okay i'm gonna break this up - bear with me here.
well, yes call prices falling can cause 'fear' but what I said is they directly don't influence the market as they are not connected..
yes but anything remotely linked to housing causes the channel 7/9/10 bandwagon to jump on board and create fear and panic to keep people watching - if everyone is watching and they see this - then sentiment will be down - so it affects it indirectly. wave in a pool kinda thing.
ie a hedge fund cant keep short selling stock to artificially force the price down as they can with CFD's in the stock market. This is why I don't believe shorting direct stock should be legal. it can/is been used to manipulate the market without you even needing to produce real stock.
my point is, to have an option, you need stock for the option to exist. so they must create a stock, have an IPO for AUS property, and launch a ticker on the ASX. otherwise, no option can exist if there is no stock to trade it. therefore, if there is stock, it can be shorted, regardless of the derivative market effects or actions. therein liles the issuse. what is the stock tied to?
if this stock dips below $5 - is derivative trading halted?
I would say there would be selected suburbs which are traded, say top 20 in each suburb.. and it would work on the medium price.. so you could have Toorak Dec call $960,000
that's a good way of thinking - but still is a very micromarket system. if people in Toorak see these derivative values and/or stock values falling, does it make them more likely to want to sell?