The most successful tech IPO of the year just rocketed up another 10%

Twilio, the tech company that had a blockbuster initial public offering last week, is on fire again.

Shares of the company, which makes communications software, were up as high as 21% in midday trading, at $33 — a new high. They finished the day up about 10%.

The broader market is enjoying a bounce-back on Tuesday, after the massive sell-off triggered by the Brexit vote last week. But Twilio's pop is much bigger than the Nasdaq Composite's 60 point increase, which finished up about 2%.

And Twilio's gains on Tuesday exceeded its lost ground, about 5%, over the past couple of days.

There's no immediate news about Twilio's business. On Monday, CNBC "Mad Money" host Jim Cramer endorsed the company, calling it a "unicorn with real value" and noting that the market "may be willing to pay up for growth again."

Here's what the spike looked like early in the day.

Twilio

(Yahoo Finance)

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