The Market Vectors Gold Miners ETF (NYSEArca: GDX) and the Market Vectors Junior Gold Miners ETF (NYSEArca: GDXJ) get most of the attention, but plenty of other gold mining funds have soared this year as well.

Add the Global X Gold Explorers ETF (NYSEArca: GLDX) to that list. While small by the standards of some mining ETFs at $43.3 million in assets under management, GLDX’s year-to-date returns are anything but tiny. The ETF is up 42%, a performance that ranks it near the top of the non-leveraged ETF group this year.

GLDX’s stats are improving. In mid-February, the fund sported a year-to-date gain of 29% with $37 million in assets.[Seven Mining ETFs to Remember]

GLDX, like the rival GDXJ, has benefited as adventurous investors looking to boost their gains in resurgent gold miners have embraced small-cap fare and GLDX is chock full of small-caps. The ETF is home to 21 stocks with an average market value of $283 million, according to Global X data. Plus, the ETF’s technical look compelling.

“GLDX is consolidating in a tight range above the rising 20-day EMA after breaking out above the 200-day MA on heavy volume. We are looking for GLDX to resume its uptrend after three to four weeks of sideways action,” said Deron Wagner of Morpheus trading Group.