Opinion on  UltraShort Russell2000 ProShares (TWM)
Shorting small caps

The Russell 2000 Index measures the performance of the small-cap segment of the U.S. equity universe.  This particular ETF attempts to capture twice the inverse performance of this index.  Currently, the index is heavy on financial services, consumer discretionary, healthcare, technology, and materials.  Of those sectors, I only like the last one going forward for the next year.   This l ink explains the methodology for the index's membership.