How far back in time do you have to go for that ratio?
This is from the Montana Rarities page:
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One of the more interesting long term strategies for investing in precious metals is to trade on the gold/silver ratio.
The strategy is to buy silver with gold when silver is cheap, and then reverse the trade, buying gold with silver, when gold becomes cheap in terms of silver. The ratio of silver to gold has ranged between 40 and 110 over the past 20 years, and currently sits around 39:1, below the 40:1 that has marked the end of the range.
So for example you would trade gold for silver when one gold ounce buys 80 silver ounces (the ratio is 80:1). Then when the ratio drops to 40 to one we swap back our 80 silver ounces for 2 ounces of gold, doubling our gold holdings.
Understanding the gold/silver ratio makes possible very profitable arbitrage refinements to the strategy.
Timing is important, when the ratio is relatively high, we favor silver in new purchases. When the ratio is relatively low, we favor gold.
Buy the form of silver that offers a possibility of extra profit. When the silver market gets hot, new investors will be buying US 90% silver coin. That sometimes drives up the premium to 30 or 40% above the silver value. At that point you swap 90% coin for one ounce rounds or 100 ounce bars, and convert that premium to extra ounces of silver.
Play the ratio. When the ratio is high, swap gold for silver, when the ratio drops, swap silver back into gold.
There are risks, you don't know if the ratio will go beyond historical norms, and of course there is the possibility that both gold and silver decline in value.
http://www.montanararities.com/prmesw.html
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As you can see, that article was published when the ratio was 39. Now we are at 33. Something has to change.
I've been doing the monthly plan with them for quite a while. I get $150 worth of silver automatically every month. But at these prices, soon I'm going to only be getting three ounces a month! They have a gold monthly plan so maybe it is time to switch?
Gregg