Today the autoparts companies got hammered because of the fantastic news delivered by ORLY seekingalpha.com/news/3276986-auto-parts-stocks-watch-oreilly-warning GPC stood it's ground at the 38.20% retracement fibionacci level, at which the market already agreed it was a good entry point 3 times on the last 4 months. If the terrible news from today didn't make it fall below this point we have a very strong support level.