Does physical silver have a symbol that can be tracked with a stock program?

The closest thing to a trading symbol for Silver is the I shares Silver Trust ETF traded as symbol SLV. It is shares in a fund that holds actual silver and the trading price closely mirrors silver. The other alternative is the Commoditites market Silver Futures contracts for future delivery traded in either 5,000 ounce full or 1,000 ounce mini contracts. Prices there vary by time of future delivery so it is not exact to the trading price of silver.