What we are seeing in the UK is market makers at play - they mark the price down in the morning to make holders nervous, who then sell - and later on in the day, the price goes up as large protected buys are filled!
Some insight from SMURI19 in the UK:
"I suppose it's all about holding your nerve. They did the same thing on DWY yesterday, then we had a protected buy of 300k at the end of the day mopping up the 300k sells for the day.
Edit: This intra-day reversal pattern is a very bullish signal and bodes well for further increases next week.
Another protected buy of 150k just gone through at 80.05 pence. Showing as a sell"
SLV Price at posting:
0.0¢ Sentiment: Buy Disclosure: Held