I wrote about the VanEck Rare Earth and Strategic Metals ETF ( REMX ) last year as a broad, educational tour of the fund, not a buy or sell call. REMX, at its core , is a pretty concentrated vehicle. ItI focus on producing objective, data-driven research, mostly about small- to mid-cap companies, as these tend to be overlooked by many investors. From time to time, though, I also look at large-cap names, just to give a fuller sense of the broader equity markets.Analyst’s Disclosure:I/we have no stock, option ...