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• If you are wondering whether Builders FirstSource at about US$74 per share looks cheap, expensive, or somewhere in between, a closer look at its valuation tools can help clarify the picture.

• The stock has been volatile recently, with a gain of 5.3% over the past week, a decline of 18.2% over the last month, and a year to date fall of 29.1%, contributing to a 31.6% decline over the past year and a 35.8% decline over three years, even though the five year return stands at 66.5%.

• These moves sit against a backdrop of ongoing interest in the US housing and construction supply chain, where sentiment can shift quickly as…