Quote from: wheeler on October 20, 2013, 12:33:07 AM

Is there any established way to take a short position on mining return... Example: sell 100GH/s Nov13 @ BTC / GH/s

I see you can get long on cex.io, but this isn't really a GH/s "futures" contract, rather physical delivery, which makes it hard to short (i.e. you need to mine to get the GH/s to sell).

Looks like OTC will be the only option, but perhaps someone knows better...?

The Deprived Mining Speculation (DMS) set of securities (https://bitcointalk.org/index.php?topic=228327.0) has a mechanism that allows shorting of mining-contracts. Currently it's not trading due to the BTCT shutdown, but latest word is that it is due to be relisted on a brand new exchange. Needless to say, shorting mining with this instrument has been very profitable since the launch back in june.