Despite an overall decrease of $200 billion in certificate of deposit balances in the first half of this year, those that have $100,000 or more with terms over one year are growing.

According to research firm Market Rates Insight, from January to August 2010, jumbo CDs of one year and over grew from $183 billion to $214 billion, which was an increase of $31 billion or 17%. By comparison, jumbo CDs of under one year decreased by $91 billion from $739 billion in January to $648 billion in August. Regular CDs of one year and longer were nearly flat, and regular CDs less than one year decreased from $502 billion to $443 billion.

"People with time and money are hedging against further decline in long-term CD rates" said Dan Geller, executive vice president at MRI. "Rates of long-term CDs declined twice as much as short-term CDs since the beginning of this year. Further decline in long-term CDs is very likely next year barring any occurrence of hyperinflation."