Mid-cap stocks have outperformed larger, blue-chip stocks during the rally. For example, SPDR Dow Jones Mid Cap ETF (NYSEArca: EMM) was up 24.5% for the year ended May 2, compared with a 17% rise for the S&P 500, according to Morningstar.
Sirius XM is also a component in First Trust Consumer Discretionary AlphaDex (NYSEArca: FXD).
SPDR Dow Jones Mid Cap ETF