Besides the hard fork that resulted in the split between Ethereum and Ethereum Classic, the Ethereum chain has also had multiple successful hard forks. (bitcoinmagazine.com)
In addition, development has been happening regularly between the last successful hard fork and the recent address serialization change. (bitcoinnews.international)
Despite so far successful hard fork execution, according to Bitfinex, over the last 24 hours the exchange rate has decreased by 2 % to $ 9.8 for 1 ETH. (coinfox.info)