25% of BP's market cap disappears in 4 days of trading

On June 4th, when we broke the story of the incredible rate at which BP's liability is increasing, the market valued BP at $122.6 billion USD.  Today, less than a week later on June 9th, their market cap has plummeted about 25% to $93.68 billion USD.  Today's announcement from U.S. DOI Secretary Ken Salazar that the government is about to revisit its estimates of the BP's gusher's flow rate, appears to have triggered today's one-day market decline of 15%.

The rest is probably due to a combination of factors including their promising but less than perfect attempts to cut and cap the well in addition to reports over the past few days that BP may need to begin pursuing a strategy of sequestering its massive Deepwater Horizon liabilities and shopping itself around for acquisition.

In general, you don't want a graph of your stock price over a week to look like this:

Perhaps that's why we're starting to see articles from the wags on Wall Street with titles like "BP May Not Make It" and "BP is Toast!"