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 stands for Exchange-Traded Fund. ETF's are investment funds. They are traded on the stock market like stocks. They are a very popular exchange-traded product. Edit. Share to: Jpipper.he acronym ETF stands for 'exchange-traded fund', referring to investments that can be bought and sold like stocks. Some of the ETF commodities currently on the stock market â¦ include the PowerShares Global Agriculture Portfolio and the Market Vectors Gold Miners ETF. Answers Publisher.