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#1
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I have used VBA a few times and I am taking a finance class where I need to
be able to calculate a porfolio's risk (standard deviation). Here is what I am trying to do: With user defined stock symbols and date range, go to either MSN Money or Yahoo!Finance and retrieve historical closing prices and populate it back in Excel. From there do a little data manipulation to prep it for the calculations. The goal is to make it user friendly, hence the use of VBA forms, etc. Here's my problem: The data manipulation and calculations are not a problem once the data is in Excel. My question is "How do I get the historical stock prices based on the user defined data (symbol and date range) from MSN Money or Yahoo!Finance and populate it in Excel?" I have racked my brain for the past four days trying to figure it out. I would appreciate any help. Robert |
#3
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"Don Guillett" wrote:
goto the yahoo group called xltraders http://groups.yahoo.com/group/xltraders/ I have a free file there called "GetYahooMultipleHistory" under the author donalb36. First, how do you find these tools? When I click on "Files", I get an alphabetized list. Is that list complete? For example, I do not find GetYahooMultipleHistory per se, but I do find GetYahooMultipleHistory97a_P. Is that what you really meant, or am I missing something? Second, it would be nice if the xltraders contributors adopted an open-source approach to their tools. For example, the macros in your tool are passworded. Thus: (a) I cannot learn from them; (b) I cannot leverage them -- i.e, modify them for my own purposes or incorporate them into my workbook; and (c) I cannot review the implementation to be sure that it does not contain trojan horses, viruses, and other malicious code. (If the OP simply needs the data to cut-and-paste into the OP's workbook, the OP might as well use Yahoo's CSV-formatted download feature. But the OP's requirement seems quite clear: the OP wants to implement a user-friendly interface in __his/her__ own spreadsheet.) Finally, what assurance does a user have that xltraders files do not contain trojan horses, viruses or other malicious code? I presume the answer is "none". In that case, I would only open such spreadsheets (with active macros) in a limited-user account. And if I cannot look at the macros, I would be loathe to ever use the spreadsheet in an unlimited-user (adminsitrator) account. That further limits the usefulness of xltraders tools. Am I being prudent or too risk-adverse? Perhaps this should be discussed in the xltraders group. But I think it is appropriate to highlight the "red flags" here, since you have steered a number of people to xltraders tools in the past. |
#4
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"Robert K" wrote:
With user defined stock symbols and date range, go to either MSN Money or Yahoo!Finance and retrieve historical closing prices and populate it back in Excel. Caveat emptor .... Yahoo's "adjusted close" price includes an "adjustments" for dividends. For example, see HPQ for 9-Dec-05 and 12-Dec-05. If that satisfies your needs for your analysis of the portfolio performance, great! On the other hand, Yahoo's "close" price is not adjusted for splits and other exchanges due to organizational changes (e.g, spinoffs). And the "split" information that you see online is not included in the CSV-formatted download data :-(. Consequently, it is difficult to automatically compute the price adjusted for splits and other exchanges based on Yahoo data. |
#5
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From my file that you cited in your tirade. Yahoo CSV info on the Data page.
Date Open High Low Close Volume Adj. Close* 12/12/2005 30.00 30.12 29.72 29.97 10,127,700.00 29.97 12/9/2005 29.22 30.00 29.22 29.92 9,133,900.00 29.84 -- Don Guillett SalesAid Software " wrote in message ... "Robert K" wrote: With user defined stock symbols and date range, go to either MSN Money or Yahoo!Finance and retrieve historical closing prices and populate it back in Excel. Caveat emptor .... Yahoo's "adjusted close" price includes an "adjustments" for dividends. For example, see HPQ for 9-Dec-05 and 12-Dec-05. If that satisfies your needs for your analysis of the portfolio performance, great! On the other hand, Yahoo's "close" price is not adjusted for splits and other exchanges due to organizational changes (e.g, spinoffs). And the "split" information that you see online is not included in the CSV-formatted download data :-(. Consequently, it is difficult to automatically compute the price adjusted for splits and other exchanges based on Yahoo data. |
#6
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Congratulations! You were able to find the correct file.. Were you able to
figure out how to use it? I have no idea if the list is complete ?? as it is a list of files posted by members who, if desired, have a right to their intellectual property. You can always add sheets and use the data as desired. I just custom designed a program for a user of this file. If you do not want to use files from this group, don't.. If you want to discuss, join and rant all you like. -- Don Guillett SalesAid Software " wrote in message ... "Don Guillett" wrote: goto the yahoo group called xltraders http://groups.yahoo.com/group/xltraders/ I have a free file there called "GetYahooMultipleHistory" under the author donalb36. First, how do you find these tools? When I click on "Files", I get an alphabetized list. Is that list complete? For example, I do not find GetYahooMultipleHistory per se, but I do find GetYahooMultipleHistory97a_P. Is that what you really meant, or am I missing something? Second, it would be nice if the xltraders contributors adopted an open-source approach to their tools. For example, the macros in your tool are passworded. Thus: (a) I cannot learn from them; (b) I cannot leverage them -- i.e, modify them for my own purposes or incorporate them into my workbook; and (c) I cannot review the implementation to be sure that it does not contain trojan horses, viruses, and other malicious code. (If the OP simply needs the data to cut-and-paste into the OP's workbook, the OP might as well use Yahoo's CSV-formatted download feature. But the OP's requirement seems quite clear: the OP wants to implement a user-friendly interface in __his/her__ own spreadsheet.) Finally, what assurance does a user have that xltraders files do not contain trojan horses, viruses or other malicious code? I presume the answer is "none". In that case, I would only open such spreadsheets (with active macros) in a limited-user account. And if I cannot look at the macros, I would be loathe to ever use the spreadsheet in an unlimited-user (adminsitrator) account. That further limits the usefulness of xltraders tools. Am I being prudent or too risk-adverse? Perhaps this should be discussed in the xltraders group. But I think it is appropriate to highlight the "red flags" here, since you have steered a number of people to xltraders tools in the past. |
#7
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"Don Guillett" wrote:
From my file that you cited in your tirade. It was intended as a heads-up to the casual reader, not a "tirade". Yahoo CSV info on the Data page. Date [...] Close [...] Adj. Close* 12/12/2005 [...] 29.97 [...] 29.97 12/9/2005 [...] 29.92 [...] 29.84 Demonstrating my point. There should be no difference between close and adjusted close on those dates, if you expect adjustments to reflect only splits and similar exchanges due to spinoffs etc. Yahoo's adjustment on 12/9/2005 and earlier (until the next event) is the $0.08 dividend on 12/12/2005. You would see this if you looked at the Yahoo historical quotes online. I know that some people include dividends when determining cumulative "total returns". I did not think analysts include dividends in adjusted prices when determining "average return" and especially "volatility". |
#8
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Thanks for your help and insight!
" wrote: "Don Guillett" wrote: From my file that you cited in your tirade. It was intended as a heads-up to the casual reader, not a "tirade". Yahoo CSV info on the Data page. Date [...] Close [...] Adj. Close* 12/12/2005 [...] 29.97 [...] 29.97 12/9/2005 [...] 29.92 [...] 29.84 Demonstrating my point. There should be no difference between close and adjusted close on those dates, if you expect adjustments to reflect only splits and similar exchanges due to spinoffs etc. Yahoo's adjustment on 12/9/2005 and earlier (until the next event) is the $0.08 dividend on 12/12/2005. You would see this if you looked at the Yahoo historical quotes online. I know that some people include dividends when determining cumulative "total returns". I did not think analysts include dividends in adjusted prices when determining "average return" and especially "volatility". |
#9
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