what stock market ought to be irrelevant

There are good stocks in bear market.

There are also bad stocks in bull market.

Buffett has said:"As far as I am concerned, the stock market doesn't exist. It is there only as a reference to see if anybody is offering to do anything foolish."

If you want to worry about something, worry about whether the company's business is doing well.

Pick the right stock and the market will take care of itself.