WMT is offering a great entry for the long term here. Free cash flow yield of 6.8%, earnings yield of 5.6% with very low debt, with a 2.94% dividend yield on top make for a solid spot to acquire WMT shares. You can buy here, or buy gradually over a week/month to average your entry.
I'd reccomend either risking a 3.1usd decline, or using no stop and sizing it accordingly to risk 1% of your capital. Alternatively you can sell puts at the money, or at the target, the 80 strike Dec 16 puts pay a hefty premium which makes break even possible close to these prices. Profit is similar to being long shares, but you get cash up front which you can use for other trades.