THORNBURG INVESTMENT TRUST
N-30D, 2000-11-29
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Thornburg Limited Term Income Funds
All data as of 9.30.00
Thornburg Limited Term Income Fund
                                            A Shares          C Shares
SEC Yield ............................        6.09%             5.79%
NAV ..................................   $   11.89 $           11.87
Max. Offering Price ..................   $   12.07 $           11.87

(Annual Average - After Subtracting Maximum Sales Charge)

One Year ............................         4.46%             5.62%
Five Year ...........................         5.50%             5.41%
Since Inception .....................         5.70%             5.77%
Inception Date                             (10.1.1992)        (9.1.1994)

Thornburg Limited Term U.S. Government Fund*
                                            A Shares          C Shares
SEC Yield ...........................         5.62%             5.26%
NAV .................................    $   12.03         $   12.10
Max. Offering Price .................    $   12.21         $   12.10

(Annual Average - After Subtracting Maximum Sales Charge)
One Year  .................................   4.03%             5.23%
Five Year .................................   4.96%             4.87%
Ten Year  .................................   6.19%              N/A
Since Inception ...........................   6.56%             5.39%
Inception Date                             (11.16.1987)       (9.1.1994)

*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
1.50%.
The  data  quoted  represent  past  performance  and may not be  construed  as a
guarantee of future results.

Letter to shareholders
Dear 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 ended
September 30, 2000. The net asset value of an "A" share of the Thornburg Limited
Term Income Fund ended the period at $11.89. If you were invested for the entire
period,  you received  dividends of 73.3 cents per share. If you reinvested your
dividends,  you received  75.4 cents per share.  Investors  who owned "C" shares
received 68.3 and 70.2 cents per share, respectively.  The net asset value of an
"A" share of the Thornburg Limited Term U.S. Government Fund ended the period at
$12.03.  If you were invested for the entire period,  you received  dividends of
67.7 cents per share. If you reinvested your dividends,  you received 69.5 cents
per  share.  Investors  who owned "C"  shares  received  63.1 and 64.6 cents per
share,  respectively.  Please read the  accompanying  exhibits for more detailed
information and history.

It has been a tumultuous  market.  The Federal  Reserve Board continued to raise
interest rates. The economic data have shown a very resilient U.S.  Consumer who
is still buying  automobiles and houses.  The U.S. Treasury yield curve inverted
(short rates higher than long rates).  And,  spread products  (corporate  bonds,
mortgages,  etc.) have lost ground to the treasury curve as quality spreads have
widened  to  levels  we  haven't  seen in a  decade.  Good  quality  bonds  have
attractive yields available now.

An inverted yield curve has often been a precursor to a recession. Economists do
not expect this.  Most  economists are now expecting a soft landing like the one
experienced  in  1994-1995.  A few more months of data should prove this out one
way or the other.  Economists  are also  expecting the Federal  Reserve Board to
start  lowering  rates  sometime in 2001. If this is true,  then short  interest
rates  should be dropping  soon,  as the bond  market  tends to lead the Federal
Reserve Board on the direction of interest  rates. As the yield curve moves to a
positive slope (short rates lower than long rates),  the best performing  sector
of the yield curve should be the short-to-intermediate sector, as interest rates
on shorter maturities tend to drop further than longer maturities when the yield
curve steepens after an inversion.

Regardless  of the direction of interest  rates,  we believe your funds are well
positioned.  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
Money Market Funds 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

Statements of assets and liabilities
                                              Limited Term U.S.    Limited Term
                                               Government Fund     Income Fund
ASSETS
Investments at value (cost $96,806,225
and $49,339,160, respectively)                        96,682,125  $ 49,842,956
Cash .............................................       751,627       294,038
Receivable for investments sold ..................             0       144,155
Principal receivable .............................        50,596         8,571
Receivable for fund shares sold ..................        27,795       109,759
Interest receivable ..............................     1,046,403       954,178
Prepaid expenses and other assets ................        19,858        23,358
         Total Assets ............................    98,578,404    51,377,015

LIABILITIES
Payable for securities purchased .................     1,725,534             0
Payable for fund shares redeemed .................       156,325       196,325
Accounts payable and accrued expenses ............        16,643       181,925
Payable to investment advisor (Note 3) ...........        20,621        13,729
Dividends payable ................................       125,915        98,693
         Total Liabilities .......................     2,045,038       490,672

NET ASSETS .......................................   $96,533,366   $50,886,343

NET ASSET VALUE:
Class A Shares:
Net asset value and redemption price per share ($87,615,980
and $31,520,494 applicable to 7,281,251 and 2,649,979 shares of
beneficial interest outstanding - Note 4) .............  $    12.03   $   11.89

Maximum sales charge, 1.50% of offering
price (1.52% of net asset value per share)                     0.18        0.18
Maximum Offering Price Per Share ......................  $    12.21   $   12.07

Class C Shares:
Net asset value and offering price per share* ($5,098,140 and $ 7,272,05
applicable to 421,501 and 612,568 shares of beneficial
outstanding - Note 4)                                    $    12.10   $   11.87

Class I Shares:
Net asset value and offering price per share* ($3,819,246 and $12,093,79
applicable to 317,474 and 1,016,690 shares of
beneficial interest outstanding - Note 4)                $    12.03   $   11.90

See notes to financial statements.
*Redemption  price  per share is equal to net asset  value  less any  applicable
contingent deferred sales charges.

Statements of operations
                                            Limited Term U.S.      Limited Term
                                             Government Fund       Income Fund
INVESTMENT INCOME:
Interest income (net of premium amortized
of $351,322 and $99,551, respectively) .......   $ 7,245,272       $ 3,849,719

EXPENSES:
Investment advisory fee (Note 3) .................   407,165           266,953
Administration fees (Note 3)
         Class A Shares ..........................   122,453            43,540
         Class C Shares ..........................     7,580             9,220
         Class I Shares ..........................     2,276             5,591
Distribution and service fees (Note 3)
         Class A Shares ..........................   240,006            83,598
         Class C Shares ..........................    60,633            73,757
Transfer agent fees ..............................   116,786            69,238
Custodian fees ...................................    76,476            64,445
Registration and filing fees .....................    46,465            41,167
Professional fees ................................    15,825            12,213
Accounting fees ..................................    12,970             7,422
Trustee fees .....................................     1,739             1,252
Interest .........................................    29,687             2,280
Other expenses ...................................     8,393            20,530

         Total Expenses .......................... 1,148,454           701,206
Less:
Expenses reimbursed by investment advisor (Note 3)  (42,117)         (137,909)
Distribution fees waived on Class C shares (Note 3) (30,312)          (36,877)

         Net Expenses ............................ 1,076,025           526,420

         Net Investment Income ................... 6,169,247         3,323,299

REALIZED AND UNREALIZED GAIN (LOSS) (Note 5)
Net Realized gain (loss) on:
        Investments ..............................(1,178,167)       (1,137,053)
        Foreign currency transactions ............         0               (34)
                                                  (1,178,167)       (1,137,087)
Net change in unrealized appreciation (depreciation) on:
        Investments                                  521,299            843,121
        Foreign currency translations ............         0              (923)
                                                     521,299            842,198
Net Realized and Unrealized
Gain (Loss) on Investments .......................  (656,868)         (294,889)

Net Increase in Net Assets Resulting
From Operations...................................$5,512,379    $    3,028,410

