Evaluation of yield and risk of investment while depositing available financial resources of the company

There are evaluated possibilities in my thesis which the company with enough available financial resources has while investing at commodity markets into the gold, silver and platinum. The thesis briefly describes functions and regulation of exchange including the description of instruments the company can use for investment. Another part of my work is a description of statistical evaluation of price data of commodities. Statistical methods and formulas are also analysed in methodology. Practical part contains evaluation of price development which is also described by means of various mathematical curves. Finale of my work is discovery if and for how long it was worth to invest into gold in years 2000 - 2011. My mental hypothesis that more years investment mean higher year yield rate was disproved. The result says that the long-term investment (12 years) had the lowest year yield rate