Highest Money Market Account Tier That I've Seen

I've never seen a money market tier with a balance this high. The top rate of United Central's Global Money Market is very competitive at 1.75% APY. HOWEVER, this requires a balance of $10 million. The rate for the next tier is only 1.35% APY, and this requires $1 million. It's not really a good deal, but I found it interesting.

Last year the top tier "only" required $1 million. United Central Bank had some competitive rates back in 2009. This year, their rates have been below average.