KEY POINTS
  • Here are some of the biggest movers in the premarket.
  • AutoZone shares popped on stronger-than-expected earnings.
  • Toll Brothers' stock slipped on weaker-than-forecast quarterly results.
  • Snap got a big upgrade from Barclays.
NYSE Traders

Check out which companies are making headlines before the bell:

AutoZone — The auto-parts retailer posted better-than-expected quarterly earnings and revenue, sending its stock nearly 7 percent higher in premarket trading. Same-store sales — a key metric for retailers — rose 2.3 percent in the quarter, also surpassing estimates.