The downward movement occurred immediately after it became known that the bankrupt exchange Mt.Gox is once again postponing the deadline to deliver outstanding BTC to its creditors, supposedly due to administrative delays. The market seems to interpret that this "endless story" is not good for the digital currency and decided to carry out massive sales that caused the price of the currency to fall slightly.

In the following graph, provided by the TradingView financial analysis tools platform, you can see the price movement of BTC in the last 24 hours:
As is often the case, “when bitcoin sneezes, cryptocurrencies catch a cold.” BTC is the pioneering digital asset and the one that determines the pulse of the entire market. More than 30 cryptocurrencies have numbers "in red" both daily and weekly, a fact that is evidenced in the following data from the CoinMarketCap price tracker
The graph shows that the fall (within the top 100 cryptocurrencies with the highest market capitalization) is led by IOTA. This digital asset, native to a network that specializes in technology for the “Internet of Things,” is not only following BTC in its fall, but also has its own reasons for falling in price.