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Market Depth Auto Trading the SPI

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graemeal

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28 August 2007
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I would just would like to get some opinions on the merits of having a system that automatically totals the about of shares on offer, 6 levels deep on the buy side as opposed to the same on the sell side. As in you can add up LIVE the totals of either 3, 4, 5 or 6 market depth levels of say BHP, CBA, WBC, NAB, ANZ combined presented as one total, and compare it with the same on the other side giving you a plus or minus figure.

I have been trialing the finished product for a week with promising results, but very early days.

So a live figure counting the total buyers coming in as opposed to the sellers.

I know traders look at depth and try to estimate the bids compared to the sells across many stocks in their head, but that does my head in.

Any comments would be greatly appreciated
 
Hi graemeal,

I can't comment on your system but webiress plugged into excel can easily do those calculations.
 
Won't work. IMO as discussed many time here.

Especially those stocks considering the ticks needed to get over costs.

When you say "promising results" exactly what does that mean? High win loss? High R:R. Surprising indication of direction over different market conditions?
 
Thanks. Can you extract the market depth totals from Webiress? At present I can bring into a spreadsheet up to 6 levels of the market depth. As in the grand total of the 6 levels of the Bids as opposed to the offer.

So say 5 stocks bids over 6 levels as one total as opposed to the same on the ask side.

Thanks

Graeme
 
Trembling hand. Not sure what you mean. Promising results such as I have been trading the SPI (was CMC now IG CFD on SPI) for 4 years. As tough as hell. Promising means that over the past week I am yet to have a loss over about 15 trades. Unheard of in my past years of trading. I am still not totally convinced because early days. I export the Market depth figures into a spreadsheet. As in the amount of shares on the buy side and the amount on the sell side. So after a run down say 20 pts on the SPI you wait for the buyers to start building on the bid side giving you an edge. May be old hat and others giving that data already. No idea
 
OK. Where are you getting the data? If you use something like IB you can do this in a dynamic format via an API.

Would give it more than 15 trades before I would be convinced. Especially if the last weeks trades were all long. Perfect conditions for 1/2 range pull backs to jump on long. That market will change as soon as...........
 
Then long and the short of it is that you can visually look at BHP. CBA, WBC, NAB & ANZ's market depth and try and get some idea of the buildup. To me totally impossible. You become cross eyed within a week. All those stocks, 6 levels of bids and offers amount to 30 levels. I am looking at 1 live figure. The total of 5 stocks by 6 bid levels minus the 5 stocks by 6 levels ask levels
 
graemeal said:
Thanks. Can you extract the market depth totals from Webiress?
Click to expand...

Webiress shows the whole order book, once it's plugged into excel and set up the spreadsheet receives dynamic updates ( or whatever you want to call it ). You can then calculate the results however way you like, totals at 10,20 then bid/ask or whatever tickles your fancy.

Might set it up tommorrow for fun on the top 20 ( If i'm getting bored cos the market isn't copping a beating).

Could be worth comparing ratios to the actual index, see if a pattern develops, thanks for the heads up.
 
Yes I agree totally. I have been a full time trader for 4 years. That is my living so no pie in the sky stuff from me. The toughest business that I have ever encountered and I am over 50 years old with 4 under my bealt. I am working with a well known charting company and after many years convinced them to include the market depth levels in the DDE data. The reasoning behind it is that I also developed a spreadsheet that tracks the top 200 ASX stocks, applying their relative weighting multiplied by the gain/loss live during the day that gave me a too the second, exact read on how many points the XJO was putting on to the 1/10th of a point. Assuming it would give me an edge because the only thing that directs the SPI is the XJO, Or BHP (12.57%), CBA (7.56%). WBC (7.21), ANZ (5.56%) and NAB (5.07%). Nearly 40% of the market. To no avail. Useless, the SPI moved the same time if not before. So now the buildup of the buyers, sellers is the missing link that I have been looking for for years. AT THIS EARLY STAGE

What is IB and API? As I said this stuff could be out there already.
 
graemeal said:
So now the buildup of the buyers, sellers is the missing link that I have been looking for for years. AT THIS EARLY STAGE
Click to expand...

Its not whats sitting in the book that moves a market, it what you cannot see hitting @ market.
 
Thanks for the input. At this stage that seems not to be the case but early days and not a simple,more buyers than sellers aproach. Market must be overbought or sold first. at least 20 pts away where it shouild be. Should be ? Where the SPI's guestimate is plus or minus what the DOW futures has done since 8.00am. Adding or subtracting the SPI's equivilent. Anyway happy days and I have been around far too long to get over enthusiasic over a whim and a prayer.

Thanks again. will check on webiress and interactive

Thanks
 
Cos i'm really bored I just set up the spreadsheet to calculate the cumulative 5 level dollar value/bid divided by ask on the top 20 and the ratio lookes awfully similar to Trin-asx.

Think i've just wasted 1/2 hour.

Perhaps I should just go to bed.
 

HI Cutz, there used to be an added cost per month for WI to plug into excel - is that still so? Are you still using Commsec WI?
 

It'll help to look at the ADRs too like BHP in the US etc...
Also, if you look closely, the major stocks follow SPI unless theres someone doing size.
 
Trembling Hand said:
Its not whats sitting in the book that moves a market, it what you cannot see hitting @ market.
Click to expand...

But the 'last' trade comes up on the dom, in some doms. This you can see and record, with programs like brackettrader, using its volume tracker.

And what about large stubborn limit orders that get taken out as price moves towards them, they can have predictive qualities.

Not arguing, just trying to pick ur brain a bit.
 
sails said:
HI Cutz, there used to be an added cost per month for WI to plug into excel - is that still so? Are you still using Commsec WI?
Click to expand...

How's it going Sails,

Yep, i'm still using commsec iress, no extra for the add in, part of the standard package.

EDIT>>Back to the drawing board guys, just found out that unlike quote data, full depth doesn't update dynamically, you need to refresh manually.
 
Broadway said:
But the 'last' trade comes up on the dom, in some doms. This you can see and record, with programs like brackettrader, using its volume tracker.
Click to expand...

yeah, the same as it shows on a chart, T & S & quote screen. Having viewed the bids/asks sitting in the book will not tell you what the next trade will be.
 
Hello this is a VOLUME TRANSACTION ONLY chart i have been working on for a couple of years, bars are created in volume so i can measure horizontal space accurately and i can measure raw speed. like anything you need a trading market and ranges to work, not good on pre NFP day. I will have another chart that will plot buyers and sellers
 

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Holy crap, you can barely even see the price in that mess

How on earth do you trade with a chart like that
 
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