See notes to financial statements

Statements of changes in net assets
                                                  Year Ended        Year Ended
                                          September 30, 2000  September 30, 1999
INCREASE (DECREASE) IN NET ASSETS FROM:
OPERATIONS:
Net investment income ......................   $   6,169,247    $    7,026,209
Net realized gain (loss) on investments sold      (1,178,167)          113,049
Increase in unrealized appreciation of investments   521,299        (6,623,311)
         Net Increase in Net Assets
         Resulting from Operations .........       5,512,379           515,947
DIVIDENDS TO SHAREHOLDERS:
From net investment income
         Class A Shares.....................      (5,574,680)       (6,424,230)
         Class C Shares ....................        (319,215)         (357,487)
         Class I Shares ....................        (275,352)         (244,492)
FUND SHARE TRANSACTIONS (Note 4):
         Class A Shares ....................     (25,042,195)      (10,147,111)
         Class C Shares ....................      (2,362,598)        1,429,265
         Class I Shares ....................      (1,749,026)        3,563,264

Net Increase (Decrease) in Net Assets            (29,810,687)      (11,664,844)

NET ASSETS:
         Beginning of year                       126,344,053       138,008,897
         End of year                           $  96,533,366   $   126,344,053

See notes to financial statements

Statements of changes in net assets
                                                 Year Ended        Year Ended
                                        September 30, 2000   September 30, 1999
INCREASE (DECREASE) IN NET ASSETS FROM:
OPERATIONS:
Net investment income                          $  3,323,299    $     3,068,909
Net realized gain (loss) on investments sold     (1,137,087)         (233,873)
Increase (decrease) in unrealized appreciation
of investments .............................        842,198        (2,250,614)

             Net Increase in Net Assets
             Resulting from Operations .....      3,028,410           584,422

DIVIDENDS TO SHAREHOLDERS:
From net investment income
         Class A Shares.....................     (2,163,144)       (1,970,027)
         Class C Shares ....................       (428,600)         (344,083)
         Class I Shares ....................       (731,255)         (502,339)

RETURN OF CAPITAL
         Class A Shares .... ...............              0          (177,137)
         Class C Shares ....................              0           (32,483)
         Class I Shares ....................              0           (42,840)

FUND SHARE TRANSACTIONS (Note 4):
         Class A Shares ....................     (9,280,093)        6,919,340
         Class C Shares ....................       (224,076)          710,310
         Class I Shares ....................      2,180,207         2,578,404

         Net Increase (Decrease) in Net Assets   (7,618,551)        7,723,567

NET ASSETS:
Beginning of year ..........................     58,504,894        50,781,327
End of year (Includes distributions in excess of net
investment income of $84,579 and $84,879,
respectively .. ............................   $ 50,886,343      $ 58,504,894


See notes to financial statements
Notes to financial statements

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  diversified  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 six 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,  Thornburg  Value Fund and  Thornburg  Global Value Fund.  Each
series is  considered to be a separate  entity for  financial  reporting and tax
purposes and bears  expenses  directly  attributable  to it.  Expenses which are
applicable  to all series of the Trust are  allocated  to each  series  based on
their relative net assets.  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 at 4:00 pm EST 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.  Net  realized  capital  losses are carried
forward to offset  realized  capital gains in future  years.  To the extent such
carryforwards are used, no capital gain distributions will be made.  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 Funds of an amount sufficient to
make payment for the portfolio  securities to be purchased will be segregated on
the Funds' 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  Investment
Management,  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 ended  September 30, 2000,  these fees were payable at annual rates
ranging  from 3/8 of 1% to 11/40 of 1% of the  average  daily net  assets of the
Government  Fund and 1/2 of 1% to 11/40 of 1% of the average daily net assets of
the Income  Fund  depending  on each Fund's  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 Class A and Class C
shares,  and up to 1/20 of 1% of the average  daily net assets  attributable  to
Class I shares.  For the year ended September 30, 2000, the Adviser  voluntarily
reimbursed  certain class specific transfer agent fees of $7,643 and $76,450 for
Class A, $12,682 and $26,265 for Class C, and $21,792 and $35,194 for Class I of
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, 2000, the Distributor earned commissions aggregating $0
and $44 from the sale of Class A shares of the Government  Fund and Income Fund,
respectively, and collected contingent deferred sales charges aggregating $5,930
and $1,077 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 1/4 of 1% per annum of its average net assets  attributable to the
Class A and  Class C 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 3/4 of 1% 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 and the amount  waived for the year
ending September 30, 2000, 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, 2000 there
were an  unlimited  number of  shares of  beneficial  interest  authorized,  and
capital paid in aggregated  $104,508,404 and $52,674,889 for the Government Fund
and Income Fund,  respectively.  Transactions  in shares of beneficial  interest
were as follows:

Government Fund

                                           Year Ended            Year Ended
                                    September 30, 2000        September 30, 1999
Class A Shares .                   Shares       Amount        Shares     Amount
Shares sold ................      852,938  $ 10,167,674  1,687,187  $20,772,075
Shares issued to shareholders in
  reinvestment of dividends       327,157     3,888,919    365,972    4,498,080
Shares repurchased .........   (3,289,725)  (39,098,788)(2,877,290) (35,417,266)

Net (Decrease) .............   (2,109,630) $(25,042,195)  (824,131)$(10,147,111)

Class C Shares
Shares sold .................      72,231  $    862,807    296,895 $  3,701,013
Shares issued to shareholders
  in reinvestment of dividends     21,921       261,900     24,792      305,762
Shares repurchased ..........    (292,951)   (3,487,305)   208,348)  (2,577,510)

Net Increase (Decrease) .....    (198,799) $ (2,362,598)   113,339  $ 1,429,265

Class I Shares
Shares sold .................      38,291  $    455,521    357,156  $ 4,419,073
Shares issued to shareholders in
  reinvestment of dividends ..     21,760       258,556     19,438      237,764
Shares repurchased ...........   (208,404)   (2,463,103)   (88,647)  (1,093,573)

Net Increase (Decrease) ......   (148,353) $ (1,749,026)   287,947 $  3,563,264


Income Fund

                                         Year Ended               Year Ended
                                    September 30, 2000        September 30, 1999
Class A Shares .............     Shares       Amount    Shares          Amount
Shares sold ................    400,931  $  4,721,690  1,093,764   $ 13,307,019
Shares issued to shareholders in
  reinvestment of dividends     118,550     1,394,917    117,354      1,428,223
Shares repurchased ......... (1,309,702)  (15,396,700)  (640,785)    (7,815,902)

Net Increase (Decrease) ....   (790,221) $ (9,280,093)   570,333   $  6,919,340

Class C Shares
Shares sold ................    119,130  $  1,401,747    220,299   $  2,684,267
Shares issued to shareholders
  in reinvestment of dividends   28,291       332,471     25,540        310,368
Shares repurchased .........   (167,088)   (1,958,294)  (186,698)    (2,284,325)

Net Increase (Decrease) ....    (19,667) $   (224,076)    59,141   $    710,310

Class I Shares
Shares sold ................    384,932  $  4,537,152    410,854   $  5,027,548
Shares issued to shareholders in
  reinvestment of dividends      46,903       551,946     33,598        408,669
Shares repurchased .........   (247,361)   (2,908,891)  (233,959)    (2,857,813)

