Gallery. 1  Hand-cranked planetary sharpener, with cover in place. 2  Hand-cranked planetary sharpener from 1950â60, with cover removed. 3  Hand-cranked planetary sharpener with spring-driven pencil holder. 4  AC-powered electric pencil sharpener. 5  Battery-operated sharpener.
Description. Tracking Error is a measure of how closely an ETF follows its benchmark index. This data point seeks to isolate the ability of the portfolio managers to track the index, ignoring the confounding effects of ETF liquidity on market prices.escription. Tracking Error is a measure of how closely an ETF follows its benchmark index. This data point seeks to isolate the ability of the portfolio managers to track the index, ignoring the confounding effects of ETF liquidity on market prices.
ETF is the abbreviation of exchange traded fund, sometimes people will refer to this as electronic traded fund but the first is more correct. So that is it, that is all you wanted to know, you can click away from the page now. Well I guess I will say a little more on the subject.An ETF is a mutual fund which is traded on a stock exchange, blending the primary aspects of both traditional mutual funds and individual stocks. For more information on etfs vs. mutual funds go here.ell I guess I will say a little more on the subject. An ETF is a mutual fund which is traded on a stock exchange, blending the primary aspects of both traditional mutual funds and individual stocks. For more information on etfs vs. mutual funds go here.