The buzz that started last Thursday saw silver dealers scramble to find supplies for retail buyers, and the amount of silver traded in the London market surged to 1.006 billion ounces on Monday.
Spot silver vaulted as high as $30.03 an ounce on Monday from $25 on Thursday morning.
An early post, which quickly spread across social media, encouraged buying of iShares Silver Trust, an exchange traded fund (ETF) whose shares represent ounces of silver sitting in vaults.