About 15

About the Site

Thanks for visiting BradleySiderograph.com.  This web site is primarily intended to explain and analyze a formula in a book written by Donald Bradley in the 1940s (i.e., the “Bradley Siderograph” indicator or “Bradley Barometer”).  I hope you find the resources on the site to be useful and informative.  Feel free to reach out with a comment on the site or via email (see below) if you have any questions, thoughts, or comments you would like to share.

About Me

For as long as I can remember I have been interested in the stock market.  When I was younger I used to watch “Wall Street Week” with Louis Rukeyser.  I used to look through various investment magazines to try to pick out individual stocks and mutual funds that would beat the market.  Eventually I took my search for knowledge beyond standard fundamental analysis and technical analysis into more esoteric fields.  Before long I came across the work of W.D. Gann, Donald Bradley, and others.  At first I saw their techniques as being somewhat unusual until I saw things from a broader perspective.

David Ovason’s book, “The Secret Architecture of Our Nation’s Capital,” piqued my interest.  In this book Ovason describes how the laying of the cornerstone for the most important buildings in Washington, D.C. took place at times when specific astrological phenomena were taking place (e.g., the Capitol, the White House, and the Washington Monument).

I also came across a variety of other very prominent people who use astrology, and I had an epiphany.  I realized that the top one tenth of one percent of society appears to pay serious attention to astrology, whereas the remaining 99.9% of society often doesn’t seem to give astrology a second thought.

There are tens of thousands of people analyzing the stock price of big blue chip companies such as Apple or Google using “standard” techniques, so it’s not easy to “beat the market” using only fundamental and technical analysis.  I see Financial Astrology as offering a unique possibility of generating alpha given that we are still in an early phase of the development of the field as compared to other more established methodologies for security analysis.  I’m glad that you’re here to learn more and “get in on the ground floor.”  I hope you find the analysis and research on the site to be useful in helping you learn more.


See below for my email address, but please note I don’t check it very frequently.Email

NOTE: Past performance is no guarantee of future results.  I am not intimately familiar with your own personal financial situation, and therefore I am unable to offer you any financial advice or recommendations.  Nothing contained on this web site contains investment recommendations, advice, or offers to buy or sell securities.  The content on this site is for educational and entertainment purposes only.  Please seek your own competent investment professionals as needed to inform your investment decisions.

Leave a Comment

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

15 thoughts on “About

  • Marco

    Hallo Matt.
    I’m interested in purchasing the Advanced Astro Dashboards but it seems to me the links to continue the purchase don’t work.
    Can you explain me how to buy the complete package and what is the correct price?
    Thank you and kind regards.

  • VJ

    Hi Matt ,
    Cant see the costing of your product and services. I have come from India .
    Please advise the price so that we can take this forward .
    Have done some analysis as per Vedic astrology for middle term dates .
    They seem to be working well with the Bradley as well this year .

  • Leonard Eisman


    The market moved according to the graphs but in the opposite direction so the week after option expiration should be interesting

  • Manfred Kunzendorf

    My Excel is still Microsoft 2010. Can I Download the Dashboard into that? If you could let me have an email with your advice?
    Thank you,

  • Vejay Pratap Singh Kahlon

    I certainly Agree there is a Science . You have put your Heart and Soul into it . Do you have a Software that you sell .
    I am in India doing Vedic Financial Astrology .and would like to relate this to western Astrology . Its more from Analaytical Purpose.
    Can you help ,me and advise me accordingly .

    • Bradley Siderograph

      Hi Vejay,

      Thanks for your comment. One thing I really like about Vedic Financial Astrology is that it is based on the “sidereal” zodiac. In several of his published books and papers Donald Bradley emphasized that he liked to use the “sidereal” zodiac rather than the more traditional western “tropical” zodiac.

      For example, in his book “Solar and Lunar Returns,” Donald Bradley wrote that predictive techniqus based on the sidereal zodiac “excel in accuracy and lucidity any method of prognosis heretofore advanced in our subject…The historic and scientific proof of hte validity of the sidereal zodiac has been fully covered in recently released publications…Statistical research completely confirms the reality of the sidereal zodiac, while the proof is undeniable that the astrologers of ancient times used it exclusively…Sidereal astrology works, and that is sufficient justification, by any criterion, for its adoption.”

      I haven’t delved into the “sidereal” zodiac as much as Donald Bradley had, but it makes sense to me that it could be a useful tool to leverage from Vedic Financial Astrology. This could be combined with elements of Western Financial Astrology, such as the Donald Bradley Siderograph.

