The National Association of Homebuilders reported a two-point increase in builder confidence in May. The NAHB Housing Market Index reading increased from 68 in April to 70, which was the second-highest reading since the economic recovery started. May's reading exceeded analyst expectations of a flat reading for May. Builder confidence rose as demand for homes continued to rise; this factor overrode builder obstacles including higher prices for lots and ongoing labor shortages. A new tariff on lumber was also expected to dampen builder confidence.