Net Increase ...............    184,474  $  2,180,207    210,493   $  2,578,404

Note 5 - Securities Transactions
For the year ended September 30, 2000,  portfolio purchase and sale transactions
(excluding  short-term  securities)  were  $21,405,352  and  $38,664,525 for the
Government   Fund  and   $31,073,488   and  $35,219,685  for  the  Income  Fund,
respectively.  The cost of  investments  for  Federal  income  tax  purposes  is
$96,806,225   and   $49,339,160   for  the  Government  Fund  and  Income  Fund,
respectively.   At  September  30,  2000,  gross  unrealized   appreciation  and
depreciation  of  investments,  based on cost for Federal  income  taxes were as
follows:
                                           Government Fund         Income Fund
Gross unrealized appreciation                $769,919                 $728,244
Gross unrealized depreciation                 894,019                  224,448
Net unrealized appreciation (depreciation)  $(124,100)                $503,796
Accumulated  net realized losses from  securities  transactions  included in net
assets at  September  30, 2000  aggregated  $7,850,938  and  $2,207,186  for the
Government  Fund and Income  Fund,  respectively.  At September  30,  2000,  the
Government Fund had tax basis capital losses which may be carried over to offset
future capital gains. Such losses expire as follows:
         Capital loss carryovers expiring in:
                  2003     $        4,647,000
                  2004              2,026,000
                  2008              17,000
                           $        6,690,000

At September 30, 2000, the Income Fund had tax basis capital losses which may be
carried over to offset future capital gains. Such losses expire as follows:
         Capital loss carryovers expiring in:
                  2003     $        588,000
                  2004              226,000
                  2008              498,000
                           $        1,312,000

At September  30,  2000,  the  Government  Fund and the Income Fund had deferred
capital  losses  occuring  subsequent  to October  31,  1999 of  $1,161,000  and
$896,000,  respectively.  For tax purposes  such losses will be reflected in the
year ending September 30, 2001.

Financial highlights
                                            Year Ended
                                           September 30,
                                     2000     1999     1998     1997    1996
Class A Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year   $12.06  $12.66  $12.31  $12.24  $12.40

Income from investment operations:
         Net investment income         0.68    0.66    0.69    0.75    0.76
         Net realized and unrealized
         gain (loss) on investments   (0.03)  (0.60)   0.35    0.07   (0.16)


Total from investment operations       0.65    0.06    1.04    0.82    0.60
Less dividends from:
         Net investment income        (0.68)  (0.66)  (0.69)  (0.75)  (0.76)


Change in net asset value             (0.03)  (0.60)   0.35    0.07   (0.16)


Net asset value, end of year         $12.03  $12.06  $12.66  $12.31  $12.24

Total return (a)                       5.58%   0.48%   8.75%   6.86%   4.92%

Ratios/Supplemental Data Ratios to average net assets:
         Net investment income         5.69%   5.33%   5.61%   6.09%   6.11%
Expenses, after expense reductions     0.98%   0.95%   0.97%   0.97%   0.99%
Expenses, before expense reductions    0.99%   0.95%   0.97%   0.97%   0.99%
Portfolio turnover rate               19.66%  19.39%  29.77%  41.10%  23.27%

Net assets at end of year (000) $    87,616 $113,215 $129,312 $133,711 $139,510



(a) Sales loads are not reflected in computing total return



Class C Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year  $12.12   $12.71   $12.37   $12.29    $12.45

Income from investment operations:
         Net investment income        0.63     0.60     0.64     0.70      0.71
         Net realized and unrealized
         gain (loss) on investments  (0.02)   (0.59)    0.34     0.08     (0.16)

Total from investment operations      0.61     0.01     0.98     0.78      0.55
Less dividends from:
         Net investment income       (0.63)   (0.60)   (0.64)   (0.70)    (0.71)
Change in net asset value            (0.02)   (0.59)    0.34     0.08     (0.16)

Net asset value, end of year     $   12.10  $ 12.12  $ 12.71  $ 12.37  $  12.29

Total Return (a)                      5.23%    0.13%    8.19%    6.49%     4.51%

Ratios/Supplemental Data Ratios to average net assets:
 Net investment income                5.26%    4.88%    5.16%    5.65%     5.72%
 Expenses, after expense reductions   1.40%    1.40%    1.40%    1.40%     1.39%
 Expenses, before expense reductions  2.11%    1.98%    2.20%    2.24%     2.35%

Portfolio turnover rate              19.66%   19.39%   29.77%   41.10%    23.27%

Net assets at end of year (000) $    5,098  $ 7,516  $  6,445 $  4,299 $   2,780



(a) Sales loads are not reflected in computing total return.


Class I Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year $ 12.05  $ 12.65  $  12.31  $ 12.24 $  12.14


Income from investment operations:
    Net investment income             0.72     0.70      0.74     0.79     0.20
    Net realized and unrealized
    gain (loss) on investments       (0.02)   (0.60)     0.34     0.07     0.10
Total from investment operations      0.70     0.10      1.08     0.86     0.30
    Less dividends from:
    Net investment income            (0.72)   (0.70)    (0.74)   (0.79)   (0.20)

Change in net asset value            (0.02)   (0.60)     0.34     0.07     0.10
Net asset value, end of year  $      12.03 $  12.05  $  12.65 $  12.31  $ 12.24

Total Return (a)                      6.07%    0.82%     9.06%    7.26%    2.45%
Ratios/Supplemental Data
Ratios to average net assets:
         Net investment income        6.06%    5.69%     6.01%  6.35%   6.64%(b)
Expenses, after expense reductions    0.60%    0.60%     0.60%  0.60%   0.58%(b)
Expenses, before expense reductions   1.08%    1.06%     1.18%  6.57% 305.74%(b)

Portfolio turnover rate             19.66%    19.39%    29.77% 41.10%    23.27%

Net assets at end of year (000) $   3,819  $   5,612   $2,250 $ 5,263  $     9


(a) Not annualized for periods less than one year.
(b) Annualized.
o   Sales of Class I shares commenced on July 5, 1996.

Thornburg Limited Term Income Fund
Class A Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year $11.93 $ 12.50 $ 12.37 $ 12.23  $ 12.11

Income from investment operations:
   Net investment income             0.73    0.69    0.72    0.76     0.7
   Net realized and unrealized
   gain (loss) on investments      (0.04)   (0.57)   0.13    0.14    0.12

Total from investment operations    0.69     0.12    0.85    0.90    0.88
Less dividends from:
         Net investment income     (0.73)   (0.64)  (0.72)  (0.76)  (0.76)
         Return of capital          0       (0.05)    0       0       0

Change in net asset value          (0.04)   (0.57)   0.13    0.14    0.12

Net asset value, end of year  $    11.89 $  11.93  $12.50  $12.37  $12.23

Total Return (a)                    6.05%   1.02%   7.08%   7.56%   7.54%

Ratios/Supplemental Data Ratios to average net assets:
 Net investment income              6.21%   5.68%   5.81%   6.16%   6.31%
Expenses,after expense reductions   0.99%   0.99%   1.00%   1.00%   0.95%
Expenses,before expense reductions  1.21%   1.19%   1.22%   1.27%   1.37%

Portfolio turnover rate             59.46% 48.50%  41.01%  13.87%  44.35%
Net assets at end of year (000)$   31,520 $41,050 $35,866 $31,281 $23,433


