Buying/Selling Pressure:
Daily Buying Pressure = (High – Open) + (Close – Low)
Daily Selling Pressure = (Low – Open) + (Close – High)
Then I apply a moving average to smooth the values.

Gravity/Lift:
I first calculate the correlation of Buying/Selling Pressures against the market’s (I used QQQQ for the market). Then I subtracted the estimated effect of the market from the current Buying/Selling Pressure.

Bull/Bear Battle:
Buying/Selling Pressure adjusted for volume. If the volume is high, the values are scaled down, and vice versa. The theory is that if the stock moves up a lot by low volume, then clearly the bull is winning, etc.

I hope this provides some clarification of the signals you are looking at.

Cheers.

first, let me congratulate to your blog. I usually hate blogs, because most of them are worthless, giving nothing new value, only functions as a news-funvideo-interestinglinks collector with adding comments capability. But I’ve found yours different. The posts titled “Dinosaurs, Big Companies, …” and “News vs. Reality” got really inspired me.

I’m currently a swing trader, but the methods presented in this tool (Graphical Stock Analyzer) opened a new world for me of visualizing a company’s fundamental data, and I’m certain in that it will be very useful for me when I will change to passive portfolio management from active trading. I develop and write my own tools for seeking profit opportunities on the stock markets, and I see that you have the same mind. I think it’s a great, because I believe only those kind of strategies can work in the long-haul that isn’t widely used.

No trading system can be perfect, and I’m always thinking about new additions to mine. I found some of your work at first sight valuable for me and I’m interested in how your “Buying/Selling Pressure”, “Gravity/Lift”, “Bull/Bear Battle” values are calculated. If you would explain them in a private e-mail, I would also share some parts of mine system with you. I understand if you would not to do it, because you don’t trust in me (since I have no reference) or by other causes – then just ignore this request in this message.

Looking forward to hear about you soon,
Blaze David

If you like the tool, please let others know. Thanks.