W.D. Gann was known to use planetary positions to predict future price behavior. We explored this method briefly
here using Ceres' longitudinal position to attempt to predict platinum's price.
Now I would like to use the same method with the S&P and the JupiterMars cycle.
In this method, 0° Aries is assigned the price $0, and $30 is added to each new sign, until $360 is reached at 0° Aries again. Therefore, the point 0° Aries can represent the prices $0, $360, $720, etc. 0° Taurus can take the prices $30, $390, $750, and so on. The values for 0° of each sign is shown in the chart below. This chart can in theory be used for any asset (sometimes with minor adjustment).

Planetary Price 
If we wish to determine the price associated with a planet at, for example, 13° Gemini, then we would add $13 to the prices at 0° Gemini, to arrive at the possible prices $73, $433, $793, $1153, or $1513.
The S&P made a major low on March 6, 2009. In our
previous analysis of this low we saw that there was a heliocentric JupiterMars conjunction the following day near the Nasdaq's 72° harmonic.

3/7/2009: Heliocentric JupiterMars Conjunction   



The conjunction occurred at 8° Aquarius. This gives a planetary price of $308, $668, $1028, etc. The S&P's low on the 6th was $667, just $1 from one of these possible prices.
On August 26, 2009, Mars at 23° Taurus was square Jupiter at 23° Aquarius, giving a price of $1043, $3 more than the reversal high 2 days later.

8/26/2009: Heliocentric JupiterMars Square 
On November 4, 2009, Mars at 29° Gemini was trine Jupiter at 29° Aquarius. Jupiter's planetary price at 29° Aquarius is $1049, $2 more than the closing price that day.

11/4/2009: Heliocentric JupiterMars Trine 
It is not always this easy however.
On May 1, 2011 (a Sunday), there was a geocentric JupiterMars conjunction at 22° Aries near the Nasdaq's 72° harmonic, and the following day the S&P topped at 1371.

5/1/2011: Geocentric JupiterMars Conjunction 
In this case, the nearest planetary prices convert to $1080 + $22 =
$1102 and $1440 + $22 =
$1462, both of which are far from the price that day. So we look to another sign to give us the proper price. Capricorn has a starting price of $1350. Adding $22 gives $1372, only $1 from the high of the S&P that day. Note that the position 22° Capricorn is
square to the position 22° Aries, so sometimes this type of adjustment is necessary.
There are many more examples like this, demonstrating that the S&P is attracted to planetary prices created by JupiterMars aspects, although sometimes it does not work.
Today (Sunday, February 10) Jupiter at 17° Gemini is square Mars at 17° Pisces. Jupiter's planetary price at this location is $1517. The S&P closed at $1517.93 on Friday.

2/10/2013: Heliocentric JupiterMars Square 