(a)  Sales loads are not reflected in computing total return.
Class C Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year $11.91 $12.47 $ 12.34  $12.20 $ 12.08

Income from investment operations:
  Net investment income ......       0.68   0.64    0.66    0.71    0.71
Net realized and unrealized
  gain (loss) on investments .      (0.04) (0.56)   0.13    0.14    0.12
Total from investment operations     0.64   0.08    0.79    0.85    0.83
Less dividends from:
  Net investment income ......      (0.68) (0.59)  (0.66)  (0.71)  (0.71)
  Return of capital ..........          0  (0.05)      0       0       0

Change in net asset value ....      (0.04) (0.56)   0.13    0.14    0.12
Net asset value, end of year .  $   11.87 $11.91 $ 12.47 $ 12.34 $ 12.20

Total Return (a) .............      5.62%  0.68%    6.65%   7.13%   7.12%
Ratios/Supplemental Data
Ratios to average net assets:
 Net investment income .......      5.81%  5.28%    5.40%   5.76%   5.91%
 Expenses,after expense reductions  1.40%  1.40%    1.40%   1.40%   1.36%
 Expenses,before expense reductions 2.26%  2.22%    2.30%   2.44%   3.20%

Portfolio turnover rate ......     59.46% 48.50%   41.01%  13.87%  44.35%

Net assets at end of year (000) $  7,272 $7,528 $  7,147 $  5,382 $ 2,695

(a)  Sales loads are not reflected in computing total return



Class I Shares:
Per Share Operating Performance
(for a share outstanding throughout the year)

Net asset value, beginning of year $ 11.93  $ 12.50 $ 12.36 $ 12.23  $  11.95

Income from investment operations:
  Net investment income ....          0.77     0.73    0.75    0.80      0.19
  Net realized and unrealized
  gain (loss) on investments         (0.03)   (0.57)   0.14    0.13      0.28

Total from investment operations      0.74     0.16    0.89    0.93      0.47
Less dividends from:
  Net investment income ....         (0.77)   (0.68)  (0.75)  (0.80)    (0.19)
  Return of capital ........          0       (0.05)      0       0         0

Change in net asset value ..         (0.03)   (0.57)   0.14    0.13      0.28

Net asset value, end of year  $      11.90  $ 11.93 $ 12.50 $ 12.36 $   12.23

Total Return (a) ...........          6.46%    1.32%   7.49%   7.80%     3.97%

Ratios/Supplemental Data Ratios to average net assets:
  Net investment income ....          6.54%    5.99%   6.10%   6.44%    6.67%(b)
  Expenses, after expense reductions  0.69%    0.69%   0.69%   0.69%    0.69%(b)
  Expenses, before expense reductions 1.00%    1.01%   1.19%   1.98%    4.26%(b)

