Suppose you buy 100 shares of GHH at $13 in May and would to protect your downside with little or no cost. You would enter a collar by buying one JUN 9 Put at $0.50 and selling one JUN 15 Call at $0.70.
The maximum that you can make is when the stock is at $15. Above 15, the profit on the stock is offset by the loss on the call option that you sold. On the downside, the maximum loss occurs with the stock at or below $10. Below $10, the profit from the put offsets the loss from the stock.
See Resources.