net asset value of share owned, plus accrued
income, at redemption.  Due to the effect of sales commissions,  net asset value
of the Limited  Term U.S.  Government,  and Income Fund shares are less than the
offering price of the shares. Redemptions are made at the then current net asset
value and you may have a gain or a loss  when you  redeem  shares.  Note 4: This
analysis assumes that the dividends from each of these  investment  vehicles are
reinvested and compounded monthly.  Most money funds declare dividends daily and
pay them  monthly.  Limited Term U.S.  Government , and Income Fund also declare
dividends daily and pay them monthly. Note 5: See the inside front cover of this
report for the 30 day SEC yield and the total  returns at the  maximum  offering
price for one year, five years, and since inception of the fund.





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