How so?
Genuinely interested in why I have misunderstood the concept.
As you can tell I base my thoery that gaps are NOT random, and I stated that a questioning process can begin from there.
Well for one I think you've completely misunderstood the whole premise of the academic basis for short term randomness in markets. There's plenty of studies out there on the basics of EMH and application of the principles of randomness to market prices so I'm not going to go through it in here (and I lack a deep enough understanding to feel comfortable preaching on the subject anyway) but suffice it to say that as far as I'm aware, I don't think that anyone, anywhere believes that gaps, in isolation, are random.
Of course I could have just stated the obvious that a gap is created when there is no mid-priced traded through.
Also depending on timeframe viewed some gaps do not even appear, even though they do exist. So traders using an hourly chart will not see gap created on a 1 minute chart (unless it is created on the first 1 minute bar of a new 60 minute bar).
I think there is problem in relying on charts and candle sticks or other types of OHLC graphic to assess gaps
So if we go back to Patricia's question about weekend forex:
Who decides the opening bid/offer at the open on the Sunday evening (UK time)?
I don't really see the point of that questions. It's kind of like asking who decides any bid/offer at any time.
If you mean how do market makers generate bid/offer prices over the weekend I can't tell you that. You'd probably be best asking someone with institutional experience to tell you that. I'd assume it's a matter of market makers dealing with open orders and adjusting the pricing mechanism to reflect any ECN transaction activity. There are also regulatory issues concerning what bids/offers they have to quote.
I'd assume that the pricing difference (whether speculative activity or not) would be the result of some sort of highly quantitative witchcraft that's beyond me or possibly econometric modelling adjusting for event or interest rate risk, carry and the like.
If you have a read of the alchemy of finance, Soros talks about some very simple but interesting currency models. My opinion, as a layman, is that I doubt they'd be anywhere near 100% applicable to today's market but they give you some insight into the rationale and considerations of those that can move the markets.
If anything, the fact that prices continue is a bit of a testament to the fact that previous prices are not indicative nor do they have the power to predict future prices which brings me back to the first point and round we go again.
I'm don't have anywhere near the technical proficiency required to address these issues with any degree of significance but if you go digging you'll find empirical and theoretical research on all of this stuff. It's all very interesting and will probably lead to more questions than answers.
Love,
Teh Scose
:clover: