Quote from fearless9:
Hi dc,
What is the composition of your "order book delta" showing on your chart?
Quote from dcraig:
Construct an OHLC time series with the instantaneous ratio of total contracts at ask to total contracts in book (at bid and ask). All five levels on each side. This is plotted as candlestick.
The smoothed representation shown is obtained by applying John Ehlers 23 finite impulse response filter (from his web site) to (H + L + C) / 3 of above OHLC series. An SMA 3 would probably do just as well.
I tried weighting the number of contracts at prices further from the last traded price but couldn't get much from that.
Yes, it is ACV.Quote from fearless9:
If I read you correctly, you are pulling a ACV from the DOME.
Do you use it at all?
Quote from dcraig:
Yes, it is ACV.
Yes, I think it is quite valuable, though a shorter time frame ( or rather tick ) chart is also good, perhaps better, for looking at it. There seems to be quite a few interesting things about the DOME eg volatility in book often precedes move in price. A very low volume period of perhaps quite short duration with mostly single lots traded often precedes move in book which precedes or coincides with move in price. I'm still studying.
The main thing which is quite obvious is that "market moves towards size" - until it doesn't.
