StockExchanges.org
If you develop an information Portal that educates wannabe Jordon Belforts all about Stock Exchanges than you should be able to monetize this Domain Name.
Traditionally .org is a non-profit extension. The bottom line DBomer is create an Organization that is topical and maybe create a residual income OR sell it for around $500 - $2500 as is, undeveloped.
Regards
matt