As of June 15, 2024, there has been no official announcement from Costco regarding an increase in the price of their memberships. 

Despite ongoing speculation and comments from Costco's Chief Financial Officer Richard Galanti indicating that a price hike is likely to happen at some point, there has been no formal confirmation or specific details released about any imminent changes to the membership fees.

Therefore, based on the criteria set for resolving the market, the appropriate resolution is "No" since no price hike for Costco's membership plans has been officially announced by the specified date.

Thank you for participating in this market. 

Will resolve 'yes' if Costco announces they are raising the price of either their Gold Star membership, currently $60, Executive membership, currently $120, or Business membership, currently $60. 

Will resolve June 15 or upon announcement of a price hike, not upon the price raise going into effect. 

For example, if Costco announces they're raising the price in March but the price hike goes into effect in September, the question would resolve as "yes." 

The news must come from either Costco, via an official source, such as their online newsroom, 

https://investor.costco.com/news/default.aspx

, or a reputable news outlet relaying the news from Costco. 

Stories speculating on a price hike do not count. 

Will resolve to 'no' if no price hike to any of Costco's three membership plans is announced by year-end. 