Portfolio turnover rate ....         59.46%   48.50%  41.01%  13.87%   44.35%

Net assets at end of year (000) $   12,094 $  9,928 $ 7,768 $ 4,495 $  797


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

Schedule of investments
Thornburg Limited Term U.S.Government  Fund  September 30, 2000
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)
             U.S. Government Agencies (72.90%)
   <S>       <C>                                                                    <C>
   200,000   Federal Farm Credit Bank Consolidated MTNS, 5.35% due 12/11/2008 .   $  180,750
   300,000   Federal Farm Credit Bank Consolidated MTNS, 5.80% due 3/19/2009 ..      279,000
   265,000   Federal Home Loan Bank Board, 6.55% due 3/7/2005 .................      264,955
   100,000   Federal Home Loan Bank Board, 6.345% due 11/1/2005 ...............       98,656
   225,000   Federal Home Loan Bank Board, 5.24% due 12/7/2005 ................      211,043
 1,000,000   Federal Home Loan Bank Board, 6.37% due 9/26/2007 ................      977,500
   475,000   Federal Home Loan Bank Board, 6.075% due 1/2/2008 ................      453,996
 1,100,000   Federal Home Loan Bank Board, 5.98% due 6/18/2008 ................    1,042,932
   570,000   Federal Home Loan Bank Board, 5.015% due 10/8/2008 ...............      504,627
 1,465,000   Federal Home Loan Bank Board, 5.67% due 2/26/2009 ................    1,351,008
 3,000,000   Federal Home Loan Bank Board, 5.70% due 3/3/2009 .................    2,783,430
   362,537   Federal Home Loan Mortgage Corporation, Pool# 141016, 9.25% due ..      374,091
             11/1/2016
   119,682   Federal Home Loan Mortgage Corporation, Pool# 160043, 8.75% due ..      122,146
             4/1/2008
   174,784   Federal Home Loan Mortgage Corporation, Pool# 181730, 8.50% due ..      177,717
             5/1/2008
   103,771   Federal Home Loan Mortgage Corporation, Pool# 200075, 9.00% due ..      104,877
             9/1/2004
    38,189   Federal Home Loan Mortgage Corporation, Pool# 213924, 9.00% due ..       38,397
             10/1/2001
   101,609   Federal Home Loan Mortgage Corporation, Pool# 216502, 8.00% due ..      102,135
             4/1/2002
    78,094   Federal Home Loan Mortgage Corporation, Pool# 252986, 10.75% due .       82,821
             4/1/2010
   135,088   Federal Home Loan Mortgage Corporation, Pool# 256764, 8.75% due ..      137,869
             10/1/2014
   129,854   Federal Home Loan Mortgage Corporation, Pool# 260486, 9.00% due ..      132,786
             1/1/2010
   753,518   Federal Home Loan Mortgage Corporation, Pool# 273822, 8.50% due ..      769,764
             4/1/2009
   362,986   Federal Home Loan Mortgage Corporation, Pool# 291880, 8.25% due ..      369,052
             5/1/2017
    76,393   Federal Home Loan Mortgage Corporation, Pool# 294817, 9.75% due ..       79,544
             1/1/2017
    73,694   Federal Home Loan Mortgage Corporation, Pool# 298107, 10.25% due .       78,242
             8/1/2017
   224,098   Federal Home Loan Mortgage Corporation, Pool# 770297, 6.75% ......      221,501
             (adjustable rate) due 6/1/2018
   426,694   Federal Home Loan Mortgage Corporation, Pool# C90041, 6.50% due ..      420,221
             11/1/2013
   160,308   Federal Home Loan Mortgage Corporation, Pool# D06907, 9.00% due ..      165,122
             4/1/2017
    82,526   Federal Home Loan Mortgage Corporation, Pool# D06908, 9.50% due ..       84,862
             9/1/2017
   518,699   Federal Home Loan Mortgage Corporation, Pool# E00107, 8.00% due ..      525,701
             7/1/2007
   347,867   Federal Home Loan Mortgage Corporation, Pool# E49074, 6.50% due ..      344,239
             7/1/2008
   517,170   Federal Home Loan Mortgage Corporation, Pool# E61778, 6.50% due ..      512,365
             4/1/2008
   205,737   Federal Home Loan Mortgage Corporation, Pool# E65962, 7.00% due ..      205,663
             5/1/2008
 1,277,745   Federal Home Loan Mortgage Corporation, Pool# M80406, 7.00% due ..    1,273,758
             1/1/2003
 1,000,000   Federal Home Loan Mortgage Corporation CMO Series 1464 Class G, ..      986,870
             7.25% due 12/15/2021
   411,059   Federal Home Loan Mortgage Corporation CMO Series 1586 Class FA, .      405,789
             5.06% (adjustable rate)due 8/15/2007
 1,100,000   Federal National Mortgage Association, 7.40% due 12/1/2099 .......    1,113,063
   483,589   Federal National Mortgage Association, Pool# 008307, 8.00% due ...      491,152
             5/1/2008
    74,697   Federal National Mortgage Association, Pool# 019535, 10.25% due ..       78,456
             7/1/2008
   496,144   Federal National Mortgage Association, Pool# 033356, 9.25% due ...      514,089
             8/1/2016
   100,103   Federal National Mortgage Association, Pool# 040526, 9.25% due ...      103,717
             1/1/2017
   525,691   Federal National Mortgage Association, Pool# 044003, 8.00% due ...      536,857
             6/1/2017
   388,596   Federal National Mortgage Association, Pool# 050811, 7.50% due ...      391,934
             12/1/2012
   101,947   Federal National Mortgage Association, Pool# 058816, 9.25% due ...      103,245
             12/1/2002
    93,260   Federal National Mortgage Association, Pool# 063791, 8.25% due ...       93,932
             7/1/2002
   256,768   Federal National Mortgage Association, Pool# 064011, 9.25% due ...      260,036
             7/1/2003
 5,000,000   Federal National Mortgage Association, Pool# 073040, 7.625% due ..    4,987,359
             9/1/2001
   209,748   Federal National Mortgage Association, Pool# 076388, 9.25% due ...      217,350
             9/1/2018
    95,204   Federal National Mortgage Association, Pool# 077725, 9.75% due ...       99,327
             10/1/2018
   164,371   Federal National Mortgage Association, Pool# 112067, 9.50% due ...      170,518
             10/1/2016
   594,793   Federal National Mortgage Association, Pool# 156156, 8.50% due ...      612,060
             4/1/2021
   425,356   Federal National Mortgage Association, Pool# 190555, 7.00% due ...      423,944
             1/1/2014
   383,446   Federal National Mortgage Association, Pool# 190703, 7.00% due ...      383,829
             3/1/2009
   857,330   Federal National Mortgage Association, Pool# 190836, 7.00% due ...      858,187
             6/1/2009
   633,689   Federal National Mortgage Association, Pool# 250387, 7.00% due ...      633,093
             11/1/2010
   487,602   Federal National Mortgage Association, Pool# 250481, 6.50% due ...      469,770
             11/1/2015
   455,429   Federal National Mortgage Association, Pool# 251258, 7.00% due ...      455,028
             9/1/2007
 1,785,787   Federal National Mortgage Association, Pool# 252648, 6.50% due ...    1,729,124
             5/1/2022
 1,077,062   Federal National Mortgage Association, Pool# 252787, 7.00% due ...    1,073,357
             8/1/2006
   772,499   Federal National Mortgage Association, Pool# 303383, 7.00% due ...      773,078
             12/1/2009
   584,048   Federal National Mortgage Association, Pool# 312663, 7.50% due ...      590,800
             6/1/2010
 1,200,691   Federal National Mortgage Association, Pool# 323706, 7.00% due ...    1,201,892
             2/1/2009
   781,097   Federal National Mortgage Association, Pool# 334996, 7.00% due ...      780,363
             2/1/2011
 1,303,296   Federal National Mortgage Association, Pool# 342947, 7.25% due ...    1,296,571
             4/1/2024
   288,194   Federal National Mortgage Association, Pool# 345775, 8.50% due ...      296,561
             12/1/2024
   445,890   Federal National Mortgage Association, Pool# 373942, 6.50% due ...      441,199
             12/1/2008
 1,949,202   Federal National Mortgage Association, Pool# 380488, 6.10% due ...    1,865,664
             7/1/2008
 2,933,582   Federal National Mortgage Association, Pool# 380633, 6.18% due ...    2,816,934
             9/1/2008
 1,814,045   Federal National Mortgage Association, Pool# 381146, 6.04% due ...    1,724,732
             1/1/2009
   274,159   Federal National Mortgage Association, Pool# 382321, 7.60% due ...      280,500
             4/1/2010
   923,676   Federal National Mortgage Association, Pool# 382450, 7.86% due ...      977,942
             6/1/2010
 1,397,907   Federal National Mortgage Association, Pool# 382616, 7.40% due ...    1,438,531
             8/1/2010
   600,000   Federal National Mortgage Association, Pool# 382712, 7.15% due ...      604,875
             9/1/2030
   377,677   Federal National Mortgage Association, Pool# 400569, 6.00% due ...      372,167
             4/1/2009
   855,414   Federal National Mortgage Association, Pool# 406384, 8.25% due ...      877,270
             12/1/2024
   391,000   Federal National Mortgage Association Benchmark Note, 5.125% due .      374,136
             2/13/2004
   783,165   Federal National Mortgage Association CMO Series 1991-134 Class ..      778,270
             KE, 7.00% due 5/25/2008
    95,444   Federal National Mortgage Association CMO Series 1992-135 Class J,       95,951
             7.50% due 2/25/2021
 1,150,000   Federal National Mortgage Association CMO Series 1992-145 Class L,    1,144,606
             7.50% due 1/25/2006
   850,000   Federal National Mortgage Association CMO Series 1992-22 Class HC,      847,076
             7.00% due 3/25/2007
   750,000   Federal National Mortgage Association CMO Series 1993-101 Class ..      739,920
             PJ, 7.00% due 6/25/2008
 1,000,000   Federal National Mortgage Association CMO Series 1993-112 Class ..      983,120
             EC, 7.00% due 1/25/2011
 1,177,785   Federal National Mortgage Association CMO Series 1993-12 Class EC,    1,171,520
             7.50% due 9/25/2001
   978,000   Federal National Mortgage Association CMO Series 1993-32 Class H,       888,757
             6.00% due 3/25/2023
 1,500,000   Federal National Mortgage Association CMO Series 1993-35 Class G,     1,475,625
             6.50% due 11/25/2006
   531,283   Federal National Mortgage Association CMO Series 1994-36 Class UA,      525,971
             7.00% due 8/25/2023
   517,285   Government National Mortgage Association, Pool# 000623, 8.00% due       526,674
             9/20/2016
   528,332   Government National Mortgage Association, Pool# 016944, 7.50% due       537,134
             5/15/2007
   145,172   Government National Mortgage Association, Pool# 296697, 9.50% due       150,913
             10/15/2005
   226,746   Government National Mortgage Association, Pool# 306636, 8.25% due       231,208
             12/15/2006
 1,240,678   Government National Mortgage Association, Pool# 313403, 6.80% due     1,208,123
             5/20/2023
 1,620,988   Government National Mortgage Association, Pool# 357090, 6.80% due     1,575,957
             4/20/2025
   320,500   Government National Mortgage Association, Pool# 362865, 8.00% due       323,202
             7/15/2003
 1,040,767   Government National Mortgage Association, Pool# 369693, 7.00% due     1,045,596
             1/15/2009
   547,885   Government National Mortgage Association, Pool# 409921, 7.50% due       556,789
             8/15/2010
   473,084   Government National Mortgage Association, Pool# 410271, 7.50% due       480,771
             8/15/2010
   445,964   Government National Mortgage Association, Pool# 430150, 7.25% due       443,663
             12/15/2026
 1,131,306   Government National Mortgage Association, Pool# 447040, 7.75% due     1,143,332
             5/15/2027
   682,452   Government National Mortgage Association, Pool# 453928, 7.00% due       677,976
             7/15/2017
   279,767   Government National Mortgage Association, Pool# 780063, 7.00% due       281,065
             9/15/2008
   975,881   Government National Mortgage Association, Pool# 780448, 6.50% due       966,630
             8/15/2011
 2,450,000   United States Government General Services, 7.62% due 9/15/2010 ...    2,514,312

