It seems that he arbitrage works even after the 30k wall on Bitstamp was broken.

As i made the math it seems that there would be at least $20 profit per btc, which is pretty decent i guess


EDIT:


If i did the calculations and the math right, it should be something like this:

    Current situation for buying 1 btc:
    price at www.bitstamp.net : $318.93
    fee: 0.44% = $1.7
    total: $317.23


    Current situation for selling1 btc:
    price at www.portbitcoin.com : $328.95
    fee: $1
    bonus code BITRIP293 boost: 5% = $16.4
    total: $342.35



Total profit per 1 BTC = $25.12
Total profit per 10 BTC = $250.12
and so on...