BatchGetSymbols is a R package for large-scale download of financial data from Yahoo Finance. Based on a set of tickers and date ranges, the package will download and organize the financial data in the tidy/long format.
Yahoo finance data is far from perfect or reliable, specially for individual stocks. In my experience, using it for research code with stock indices is fine and I can match it with other data sources. But, adjusted stock prices for individual assets is messy as stock events such as splits or dividends are not properly registered. I was never able to match it with other data sources. My advice is to never use the data of individual stocks in production.
Since version 2.6, the cache system is session-persistent by default, meaning that whenever you restart your R session, you lose all your cached data. This is a safety feature for mismatching prices due to corporate events.
# CRAN (official release) install.packages('BatchGetSymbols') # Github (dev version) devtools::install_github('msperlin/BatchGetSymbols')
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