Basically what I did was close out my position on a 'short' call that I have underlying shares of, or bought back a call. A call is the right of the holder to buy the stock at the strike price. Shorting a call of a stock that you have its underlying shares of is also called writing a covered call.

One call is worth 100 shares of the underlying stock. In this case, I have 100 shares of LDK, and I wanted to hedge my long position with a quasi-short position- being a covered call.  When I wrote the call (I gave the right for someone to buy my 100 shares of LDK by purchasing them at the strike price). In return, I get a premium for it. As options expiration gets closer, the premium in calls goes down as there is less time for the actual stock price to go up. 

Today, I bought back my covered call because I felt LDK was going to go higher after the open, which it didn't. I will probably write another covered call when LDK spikes again before expiration this Friday.

For more thorough information, checkout  http://www.investopedia.com/terms/c/coveredcall.asp on covered calls.