             Total U.S. Government Agencies (Cost $69,848,178)                    69,690,232

3,000,000    Federal Home Loan Bank Board, 5.985% due 4/9/2009                    2,838,462


              United States Treasury (25.30%)
  1,000,000   United States Treasury Notes, 6.25% due 4/30/2001                     999,530
  5,000,000   United States Treasury Notes, 7.50% due 11/15/2001                  5,064,050
    600,000   United States Treasury Notes, 6.25% due 2/15/2003                     603,372
  1,500,000   United States Treasury Notes, 5.75% due 8/15/2003                   1,491,555
  7,750,000   United States Treasury Notes, 7.25% due 5/15/2004                   8,076,973
  3,700,000   United States Treasury Notes, 7.25% due 8/15/2004                   3,867,647
  1,900,000   United States Treasury Notes, 6.50% due 5/15/2005                   1,947,804
  2,000,000   United States Treasury Notes, 7.00% due 7/15/2006                   2,102,500

              Total United States Treasury (Cost $23,988,687) ..                 24,153,431

              TOTAL INVESTMENTS (101%) (Cost $96,806,225) ......                $96,682,125
<FN>

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

<TABLE>
<CAPTION>

Schedule of Investments
Thornburg Limited Term Income Fund September 30, 2000
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)

U.S. TREASURY SECURITIES - 5.00%

<C>             <C>                                           <C>           <C>
1,000,000       United States Treasury Notes, 8.00% due       Aaa/AAA       $757,380
                5/15/2001
500,000         United States Treasury Notes, 6.375% due      Aaa/AAA       502,810
                8/15/2002
100,000         United States Treasury Notes, 6.25% due       Aaa/AAA       100,562
                2/15/2003
1,100,000       United States Treasury Notes, 6.50% due       Aaa/AAA       1,127,676
                5/15/2005

                Total U.S. Treasury Securities                              2,488,428

U. S. GOVERNMENT AGENCIES - 6.80%
200,000       Federal Farm Credit Bank Consolidated,        Aaa/AAA        189,374
              5.96% due 6/16/2008
100,000       Federal Home Loan Bank Board, 5.64% due       Aaa/NR         96,725
              4/30/2004
85,000        Federal Home Loan Bank Board, 5.985% due      Aaa/NA         80,285
              4/9/2009
50,000        Federal Home Loan Bank Board Consolidated     Aaa/NA         49,656
              Bond, 5.23% due 3/30/2001
75,000        Federal Home Loan Bank Board Consolidated     Aaa/NA         67,852
              Bond, 5.365% due 12/11/2008
50,000        Federal Home Loan Banks Consolidated Bond,    Aaa/NA         48,726
              6.00% due 8/25/2005
75,000        Federal Home Loan Banks Preassign 885,        Aaa/NA         70,336
              5.785% due 4/14/2008
200,000       Federal Home Loan Mortgage Corp., 5.038%      Aaa/NA         177,312
              due 10/14/2008
37,600        Federal Home Loan Mortgage Corp., Pool#       Aaa/AAA        38,070
              214180, 9.75% due 11/1/2001
121,645       Federal Home Loan Mortgage Corp., Pool#       Aaa/AAA        124,208
              850082, 9.00% due 10/1/2005
300,000       Federal Home Loan Mortgage Corp.              Aaa/NA         281,718
              Consolidated Bond, 5.835% due 7/15/2008
250,000       Federal Home Loan Mortgage Corp.              Aaa/NA         222,382
              Consolidated Bond, 5.085% due 10/7/2008
569,109       Federal National Mortgage Association,        Aaa/AAA        564,488
              Pool# 020155, 7.491% due 8/1/2014
109,108       Federal National Mortgage Association,        Aaa/AAA        111,085
              Pool# 297033, 8.00% due 12/1/2009
599,035       Federal National Mortgage Association,        Aaa/AAA        628,616
              Pool# 382398, 8.00% due 5/1/2011
600,000       Federal National Mortgage Association CMO     Aaa/AAA        594,000
              Series G94-7 B, 7.50% due 5/17/2024
46,033        Government National Mortgage Association,     Aaa/AAA        46,083
              Pool# 827148, 7.375% due 2/20/2024

              Total U. S. Government Agencies                              3,390,916

MORTGAGE BACKED SECURITIES - 0.50%
226,662       GE Capital Mortgage Services Series 92-13     Aaa/AAA        224,074
              G2, 7.00% due 1/1/2008

              Total Mortgage Backed Securities                             224,074

CORPORATE BONDS - 43.80%
BANKS
400,000        Capital One Bank Medium Term Senior Tranche   Baa2/BBB-      368,120
               Trust 00101, 6.70% due 5/15/2008
700,000        HSBC USA Inc., 8.375% due 2/15/2007           A1/A+          731,597
500,000        Keycorp, 8.00% due 7/1/2004                   A2/BBB+        513,198
1,000,000      Mercantile Bancorp, 7.30% due 6/15/2007       A2/A-          984,718
500,000        Northern Trust Company Bank Medium Term       A1/A+          470,199
               Note, 6.25% due 6/2/2008
95,000         PNC Funding Corp., 6.875% due 7/15/2007       A3/BBB+        92,233
385,000        US Bank Minnesota, 5.625% due 11/30/2005      Aa3/A+         358,822
400,000        US Bank Minnesota, 6.30% due 7/15/2008        A1/A           370,900

                                                                           3,889,787
COMPUTERS & BUSINESS EQUIPMENT
275,000       Computer Associates International Inc.,       Baa1/BBB+      263,197
              6.25% due 4/15/2003
500,000       Oracle Corp., 6.72% due 2/15/2004             A3/A-          495,863
500,000       Sun Microsystems Inc., 7.50% due 8/15/2006    Baa1/BBB+      507,944

                                                                           1,267,004
INDUSTRIALS
100,000       A T & T Canada Inc., 7.65% due 9/15/2006      Baa3/BBB       100,291
250,000       Fina Oil & Chemical, 6.875% due 7/15/2001     Aa2/NR         249,861
900,000       Goodyear Tire & Rubber, 8.50% due 3/15/2007   Baa1/BBB+      925,719
125,000       Grand Metropolitan Investment Corp., 0% due   A1/A+          99,489
              1/6/2004
90,000        Northwest Pipeline Corp., 6.625% due          Baa1/BBB       86,629
              12/1/2007
1,000,000     Pentair Inc., 7.85% due 10/15/2009            Baa2/BBB       992,659
721,931       US Air Inc., 7.50% due 4/15/2008              Baa1/A         673,814
200,000       Valassis Communications, 9.55% due            Baa3/BBB-      212,160
              12/1/2003
1,400,000     Valassis Communications, 6.625% due           Baa3/BBB-      1,300,993
              1/15/2009
75,000        Waste Management Inc., 7.70% due 10/1/2002    Ba1/BBB        73,938
500,000       Waste Management Inc., 6.875% due 5/15/2009   Ba1/BBB        455,892
979,000       Wheeling Pittsburgh Corp., 9.375% due         Aaa/AAA        1,005,736
              11/15/2003
185,000       WMX Technologies Inc., 7.00% due 5/15/2005    Ba1/BBB        176,209