      One thing that initially drew me to the Bradley Siderograph was that it takes into account the sum total of all the major planetary aspects that are taking place at any one time rather than trying to make a determination off of only one planetary aspect taking place by itself. If you are new to the Bradley Siderograph I encourage you to watch an introductory video here:

      If you are interested in graphing the Bradley Siderograph against a particular security (e.g., the NIFTY), you might find the Bradley Bars Dashboard or the Advanced Astro Dashboard to be useful. The Advanced Astro Dashboard contains all of the functionality of the Bradley Bars Dashboard, but it also contains additional new indicators that I created that are specific to each individual security. See below for links to these two resources:


    • Bradley Siderograph

      Hi Baker,

      Some securities, such as crude oil, appear to be turning. However, as you alluded to, some global stock indices (e.g., the S&P 500) have been rallying.

      I’m still looking for a Turn to take place for the S&P 500, but in the meantime we appear to be in an uptrend.


    • Bradley Siderograph


      Thanks for the link to the research you shared. Some of it is confirmed by my own research. For example, the article states that “the aspect of Mars and Saturn is a powerful predictor of the anomaly performance. The market performs significantly better when Mars and Saturn are opposed.” In comparing the correlation of the planetary aspects and the S&P 500, I found oppositions between Mars and Saturn to have an overall positive correlation with the S&P 500 (i.e., the S&P 500 tended to be higher when this aspect was taking place). In contrast, a conjunction between Mars and Saturn had a negative correlation with the S&P 500. The article appears to have had several drafts before being made available online on February 11, 2014. Since this date there has been one opposition of Mars and Saturn, which took place on May 14, 2015. On this day the S&P 500 closed at 2121.1, which was within less than 1% of the 52 week high for the S&P 500. The opposition between Mars and Saturn on March 7, 2005 also appears to have taken place very close to a significant high in the S&P 500. If nothing else, this aspect appears to merit further research.

      With respect to sunspots, I believe the idea is that various planetary configurations could result in more or less sunspots and that the resulting level of sunspot activity could influence investor psychology. The “physics” behind the sunspot activity appears to be related to the center of gravity of our solar system (i.e., the “barycenter”) shifting around within the Sun. The NASDAQ top in March 2000 took place very close to a top in the level of sunspot activity, and the bottom in the S&P 500 in March 2009 took place near a low in the level of sunspot activity. Based on what I have seen, sunspot activity appears to be worth considering and merits further research. Arch Crawford’s site lists several resources that cover sunspot activity: http://www.crawfordperspectives.com/astrology.html

      The article you mentioned also discusses the influence of aspects between Jupiter and Saturn. This planetary pair is arguably one of the most important. In his book “Gann’s Greatest Secret,” Al Larson (i.e., “Hans Hannula”) wrote that to a large extent Gann “was simply looking for the Jupiter/Saturn cycle in stocks.” Anyone familiar with Gann’s work knows that he considered far more than one planetary pair, but it appears that this one in particular had especially strong relevance. In this book Larson also stated that Gann kept a manuscript from “Professor Weston of Washington, D.C.” locked in his safe called “Forecasting the New York Stock Market.” This manuscript focuses on aspects between Jupiter and Saturn. Therefore, aspects between Jupiter and Saturn appear to be worth considering.


  • Ted Kirke

    Thank you for providing this very interesting material. I have read that although all of the planets spin, they do not all spin in the same direction. i.e. clockwise vs counterclockwise etc… Is this true and does it factor into the arithmetic of the Siderograph or is it irrelevant?

    • Bradley Siderograph


      Thanks for your comment. As you mentioned, some planets are unusual in a variety of ways (e.g., Venus rotating “backwards” and Uranus essentially rotating on its “side”). The classic Bradley Siderograph formula assigns two sets of weights to planetary aspects: a weight of “1” for planetary aspects classified as “Middle Terms” and a weight of “5” to those classified as “Long Terms” (http://bradleysiderograph.com/formula/). In other words, there are not special weights assigned based on unusual planetary attributes.

      There are plenty of things we don’t know (and even things that we “don’t know we don’t know”), so it’s difficult to definitely say at this point in time the impact that would result from Venus’ “backward” rotation. However, I developed an approach intended to address this uncertainty (i.e., that it could be worth assigning more precise weights based on unique planetary attributes).

      Specifically, the new Advanced Astro Indicator (http://bradleysiderograph.com/advanced-astro-indicator/) is based on weights that are determined by taking into account the historical correlation of each planetary aspect with the historical price performance of the security in question. For example, historically (i.e., from 1950-2015), when a conjunction between Mars and Saturn has taken place, the S&P 500 has tended to experience significant weakness. However, historically there has not been a strong bullish or bearish correlation between the performance of the S&P 500 and conjunctions between the Sun and Mercury. Therefore, the Advanced Astro Indicator uses a relatively high negative weight for a conjunction between Mars and Saturn and only a very small positive weight for a conjunction between the Sun and Mercury.

      The idea is that if a particular planetary aspect has historically been associated with a bullish or bearish trend, it could be useful to have a negative or positive weight for that factor that reflects its actual historical correspondence with a particular security. We should feel fortunate that today’s 21st century computers make it possible to perform these calculations that would have likely taken tens of thousands of man hours to calculate during Donald Bradley’s time.

      I hope that helped!