Bitfinex should not be used to gauge the ATH, as with MtGox in its dying days the inability to withdraw fiat means inflated prices for bitcoin as that is the only withdrawal method available to most users of the site. (There is a great arbitrage opportunity if you have a Korean bank account as a result.)<p>I am usually inclined to use btc-e.com as the true value of bitcoin as this is almost always the most conservative but bitstamp is also a good indicator of real price. Saying that bitcoin is reaching new heights on all the exchanges. It is also interesting that this seems to have been spurred along by the gains made by LTC, ETH and DSH, people are slowly leaving them and moving back to BTC which is driving the price up, usually altcoins have risen as a result of increasing attention on BTC.