I agree this is really weird. The whole crypto market is very bullish right now. The downside trend of Shield is hard to explain. Project is well on track, no bad news around.

Maybe the scammers from CoinsMarkets exchange are selling even more Shield coins they stole from their users. This happened already in the past where they sold millions of coins, see the proof below:
https://medium.com/@SHIELDcurrency/statement-regarding-coinsmarkets-1adad3df3825

Hope this soon comes to an end.