There are lots of reasons why the market value of bitcoins is going down. One of these are the external factors such as political policies like new laws and agreement.
Another thing is the demand in their services which slowly decreasing the market value when the demand falls down.
Why necro this thread 2 weeks after it was created? It wasn't answered by anyone because it wasn't interesting and at this point its content is completely irrelevant. Why would you want to explain the reasons for a small downward move of Bitcoin, when we are already in reversal?