John Authers, Columnist

Tech's Bubble of Calm Is Likely to Prove Brief

The surge in options trading suggests there are more shoes to drop.

Apple puts the entire FTSE-100 in the shade.

Photographer: GREG BAKER/AFP/Getty Images

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Is it safe to put a price on technology again? After great excitement, the solemn date of Sept. 11 proved to be the first trading day of the month when the tech-heavy Nasdaq-100 didn’t move by more than 1%, in one direction or another: