As AdrianC mentioned, you can't just look at the eTrade home screen and say "crap down 27%". If you're reinvesting distributions, you've got many more shares than you originally bought. That 2015 distribution was $12.90 per share. You were then able to reinvest at around $18-19 per share. You increased your number of shares by about 65-70% from that single distribution if you reinvested.
If you didn't reinvest, then you got a ton of cash - that is part of your investment return. That first screen in eTrade shows the current price and the average price you paid for all shares. It is not a proper rate of return computation. You can be ahead and still see a negative value there.
Incidentally that big drop on Dec 11, 2015 was because of the distribution - they sent out $13 / share, so each share was worth $13 less. This is what happens when a stock or fund goes ex-dividend. Then you had some trading of the securities that the fund holds to push it down another $.30 or so.