                                                                           6,353,390
INSURANCE
855,000       Manufacturers Life Insurance Company,         A1/AA-         876,153
              7.875% due 4/15/2005
800,000       Old Republic International Corporation        Aa3/A+         800,127
              Debenture, 7.00% due 6/15/2007
800,000       USF & G Corp., 7.125% due 6/1/2005            A1/A+          786,837

                                                                           2,463,117
PUBLISHING
125,000       Tribune Company, 6.875% due 11/1/2006         A2/NR          122,745

REAL ESTATE INVESTMENT TRUSTS
155,000       Avalon Bay Communities, 6.625% due            Baa1/BBB+      149,684
              1/15/2005
1,000,000     Prologis Trust, 7.10% due 4/15/2008           Baa1/BBB+      937,406

                                                                           1,087,090
RENTAL AUTOMOTIVE EQUIPMENT
100,000       Hertz Corp., 7.00% due 7/15/2003              Baa2/BBB+      98,848

RETAIL
150,000       Dillard Inc., 7.375% due 6/1/2006             Baa3/BBB-      117,687
1,400,000     Duty Free International Inc., 7.00% due       Baa2/AA-       1,392,244
              1/15/2004

                                                                           1,509,931
TELECOMMUNICATION SERVICES
150,000       Metronet Communications Corporation,          Baa3/BBB       166,647
              10.625% due 11/1/2008
975,000       US West Communications Inc., 7.20% due        A2/BBB+        975,191
              11/1/2004

                                                                           1,141,838
UTILITIES
200,000       Northern Illinois Gas Company, 5.75% due      Aa1/AA         195,995
              6/1/2003
100,000       Pennsylvania Power & Light Company, 7.75%     Aa/AAA         101,371
              due 5/1/2002
150,000       Pennsylvania Power and Light Company, 6.55%   Aaa/AAA        144,555
              due 3/1/2006
50,000        Philadelphia Electric Company, 6.625% due     Aaa/AAA        49,377
              3/1/2003 (Insured: MBIA)
500,000       PSI Energy Inc., 7.85% due 10/15/2007         Baa1/BBB+      500,920
50,000        Public Service Electric & Gas Company,        Aaa/AAA        48,784
              6.75% due 3/1/2006
50,000        Virginia Electric & Power Company First       Aaa/AAA        51,444
              Refunding Mortgage, 8.00% due 3/1/2004

                                                                          1,092,446
YANKEE
2,150,000     Dao Heng Bank Group, 7.75% due 1/24/2007      Baa1/BBB      2,067,072
715,000       National Westminster Bank, 7.375% due         Aa3/A+         704,318
              10/1/2009

                                                                           2,771,390

              Total Corporate Bonds                                        21,797,586

TAXABLE MUNICIPAL BONDS - 39.70%
1,500,000       Austin Texas General Obligation, 6.90% due    Aa2/AA+        1,504,530
                3/1/2002
130,000         Baltimore Economic Development Authority,     A3/BBB+        132,068
                8.50% due 8/1/2002 (Arcade LP Project)
1,750,000       Capital Projects Finance Authority Florida    NR/NR          1,750,893
                Revenue Series B, 8.00% due 12/1/2001
1,025,000       Connecticut State Development Authority,      NR/NR          1,081,365
                8.55% due 8/15/2005
900,000         Denver City and County Special Facilities     Aaa/AAA        899,856
                Taxable Refunding & Improvement SeriesB,
                7.15% due 1/1/2008
500,000         Duke University Revenue, 6.19% due 6/1/2004   Aa3/AA         490,650
                (Duke University Hospital Project A)
115,000         Duquesne Pennsylvania General Obligation,     Aaa/AAA        115,070
                6.75% due 12/15/2001 (Insured: MBIA)
125,000         Duquesne Pennsylvania General Obligation,     Aaa/AAA        125,305
                6.75% due 12/15/2002 (Insured: MBIA)
130,000         Duquesne Pennsylvania General Obligation,     Aaa/AAA        130,982
                6.95% due 12/15/2003 (Insured: MBIA)
155,000         Fairfax County Virginia Redevelopment and     Aaa*/AAA*      156,474
                Housing Series A, 7.72% due 8/1/2009
320,000         Georgia Municipal Electric Authority Power    A3/A           319,536
                Revenue Taxable Series One, 7.00%
                                       due1/1/2006
1,900,000       Greater Valley Medical Building Partnership   Aa3/NR         1,897,587
                Series 1996, 6.95% due 3/1/2021 put3/1/01
                (LOC: Krediet Bank)
845,000         Idaho Housing Multi Family Housing Revenue    A/NR           880,127
                Series 94-B, 8.15% due 7/1/2004
115,000         Illinois Housing Development Authority        A1/A+          117,293
                Taxable Multi Family Pg Series 2, 7.85%due
                3/1/2005
405,000         King County Washington General Obligation,    Aa1/AA+        417,470
                7.55% due 12/1/2005
1,000,000       Los Angeles County Pension Obligation,        Aaa/AAA        1,025,810
                8.30% due 6/30/2002 (Insured: FSA)
705,000         Louisiana Public Facilities Authority         Aaa/NR         704,168
                Revenue Taxable Single Family
                Mortgage Series, 7.05% due 8/1/2017
2,215,000       Maricopa County Arizona Industrial            Baa3/NR        2,297,154
                Development, 9.00% due 7/1/2006
635,000         Maryland State Economic Development Corp.,    NR/NR          628,923
                7.25% due 6/1/2008(Maryland TechDevelopment
                Center Project)
240,000         Mckeesport Pennsylvania Taxable Series B,     Aaa/AAA        237,516
                6.60% due 3/1/2006
210,000         Miami Beach Housing Authority Revenue,        A3/NR          209,355
                6.75% due 3/1/2003
200,000         Missouri High Education Student Loan Series   Aaa/NR         199,950
                B, 6.80% due 2/15/2001
175,000         New Jersey Economic Development Authority     Aa3/AA         175,285
                Series B, 7.10% due 9/15/2002
95,000          New Jersey State Housing and Mortgage         NR/A+          95,091
                Financing Agency Series E, 7.95%
                due11/1/2000
1,505,000       New Orleans Home Mortgage Authority Single    Aaa/AAA        389,328
                Family Mortgage Revenue RefundingSeries
                1994-A, 0% due 10/1/2015 (Insured: MBIA)
100,000         New York Taxable Prerefunded Series D,        Aaa/A          105,408
                10.00% due 8/1/2005
1,000,000       Pennsylvania Housing Finance Agency, 8.40%    Aa2/AA+        1,010,670
                due 4/1/2010
150,000         Syracuse New York Industrial Development      Aaa*/AAA*      151,427
                Agency Series A, 7.72% due 8/1/2009
5,000           Tucson & Pima County IDA SFMR Series A,       A1/NR          4,971
                7.00% due 12/1/2003
225,000         Utica New York Urban Renewal Agency Series    Aaa*/AAA*      227,066
                A, 7.65% due 8/1/2008
505,000         Virginia Housing Development Authority        Aa1/AA+        504,929
                Taxable Rental Housing Series I, 7.30%due
                2/1/2008
250,000         Virginia Housing Development Multi Family     Aa1/AA+        251,658
                Taxable Series A, 7.125% due 11/1/2003
1,500,000       West Valley City Utah Municipal Building      A2/NR          1,512,675
                Lease, Refunding Taxable, 7.67% due5/1/2006

