NY -- Standard&Poor's CreditWire 12/24/1998 -- Standard&Poor's today placed its double-`A'-plus counterparty credit rating on De Nationale Investeringsbank N.V. and its double-`A'-plus rating on the bank's senior unsecured debt on CreditWatch with negative implications. The CreditWatch placement followed the announcement of the sale of the majority of the Dutch government's 50.3% stake in the bank to Stichting Pensioenfonds ABP and Stichting Pensioenfonds PGGM, two large Dutch pension funds. The funds are expected to tender for the remainder of the shares, with the Dutch government retaining a 15% stake. Standard&Poor's will meet with the bank and the two new shareholders early in the new year to discuss: -- Any planned changes in the bank's risk