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training_data/curated/text/4a2ae40ca8e23d9c1059eaf696d8d1bc232b71f27925c6f77e8912a9d95af227.txt

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+If Wal-Mart moves lower, the delta gets more positive, racking up losses
+at a higher rate. To add to Pete’s woes, theta becomes less of a benefit as the
+stock drifts lower. At $47 a share, theta is about flat. With Wal-Mart trading
+even lower than $47, the positive theta of the August call is overshadowed
+by the negative theta of the September. Theta can become negative, causing
+the position to lose value as time passes.
+A big move to the upside doesn’t help either. If Wal-Mart rises just a bit,
+the −0.323 gamma only lessens the benefit of the 0.563 delta. But above
+$50, negative gamma begins to cause the delta to become increasingly
+negative. Theta begins to wither away at higher stock prices as well.
+The place to be is right at $50. The delta is flat and theta is highest. As
+long as Wal-Mart finds its way up to this price by the third Friday of
+August, life is good for Pete.