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The imminent arrival of a new boss can be the time to turn bearish on a company's shares, says Mr Bearbull

Be wary when a company's boss says a deal will enhance earnings, warns Mr Bearbull

It's not fair that illusory investment gains should be subject to taxation, says Mr Bearbull

Don’t holler if your investment performance fails to beat the market, says Mr Bearbull

Business plans are as much about spin as substance, says Mr Bearbull

The crisis triggered by Northern Rock is a struggle between financial theory and game theory - and game theory is winning, says Mr Bearbull

It still looks all over for Northern Rock's shareholders, says Mr Bearbull

The volatility of a share price helps us to be patient in the search for good investments, says Mr Bearbull as he unearths some more possible candidates for his portfolios - and sells one constituent for a 50 per cent gain

Take away belief and you are left with problems, says Mr Bearbull

Amid the market mayhem, Mr Bearbull sees opportunities: What remains unclear is whether the markets can calm down without the fearsome discipline of a full-scale banking crisis.