Performance at Month End - Amendment

Mercury Grosvenor Trust PLC
17 December 1999

The issuer has made the following amendment to the 'Performance at Month End'
announcement released on 6 December 1999 at 12:50 under RNS No 0099C.

All of the % Portfolio figures in the bottom two tables were incorrect and have
been changed.  

The full corrected version is shown below.


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MERCURY GROSVENOR TRUST plc

All information is at 30th November 1999 and unaudited

Performance at month end with net income reinvested
                         Three       One      Three    Five
                         Months      year     years    years
Net asset value          2.8%       17.7%     57.9%    154.7%
Share price              1.5%       29.5%     62.5%    120.1%
FTSE All-Share Index     5.5%       20.5%     68.9%    135.7%
At month end

Net asset value: 328.13p includes current yr net income of 8.44p
Share price:     266.00p Discount:                         18.9%
Total assets:    £85.09m Net yield:                         1.9%
Gearing:           0.0%  Value of debt:                     Nil
Ordinary shares in issue: 25,933,170

The NAV is recalculated monthly with respect to cash, cash
equivalents and quoted investments in the portfolio.

Unquoted investments were last revalued at 30th June 1999
UK Sector                    % Portfolio
Support Services                    24.1
Health                              22.1
Property                             9.5
Overseas Venture Funds               7.8
Pharmaceuticals                      4.8
Distribution                         4.7
Media                                3.5
Engineering                          1.9
Electronics                          1.5
Paper, Packaging & Printing          1.2
Hotels & Leisure                     1.2
Telecom                              1.1
Cash/Fixed Interest                 16.6
                                   -----
                                   100.0

Ten Largest Investments
Company                   % Portfolio      Sector

G2 Estates                     9.5         Property
Tunstall                       8.0         Health
PII                            6.9         Support Services
Priory Healthcare              5.9         Health
Braitrim                       5.7         Support Services
Weston Presidio                4.5         Overseas Funds
Dechra Holdings                4.4         Distribution
Biocompatibles+                3.7         Health
Patientline Holdings           3.4         Support Services 
Match                          3.1         Health
                              ----
                              55.1
                              ====

+  Listed on The London Stock Exchange

Sources: Mercury Asset Management Ltd, Micropal
Latest information is available by typing 'MAMINDEX' on Reuters, 'MAMI' on
Bloomberg, or '8800' on Topic3 (ICV terminal).
16th December 1999.