Quote from marketsurfer:
Yes, it has been proven time and time again that it is impossible to predict price based on past price/volume movements. These factors are irrelevant to the future. If they were not irrelevant you would be able to answer the question-- how many moves in one direction, or series of moves increase the odds that the next move or series will be in the same or opposite direction.
You can use price drivers that are evident prior to price moving and you can use the book (just like HFT does ) for an edge.
If there was/is an edge in past price it would have been exploited to extinction a long time ago. You think the rooms full of quants just sit around and read the paper? Every pattern has been tested adinfiium every TA tool, and there is NOTHING but delusion of the faithful;;;;
Questions:
1) What exactly is a price driver? A buyer bidding price higher? A seller offering price lower?
2) Is HFT the only way to profit in today`s market? HFT sure have changed the micro structure of today`s electronic markets and squeezed out human scalpers, but the market still offers profitable daily swings on a higher time frame? And what about higher time frames than the intraday time frame? Surely, the impact of HFT diminishes the further you zoom out, save a flash crash once in a blue moon. I don`t understand your argument and my question is really a rhetorical one, but feel free to answer.
3) HFT is only a subset of algorithmic trading. Far from all algorithms trade on an ultra-short time frame and yes, they use price history as input. What else would they use?
Your argument against how every pattern would be exploited to extinction is not a new one, but a rather poor one still. You can`t buy a $10 dollar book and find a pattern that works all the time for the rest of history. But yes, there are patterns that can be exploited during certain points of time during certain market conditions. A prior poster mentioned volatility analysis and keeping track of current conditions. Patterns come, patterns disappear and some come back. A good trader adapts.
Making a winning system based on technical analysis is not easy, but I certainly believe (know) that it is possible. Money management is obviously key, since it is a matter of gauging probabilities.
Sincerely and in anticipation,
Laissez Faire