Barron's mentions: Twitter (NYSE:TWTR) makes the cover this week with the company in the middle of the political firestorm. For investors, the bigger issue than the culture debate is that the stock is valued at a sales multiple lower than social media peers. Food suppliers Sysco (NYSE:SYY), US Food Holdings (NYSE:USFD) and Performance Food Group (NYSE:PFGC) are recommended with sales volume slowly recovering. The publication notes that large investors like KKR and Trian Fund Management are taking an interest in the sector.