Why Buy Silver?
Like gold, silver is money. It is also an irreplaceable industrial metal; however, unlike gold, silver is used up in the many processes for which it is 
essential. Rapid developments in technology mean that silver’s industrial applications are growing on a daily basis.
In 1980, even with the silver price at a historical high, four billion ounces of aboveground silver existed. Today, because of silver’s dual role, only one billion ounces exist.
Reasons to own silver include:
Silver has a Historic Role as a Monetary Metal
Silver, like gold, is a monetary metal and a safe haven, and it cannot be debased like modern fiat paper and electronic currencies. Throughout history, silver has been used as money in more regions and countries than gold. Like gold, silver meets the criteria for universal money: It can be easily divided into equal parts, it is found worldwide and it is extremely durable.
Silver is Undervalued
Silver remains historically undervalued, even more so than gold. In 1980, when record amounts of silver were stockpiled, the gold:silver ratio was 16:1. At the time this was written, the ratio was fluctuating around 73:1. At a 16:1 ratio, silver today would be over $100 an ounce when compared to the price of gold.
While there are countless websites providing the current ratio, it’s relatively painless to calculate on your own. Simply take the price of gold, divide it by the price of silver and Voilà! You have the gold-to-silver ratio.
Silver's Short Position
One of silver’s most unique features is its disproportionately large short position on the COMEX, a position that has yet to be covered. Although “commercial traders” in most markets are commercial producers who wish to guarantee a fixed price for their corn or their copper, in the precious metals markets, bullion banks hold the largest short positions.
Currently, the COMEX short position of the eight largest traders represents one-third of the total one billion ounces of aboveground silver bullion in existence.
Silver Used in Industrial Processes
Silver has industrial uses that no other material can replace. It is malleable and ductile, and is capable of being formed into fine jewelry, hammered into thin sheets and extruded into microscopically thin wires. It is a superior conductor of heat and electricity. It is highly reflective, which is why it is used in mirrors. It also has antimicrobial properties that make it ideal for surgical applications, and as an additive to everything from paint to clothing.
Silver Demand
Because of its dual role, silver has never faced greater demand than it does today. In 2014, total demand grew to the fourth-highest level recorded since 1980, and that growth can be attributed to industrial demand, which accounted for 56 percent of physical silver demand. Globally, China, Taiwan and India continue to show high levels of demand in both industrial and jewelry fabrication.
Silver Supply
Although silver mine supply rose 3.5 percent to 868 million ounces in 2014, the yearly amount of mined silver has been less than demand for the last fifteen years. There are very few pure silver producers; 20 percent of silver is derived as a by-product of mining other metals. This could be problematic in the event of an economic slowdown. Currently Mexico leads the world in silver production, followed by Peru.
We can see that silver has the monetary properties of gold combined with strong and growing industrial uses. These attributes make it the perfect portfolio complement to gold.