It may depend on the specific brand and version of the shingles used. Here is an advisory from GAF a major manufacturer:
In it they say:
Shingles should not extend more than 3/4” (19 mm) past the drip edge. If shingles overhang the edge of the roof by more than 3/4” (19 mm), then they are not supported and may crack and break off. In addition, the wind resistance at the roof edge may be compromised.
Here is another manufacturer's information from:
Asphalt shingles should overhang the exterior edge of the drip edge by ¼ to ¾-inch.