<PAGE>
<TABLE>
<CAPTION>
<S> <C>
Pricing Supplement No. 23 Dated September 29, 1999 Filed Pursuant to: Rule 424(b)(3)
(To Prospectus dated April 1, 1999 and File No.: 333-72791 Prospectus Supplement
dated April 1, 1999)
</TABLE>
BANK ONE CORPORATION
MEDIUM-TERM NOTES, SERIES B
<TABLE>
<S> <C> <C> <C>
Date of Issue: October 5, 1999 [ ] Fixed Rate [ ] Commercial Paper Rate Note [ ] LIBOR Reuters
[X] Senior [ ] Federal Funds Rate Note [X] LIBOR Telerate
Maturity Date: December 17, 2001 [ ] Subordinated [ ] CD Rate Note [ ] Prime Rate Note
[ ] CMT Rate Note [ ] Treasury Rate Note
[ ] LIBOR Note [ ] Other
</TABLE>
CUSIP: 06422NKN5
Principal Amount: $55,000,000.00
Issue Price (As a Percentage of Principal Amount): 100%
Interest Rate/Initial Interest Rate: Not Available
Interest Payment Dates: 17th Day of March, June, September, December
Interest Reset Dates: 17th Day of March, June, September, December
Index Maturity: 90 days
Designated CMT Maturity Index:
Designated CMT Telerate Page:
Spread: + 21 Basis Points
Spread Multiplier: None
Minimum Interest Rate: None
Maximum Interest Rate: None
Interest Payment Period: October 5, 1999 to December 17, 1999 and quarterly
thereafter, up to but excluding the interest payment
date
Interest Rate Reset Period: October 5, 1999 to December 17, 1999 and quarterly
thereafter, up to but excluding the interest payment
date
Redemption Date(s) or Period: None
Optional Repayment Date(s): None
Calculation Agent (If Applicable): Bank One, NA
Additional Terms:
This Pricing Supplement may be used by Banc One Capital Markets, Inc. ("BOCM"),
a wholly owned subsidiary of the issuer, in connection with offer and sales
related to secondary market transactions in the Notes. BOCM may act as principal
or agent in such transactions. Such sales will be made at prices related to the
prevailing market prices at the time of sale.
This issue has a short first interest period.
<PAGE>
<TABLE>
<CAPTION>
<S> <C>
Pricing Supplement No. 24 Dated September 29, 1999 Filed Pursuant to: Rule 424(b)(3)
(To Prospectus dated April 1, 1999 and File No.: 333-72791
Prospectus Supplement dated April 1, 1999)
</TABLE>
BANK ONE CORPORATION
MEDIUM-TERM NOTES, SERIES B
<TABLE>
<S> <C> <C> <C>
Date of Issue: October 4, 1999 [ ] Fixed Rate [ ] Commercial Paper Rate Note [ ] LIBOR Reuters
[X] Senior [ ] Federal Funds Rate Note [X] LIBOR Telerate
Maturity Date: April 4, 2000 [ ] Subordinated [ ] CD Rate Note [ ] Prime Rate Note
[ ] CMT Rate Note [ ] Treasury Rate Note
[ ] LIBOR Note [ ] Other
</TABLE>
CUSIP: 06422NKU9
Principal Amount: $100,000,000.00
Issue Price (As a Percentage of Principal Amount): 100%
Interest Rate/Initial Interest Rate: Not Available
Interest Payment Dates: 4th Day of January, April, July, October
Interest Reset Dates: 4th Day of January, April, July, October
Index Maturity: 90 Days
Designated CMT Maturity Index:
Designated CMT Telerate Page:
Spread: + 15 Basis Points
Spread Multiplier: None
Minimum Interest Rate: None
Maximum Interest Rate: None
Interest Payment Period: October 4, 1999 to January 4, 1999 and quarterly
thereafter, up to but excluding the interest payment
date
Interest Rate Reset Period: October 4, 1999 to January 4, 1999 and quarterly
thereafter, up to but excluding the interest payment
date
Redemption Date(s) or Period: None
Optional Repayment Date(s): None
Calculation Agent (If Applicable): Bank One, NA
Additional Terms:
This Pricing Supplement may be used by Banc One Capital Markets, Inc. ("BOCM"),
a wholly owned subsidiary of the issuer, in connection with offer and sales
related to secondary market transactions in the Notes. BOCM may act as principal
or agent in such transactions. Such sales will be made at prices related to the
prevailing market prices at the time of sale.
