Shares of Fitbit (NYSE: FIT) jumped on Wednesday. The stock rose as much as 9.3%, but finished the trading day up 7%.
The increase in the fitness tracker company's stock price came just before its third-quarter earnings release, which occurred after market close on Wednesday.
Some of the stock's gain on Wednesday may have been due to investors making last-minute bets that the company would beat expectations when it reported third-quarter results. But the primary driver for Fitbit's stock was likely an overall gain in the stock market, especially for high-growth tech stocks.
Gains in the tech sector were evidenced by a 2% gain in the tech-heavy Nasdaq Composite . Though Facebook 's solid earnings may have helped spark optimism for other tech stocks, the gain also simply represented a rebound. The Nasdaq Composite declined about 9% in October, even when including Wednesday's rise.
For what it's worth, investors who bought Fitbit on Wednesday appear to have made out well. The stock is up 10% in after-hours trading as of 5:29 p.m. EDT, following a quarterly update that featured better-than-expected revenue and earnings per share.
In its third-quarter update, Fitbit reaffirmed its full-year revenue guidance for $1.5 billion. In addition, the company guided for fourth-quarter revenue to be "greater than $560 million, with device sales down and a higher average selling price."
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Daniel Sparks has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Facebook and Fitbit. The Motley Fool has the following options: short November 2018 $155 calls on Facebook and long November 2018 $135 puts on Facebook. The Motley Fool has a disclosure policy .