In trading on Tuesday, shares of A.O. Smith Corp (AOS) crossed below their 200 day moving average of $44.94, changing hands as low as $44.92 per share. A.O. Smith Corp shares are currently trading trading flat on the day. The chart below shows the one year performance of AOS shares, versus its 200 day moving average:Looking at the chart above, AOS's low point in its 52 week range is $33.35 per share, with $55.18 as the 52 week high point — that compares with a last trade of $45.65. According to the ETF Finder at ETF Channel, AOS makes up 2.71% of the SPDR S&P Homebuilders ETF ( XHB) which is trading higher by about 1.4% on the day Tuesday.