Infinite auctions are an auction type where a lot does not move toward a conventional fixed closing point in the same way as a scheduled timed auction. Instead, the lot remains open within an ongoing auction environment until another rule, event, or action changes its status. This page explains what an infinite auction is, how it differs from timed formats, and what governance matters when there is no standard countdown-based close.
At iRostrum, an infinite auction is an always-on auction environment where a lot is not driven by a single scheduled event close. Instead, it remains available until another business rule, seller action, or transaction outcome changes its status.
You may also see similar ideas described as continuous auctions, always-on auctions, or 24/7 online auction environments.
A timed auction is designed around a defined bidding window and known lot close logic. An infinite auction is not driven by a fixed countdown close in the same way and therefore does not depend on a single event-based end point.
This distinction matters because users often assume every online auction must close like a timed auction. An infinite auction changes the buyer’s expectation from “bid before the clock ends” to “bid within an always-available trading environment governed by separate rules”.
Continuous lot closing still assumes lots are closing. An infinite auction does not define the lot around a scheduled close in the first place.
Infinite auction describes a type in which the lot remains available without that conventional closing rhythm.
An infinite auction is useful where the business wants permanent discoverability, ongoing bidder engagement, and flexible seller control rather than a concentrated sale event.
This can be relevant in marketplace-style environments, evergreen inventory, specialist stock, or seller models where immediacy and persistent visibility matter more than a scheduled auction room moment.
