<PAGE>
WORLD MONITOR TRUST--
SERIES B
MONTHLY REPORT/
AUGUST 28, 1998
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WORLD MONITOR TRUST--SERIES B
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Dear Interest Holder:
Enclosed is the report for the period from August 1, 1998 to August 28, 1998 for
World Monitor Trust-- Series B (the 'Trust'). The net asset value of an interest
as of August 28, 1998 was $105.38, an increase of 11.82% from the July 31, 1998
value of $94.24. The year-to-date return for the Trust, which commenced trading
June 10, 1998, was an increase of 5.38% as of August 28, 1998.
The estimated net asset value per interest as of September 16, 1998 was $106.59.
Past performance is not necessarily indicative of future results.
Should you have any questions, please contact your Prudential Securities
Financial Advisor. For account status inquiries, contact Prudential Securities
Client Services at 1-800-535-2077.
Sincerely yours,
/s/ Thomas M. Lane, Jr.
------------------------
Thomas M. Lane, Jr.
President and Director
PRUDENTIAL SECURITIES
FUTURES MANAGEMENT INC.
Please note that the value which appears on your Prudential Securities statement
is an estimated value at calendar month-end. The actual value as of the last
Friday of the month is contained in this report.
<TABLE>
<CAPTION>
STATEMENT OF OPERATIONS
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For the period from August 1, 1998 to August 28, 1998
Revenues:
<S> <C>
Realized gain on commodity
transactions........................... $ 381,081
Change in unrealized commodity
positions.............................. 605,726
Interest income.......................... 32,549
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1,019,356
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Expenses:
Commissions.............................. 45,645
Management fee........................... 11,761
Incentive fee............................ 99,482
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156,888
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Net gain................................. $ 862,468
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</TABLE>
<TABLE>
<CAPTION>
STATEMENT OF CHANGES IN NET ASSET VALUE
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For the period from August 1, 1998 to August 28, 1998
Per
Total Interest
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<S> <C> <C>
Net asset value at beginning of
period (75,372.689 interests)... $7,102,865 $ 94.24
Contributions..................... 269,400
Net gain.......................... 862,468
Redemptions....................... (7,750)
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Net asset value at end of
period (78,068.533 interests)... $8,226,983 105.38
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Change in net asset
value per interest.......................... $ 11.14
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Percentage change............................. 11.82%
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</TABLE>
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I hereby affirm that, to the best of my knowledge and belief, the information
contained herein relating to World Monitor Trust--Series B is accurate and
complete.
PRUDENTIAL SECURITIES FUTURES
MANAGEMENT INC.
/s/ Barbara J. Brooks
------------------------
by: Barbara J. Brooks
Treasurer
