The Emerald Isle has lived up to one of its mottoes for ETF investors: “Erin go bragh” — that’s Irish for “Ireland forever.” The iShares MSCI Ireland Capped (EIRL) is up 20% year to date through Dec. 21, putting it ahead of all international stock exchange traded funds tracked by IBD, except for a couple holding China stocks. EIRL produced an annual average gain of 20.7% over the past three years and 17.3% over the past five years.