The current decline in coin value I think is due to the many negative issues that have evolved through the media.
Many affected eventually sell their coins when they are losing money.
They are consumed by negative news about Cryptocurrency therefore at the moment when there is a lot of sales then the value of the coin price becomes down.
But news in general are NOT negative...let me copy/paste just a few:
"Mercury FX: Ripple xRapid Test Reveals the ‘Unbelievable’ Speed of XRP"
"Huawei Releases Bitcoin Wallet In App Store, Pre-Installed On All New Smartphones"
"Switzerland Welcomes New Blockchain Accelerator, VC Firm"
"Cryptocurrency exchange Crypto Facilities launching Ether (ETH) futures"
"Iranians Turning to Bitcoin for Money Transfers"
"Financial Institutions In A Race: Who Will Bring Crypto Trading To The Fiat Masses First?"
"Singapore's minister of finance meets Vechain!"
"Here’s How Ripple Can Help Financial Institutions Save Up To 70% In Just 2 Minutes"
"Fundstrat Sets $64K Price Target for BTC, and This One Relates to Mining"
"Ripple Announces Successful First Pilot Tests Using XRP Cryptocurrency"
"Nasdaq CEO Adena Friedman is Bullish on Cryptocurrencies"
"Survey: Government, logistics, and medical industry to benefit the most from blockchain technology in China"
"Top Wall Street Strategist Tom Lee Confirms $36,000 Bitcoin Price Target by 2019 Year End Based on Mining Economics"