That's an instant, 35% drop in value.
Earlier today, Mt. Gox halted trading, saying the market needed to "cool down" after a massive sell-off yesterday that at one point resulted in a 61% decline from the virtual currency's peak intraday price of $266.
The problem, according to the exchange, was a massive influx of new users in recent days, causing the trading platform to lag, which sparked a sell-off among skittish traders.
Trading could be volatile. Bitcoin has been trading below $100 on smaller, less liquid exchanges while the Mt. Gox exchange has been closed.