*UPDATE* : see flic.kr/p/dvDHf2 for 2013 Sep projection from spreadsheet
see also scharts.co/PdWQRZ for live updates of the 52-week trend
now seen 2012 08/aug 22nd : up-ticks in 52-week ROC indicate it's probably time to stack or regret not stacking.
original upload description/april 17 2012
see also chart.ly/rf47bvn
older: flic.kr/p/b3iBqa 2011 dec 27 visual basis & math confirming 277 week ROC pattern
52 and 277 week ROC (rate of change) patterns for gold price action. 277 week pattern holding tight trading channel indications. 52 week mostly following series of triangular patterns indicating +50% (1.5 factor) of price year-over-year or near 0% gains (1.0 factor) in dips. Exception noted with red overlay triangle-shader. 20% to 30% year-over-year gains on 52-week ROC also noted (turquoise around it, darker blue is the channel).
Prices within the dark blue transparent channel are the 52-week model. Prices in the green transparent channel are the 277-week model. Some price-activity will be in both models.