"This is not a material change in guidance, " says Morris Mark of Mark Asset Management, which also holds AOL Time Warner shares.

FORBES: Magazine Article

Mr. Mark said his firm sold a "material" amount of Apple stock last year, but lately has been holding or moderately increasing its position.

WSJ: Apple Defends Position on Cash

Instead, the team modified a substance known as Powder Suspension, a thick, tar-like material, and found that it produced a clear, high-quality mark on the smooth-surfaced food items such as onions, apples and tomatoes.

BBC: Fingerprint on food