[ARTICLE] 6
[CIK] 0000830487
[NAME] MANAGED HIGH INCOME FUND INC.
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          FEB-28-1999
[PERIOD-END]                               AUG-31-1998
[INVESTMENTS-AT-COST]                      494,768,344
[INVESTMENTS-AT-VALUE]                     479,657,389
[RECEIVABLES]                               13,261,540
[ASSETS-OTHER]                             479,657,389
[OTHER-ITEMS-ASSETS]                               533
[TOTAL-ASSETS]                             492,919,462
[PAYABLE-FOR-SECURITIES]                     7,118,809
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                    2,060,523
[TOTAL-LIABILITIES]                          9,179,332
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   524,531,845
[SHARES-COMMON-STOCK]                       44,014,989
[SHARES-COMMON-PRIOR]                       44,014,989
[ACCUMULATED-NII-CURRENT]                      347,687
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                     2,906,850
[ACCUM-APPREC-OR-DEPREC]                  (42,173,056)
[NET-ASSETS]                               483,740,130
[DIVIDEND-INCOME]                            1,153,450
[INTEREST-INCOME]                           25,083,719
[OTHER-INCOME]                                       0
[EXPENSES-NET]                               3,079,456
[NET-INVESTMENT-INCOME]                     23,157,713
[REALIZED-GAINS-CURRENT]                     2,906,850
[APPREC-INCREASE-CURRENT]                 (42,173,056)
[NET-CHANGE-FROM-OPS]                     (16,108,493)
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                   22,711,734
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                              0
[NUMBER-OF-SHARES-REDEEMED]                          0
[SHARES-REINVESTED]                                  0
[NET-CHANGE-IN-ASSETS]                    (38,820,227)
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                        2,367,337
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                              3,079,456
[AVERAGE-NET-ASSETS]                       318,735,287
[PER-SHARE-NAV-BEGIN]                            11.87
[PER-SHARE-NII]                                  00.53
[PER-SHARE-GAIN-APPREC]                          (0.89)
[PER-SHARE-DIVIDEND]                             00.52
[PER-SHARE-DISTRIBUTIONS]                           00
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              10.99
[EXPENSE-RATIO]                                  00.18
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>