The purpose of the Bollinger Bands is to provide a relative definition of high and low. By definition prices are high at the upper band and low at the lower band. This definition can aid in rigorous pattern recognition and is useful in comparing price action of the action of indicators to arrive at systematic trading decision.
Calculation: Bollinger Bands:
1) Middle Band = 20-day simple moving average (SMA);
2) Upper Band = 20-day SMA + (20-day standard deviation of price x 2);
3) Lower Band = 20-day SMA - (20-day standard deviation of price x 2);
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Freelancer Limited operates a freelancing and crowdsourcing marketplace in Australia. It operates through two segments, Online Marketplace and Online Payment Services. The company, through its marketplace, hires freelancers to do work in areas, such as software development, writing, data entry and design, engineering, sciences, sales and marketing, and accounting and legal services. It connects employers and freelancers from approximately 247 countries, regions, and territories. The company also provides escrow payment services. Freelancer Limited was founded in 2009 and is based in Sydney, Australia.