The selection of a week where tradings happened (shown with orange bars) works by hovering over an orange bar – this bar’s year and week is then shown next to the select box (currently week 12 of year 2003) at the top. If you now click on this bar or (without hovering over another orange bar) somewhere on the chart then this orange bar turns green and the tradings for this week are displayed below in a table.
The deal type tells you if the stocks have been bought (B / green) or sold (S / red). For some deal types I couldn’t figure out what they were supposed to mean – mostly because they were just short snippets from the whole deal type description of the original trade report – they are colored gray. The rest should be evident.
The reporter’s position and sometimes the deal type are given in German. Check out Google Translator or dict.cc for the translations. I did my best to clean up the data and make it homogenous but I didn’t want to take this further as it would have consumed too much time.
Corporate metamorphosis and one company several stocks
Mind that during those 10 years some companies merged or split which also affects the respective stocks of course. On the right side I added a column which keeps the ISIN or WKN of the traded stocks. If it differs (it is colored red in that case) then it is not clear if the traded stocks correspond to the quotes chart. That depends on what happened in detail. For example there is one deal referring to VW but to the no-par value share and not to the charted preferred stock which is listed in the DAX.
d3.js is fun to work with
(original article published on www.joyofdata.de)