I was considering this spread sell gold futures and buy equal amount of silver. As shorting gold is a little scary for the long term this spread may be a good substitute.
In order to hedge your short GLD position, you would have to buy 5.5555 SLV to achieve a hedged position. We calculate this by dividing 1 by the hedge ratio (.18), which gives us 5.555. What this means is that if SLV moves 18 cents for every dollar that the GLD moves, then if you bought 5.55 of the SLV, against one GLD, the $1 loss in gold would be cancelled out by the $1 gain (.18 x 5.55) in your long SLV position.
You can also do this with the futures (of course the ratio would be different ie. London or US exchange?)
In order to hedge your short GLD position, you would have to buy 5.5555 SLV to achieve a hedged position. We calculate this by dividing 1 by the hedge ratio (.18), which gives us 5.555. What this means is that if SLV moves 18 cents for every dollar that the GLD moves, then if you bought 5.55 of the SLV, against one GLD, the $1 loss in gold would be cancelled out by the $1 gain (.18 x 5.55) in your long SLV position.
You can also do this with the futures (of course the ratio would be different ie. London or US exchange?)