The Seller must set an "opening price" to begin the auction. This amount must be within 30% of the Reserve Price if there is one set. If there is no reserve price set, the Seller may set the Opening Price at whatever amount is desired. Please note that the opening price is for the entire lot, not the per unit price.
The obligatory starting bid for an auction. Depending on whether you will be watching your auction, your opening bid should be either the highest price you are prepared to pay for that item or you may bid by the increment shown. At Bidz.com the opening value and the mandatory bid increment is always $1.00.
The mandatory starting bid for a given auction, set by the seller at the time of listing. An opening bid should be either the maximum you would be willing to pay for that item or the opening amount plus the increment shown on the item page