Ann: Change of Director's Interest Notice - PH, page-84

I would say it's true there is no margin call on the loan contract. The shares being held as collateral is a pricing metric. By PH offering security, that allows Macquarie to discount the rate via reduced cost of capital.

However if the share price collapses it's likely PH interest rate will increase.

I repeat it is in no one's interest for this companies share price to continue to fall. Hooper or Macquarie.

Its understandable for people to be nervous. But if you were long yesterday, not much has changed today. If anything this highlights PH really needs this win.