As many here would be aware the ETF space is growing quite...

As many here would be aware the ETF space is growing quite quickly.
How a ETF works is when someone sells there units the units are cancelled out from the total units or shares on issue, so the shares on issue change up or down depending on investors buys or sells and the ETF will buy or sell shares over the different companies that are held within the ETF.
If units or shares are increasing in a ETF, so does the cash being available, and in the case of many ETF's this cash needs to be invested and distributed in the stocks the ETF is holding or similar sector stocks a ETF plans to add.
In the case of the URA ETF that holds a large holding in ASN, there shares on issue has increased from 106,251,666 107,151,666 to currently 107,821,666 over the past week increasing there cash available to 6,383,246.89 USD
Little to no stock purchases appear to have occurred from the cash balance over the past week.
I suspect based on the above that the URA ETF will be buying up today and next week as the fund continues grow.