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Having locked markets is bad in the sense it freezes the price formation process. Ideally we would like to have a price on as much instruments as possible so that we know their value. it prevent investors to buy (or sell) it and thus adds frictions, transaction costs, etc. We would like to enable investors to buy or sell when they need/want, to let the ...


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I explored this further and following that the following works: require("RCurl") STOCKS <- paste("AAPL", "BIDU", "AMAZ", collapse=",") STRING <- paste0("http://finance.google.com/finance/info?client=ig&q=INDU,IXIC,DRRX,", paste0(STOCKS, collapse=",")) TEMP <- getURL(STRING) Then, one needs to do some editing (a combination of strsplit and ...


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As you note, that yields open / high / low / close / volume. Is it also possible to obtain the most recent trade?


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R is very useful for downloading data from Yahoo/Google . Here is an example for downloading from Google Finance : library(quantmod) getSymbols("DRRX;AAPL;AMZN", from="2014-01-01", to="2014-11-20", src='google') Just adjust the from and to dates as needed. This will download the OHLCV data from google finance to your R global environment.


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In my case, it really depends if you are using any software at all. I usually get my Discount Factors with a 15 decimals precision. So im always storing at least 15 digits for DF, and yields up to 7-8 as rhaskett said. For equities, i guess it's pretty much the same as for yields, or even less. Nevertheless i store any return, price or ratio with a 7-8 ...


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As background, Floating point precision is a way of storing numbers such that the precision is relative to the largest digit. For instance, the number $0.00123$ stored in fixed precision needs 6 digits of precision (3 zeros and the 3 non-zero numbers). However, this same number stored as floating point precision $1.23 \cdot 10^{-3}$ needs only 3 ...


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Sure, if you know how to use $r$ you can use $getSymbols()$ to do this. If u have no idea what the tickets are maybe this link can help u out: Stackoverflow.com/questions/885456/stock-ticker-symbol-lookup-api


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In the past, The Fed typically raised interest rates to help balance the money supply. When the economy is good and unemployment is low, the Fed raises rates to prevent an over-tightening of the money supply. This is traditionally how inflation works and when this happens it is actually a sign of health. Commodity prices tended to soar because there was ...


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Yahoo Finance might be the best source, you have a lot of information available, Date Open High Low close Volume Adj Close*. https://uk.finance.yahoo.com/q/hp?s=VOD.L


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Errors in some data can cause the calculation to go awry. For EPD, I have reported that they believe the stock had a 2:1 split on August 21, 2014 and on August 22, 2014. Only one of these splits occurred, so all the split adjusted data is off by a factor of 2 before the split that did not happen. I reported this error in August, but in November I noticed ...



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