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Big Data Workshop – Volatility o f Stocks. By: Nadav Lapidot and Adi Gilboa. Problem Description. Stocks exchange investments are becoming widely spread “Stocks will always go up eventually..” D o they really??. Possible uses. Educate the crowd Choose investments correctly
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Big Data Workshop – Volatility of Stocks By: NadavLapidot and AdiGilboa
Problem Description Stocks exchange investments are becoming widely spread “Stocks will always go up eventually..” Do they really??
Possible uses Educate the crowd Choose investments correctly Asses stocks portfolio value in a long-term perspective Allow bad people to make even more money..
Possible users The obvious Banks Investments companies Brokers The not so obvious Private (un-educated) investors Regulator
Money making The obvious Banks Investments companies Brokers The not so obvious Investments consulting services (web site)
Game Plan Get data online (Semi) real-time Parse Remove redundancies
Game Plan Cont. So what’s the big deal? Evaluate coefficients Beta = 17 ? Use (simplified) statistical known algorithms
Algorithm building blocks Web crawling ini data input Data Parsing Match parsing to data source (google, yahoo etc.) Define data structs Juggling between data updates and algorithm calculations
Algorithm building blocks Distribution handling Generate a distribution function from a list of samples Generate a single sample from a distribution function Econometric calculations Asses coefficients using Autoregressive based algorithms Iterate on recent incoming data
(Current) System outputs Next k-years’ variance assessment Program keeps on running
Algorithm alternatives Distribution handling Implementation improvements Coefficients assessment Improve statistical algorithms and work methods Web crawling Change “crawling target” for better data update rates