ETFs Are Now Double Inversed

More new exchange traded funds were added to the growing list today, as ProShares launched their UltraShort ETFs.  These ETFs are designed to magnify short exposure to market indexes and investors can now "go short" with a single ETF.

The ETFs include:

• UltraShort QQQ ProShares (QID)
• UltraShort S&P 500 ProShares (SDS)
• UltraShort MidCap 400 ProShares (MZZ)
• UltraShort Dow 30 ProShares (DXD)