                Total Taxable Municipal Bonds                                19,750,590

FOREIGN SECURITIES - 4.40%
2,000,000       British Columbia Province, 9.00% due          Aa2/AA-        1,457,825
                6/21/2004 (Canadian Dollars)
745,000         Manitoba Province Canada, 6.125% due          Aa3/AA-        733,537
                1/19/2004

                Total Foreign Securities                                     2,191,362

                TOTAL INVESTMENTS  (100%) (Cost $49,339,160)                 $ 49,842,956

<FN>

*               Principal amount in U.S. Dollars unless otherwise indicated,
                value is in U.S.Dollar.
+               Credit ratings are unaudited.
                See notes to financial statements.
</FN>
</TABLE>


REPORT OF INDEPENDENT ACCOUNTANTS
To the Board of Trustees and Shareholders of
Thornburg Investment Trust


In our opinion, the accompanying statements of assets and liabilities, including
the schedules of  investments,  and the related  statements of operations and of
changes  in net assets  and the  financial  highlights  present  fairly,  in all
material  respects,  the  financial  position  of  Thornburg  Limited  Term U.S.
Government  Fund and  Thornburg  Limited Term Income  Fund,  series of Thornburg
Investment  Trust (the  "Funds") at September  30, 2000,  the results of each of
their  operations  for the year then  ended,  the  changes  in each of their net
assets and the financial highlights for each of the two years in the period then
ended, in conformity with accounting principles generally accepted in the United
States  of  America.   These  financial   statements  and  financial  highlights
(hereafter referred to as "financial  statements") are the responsibility of the
Funds'  management;  our  responsibility  is to  express  an  opinion  on  these
financial  statements  based on our  audits.  We  conducted  our audits of these
financial statements in accordance with auditing standards generally accepted in
the United  States of America,  which require that we plan and perform the audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and  disclosures in the financial  statements,  assessing
the accounting principles used and significant estimates made by management, and
evaluating the overall  financial  statement  presentation.  We believe that our
audits,  which  included  confirmation  of  securities  at September 30, 2000 by
correspondence  with the custodian and brokers,  provide a reasonable  basis for
our opinion.  The financial highlights for each of the three years in the period
ended  September 30, 1998 were audited by other  independent  accountants  whose
report  dated  October  23,  1998  expressed  an  unqualified  opinion  on those
financial statements.

PricewaterhouseCoopers LLP


New York, New York
October 27, 2000

Index Comparisons
GOVERNMENT FUND
Index Comparisons
Compares performance of the Government Fund Class A shares and Class C shares to
the Lehman Brothers  Intermediate  Government Bond Index, and the Consumer Price
Index for the periods  ended  September  30, 2000.  On September  30, 2000,  the
weighted average  securities ratings of the Index and the Fund were AAA and AAA,
respectively, and the weighted average portfolio maturities of the Index and the
Fund were 3.9 years and 4.7 years, respectively. Class A shares became available
on November 16, 1987, and Class C shares became  available on September 1, 1994.
Past  performance  of the  Index  and the Fund may not be  indicative  of future
performance.










Average Annual Total Returns (periods ending 9/30/00)(at max. offering price)
A Shares
One Year:                  4.03%
Five Years:                4.96%
Ten Years:                 6.19%
From Inception (11/16/87): 6.56%













Average Annual Total Returns (periods ending 9/30/00)
C Shares
One Year:                  5.23%
Five Years:                4.87%
From Inception (9/1/94):   5.39%

INCOME FUND
Index Comparisons
Compares performance of the Income Fund Class A shares and Class C shares to the
Lehman Brothers  Intermediate  Government  Corporate Bond Index and the Consumer
Price Index for the periods ended September 30, 2000. On September 30, 2000, the
weighted  average  securities  ratings  of the Index and the Fund were A and AA,
respectively, and the weighted average portfolio maturities of the Index and the
Fund were 4.3 years and 4.4 years, respectively. Class A shares became available
on October 1, 1992 and Class C shares  became  available  on  September 1, 1994.
Past  performance  of the  Index  and the Fund may not be  indicative  of future
performance.












Average Annual Total Returns (periods ending 9/30/00)(at max. offering price)
A Shares
One Year                   4.46%
Five Years:                5.50%
From Inception (10/1/92):  5.70%













Average Annual Total Returns (periods ending 9/30/00)
C Shares
One Year                  5.62%
Five Years:               5.41%
From Inception (9/1/94):  5.77%

Thornburg Limited Term U.S. Government Fund - Class A
Outperformed Taxable Money Market Funds

Return from a $100,000 Investment 9.30.90 to 9.30.00
$58,071 Donoghue's Taxable
Money Market Fund Average

$82,252 Thornburg Limited Term
U.S. Government Fund

The chart above is for the Funds' Class A Shares only.  Class C Shares and Class
I Shares have different  sales charges and expenses.  See the inside front cover
page for the 30-day  SEC yield and the total  returns  at the  maximum  offering
prices for one year,  five years,  and ten years for the Class A and C shares of
the Fund.
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 is
based upon the  dividends  paid for the months  covered  by this  analysis,  the
beginning  offering  price  of  $11.92  and  the  ending  NAV of  $12.03.  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.  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 the Limited Term U.S.  Government  Fund did vary from time to
time, and it will continue to vary in the future.  The analysis assumes that the
investor  receives the net asset value of shares owned,  plus accrued income, at
redemption.  Due to the effect of sales commissions,  the net asset value of the
Limited Term U.S.  Government Fund shares is 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.

Thornburg Limited Term Income Fund - Class A
Outperformed Taxable Money Market Funds
Return from a $100,000 Investment 9.30.95 to 9.30.00

$28,073 Donoghue's Taxable
Money Market Fund Average

$34,472 Thornburg Limited Term
Income Fund

The chart above is for the Fund's Class A Shares only.  Class C Shares and Class
I Shares have different  sales charges and expenses.  See the inside front cover
page for the 30-day  SEC yield and the total  returns  at the  maximum  offering
prices  for one year,  five  years,  and since  inception  for the Class A and C
shares of the Fund.
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 Income Fund is based upon
the  dividends  paid for the months  covered  by this  analysis,  the  beginning
offering  price of $12.11 per share,  respectively  and the ending NAV of $11.89
per share.  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.  THIFX 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.  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 Limited  Term Income Fund did vary from time to time,  and it
will  continue to vary in the future.  The  analysis  assumes  that the investor
receives  the  net  asset  value  of  shares  owned,  plus  accrued  income,  at
redemption.  Due to the effect of sales commissions,  the net asset value of the
Limited Term 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.

Investment Manager
Thornburg Investment Management, Inc.
119 East Marcy Street
Santa Fe, New Mexico 87501
800.847.0200

Principal Underwriter
Thornburg Securities Corporation
119 East Marcy Street
Santa Fe, New Mexico 87501
800.847.0200





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