According to zero hedge the “silver fix” ends 8/14/2014 at 12:00 noon

Precious metal investors have been patiently awaiting the end of the London Silver Fix, which is set to end on August 14th. We knew that something would be ushered in to replace it, but until now, the community has been left in the dark.

The lights have been turned on and the darkness exists no more. It was only a matter of time before the system scrambled together a new system to replace the one that stood for over a hundred years. The “powers that be” could not simply stand by and allow the free market to propel the price of silver to its true fair value, which undoubtedly would be much higher than current levels.

Those taking up the torch, are the CME Group and Thomson Reuters, who will begin administering the new system on August 15th.
The name, which was clearly chosen to sound much less like an organization that’s sole cause is not blatant manipulation (unlike the London Silver Fix), is the “London Silver Price”.

The International Swaps and Derivative Association (ISDA) made the following announcement:

On 14 May 2014, the London Silver Market Fixing Limited announced that it would be winding down the administration of the London Silver Fix on 14 August 2014. Further to a market consultation run by the London Bullion Market Association, an alternative London daily silver price mechanism, the London Silver Price, is expected to be available from 15 August 2014, such price to be administered by CME Group and Thomson Reuters.