@crypto_coiner Basically, that big sell order at 8 microbtc is an arbitrage (in my opinion). Someone caught a ton of falling knives on Bter and put them up for sale on polo. At least that’s what I think. That someone is incredibly smart.
Right now, we have sell pressure on bter and buy pressure on polo. Every month or so that flips and we get buy pressure on bter and sell pressure on polo. If you ride the waves, you can easily make a lot of money.
There is 1 btc up for sale on bter at 7.4 micro btc (https://bter.com/trade/nsr_btc). If I had money I would buy that and put it up on polo at 7.7 microbtc. That would be my guaranteed win. I would take the rest of the money and put it up as buy orders under 7.4 microbtc. This will most likely cause the polo price to go up, because people on polo are watching what happens on bter. That means that 7.7 will almost definitely get bought.
If I were buying to hold, I’d just go ahead and buy some of that big ol 4 btc order at 7.5 microbtc on bter, then maybe put some orders up around 7 microbtc just for kicks. Always be wary of exchange hacks though.