What happened Shares of Five9 (NASDAQ: FIVN) gained 17% in October, according to data from S&P Global Market Intelligence. The cloud-based customer contact company got a boost from an earnings and guidance beat at the end of the month. ^SPX data by YCharts. Five9 published its third-quarter results after the market closed on Oct. 29, posting better-than-anticipated sales and earnings. The company posted adjusted earnings of $0.27 per share on revenue of $112.14 million, topping the average analyst estimate's call for earnings of $0.18 per share on sales of $101.1 million. Image source: Getty Images. So what Five9's third-quarter sales climbed roughly 34% year over year, and the company's adjusted gross margin came in at 65.4%, up from 64% in the prior-year quarter. Adjusted earnings per share in the quarter were up 35% compared with Q3 in 2019. The company also paired the earnings release with an announcement that it would be acquiring Inference Solutions, a provider of virtual agent software. The terms of the deal have yet to be disclosed. Now what Five9 stock has continued to gain ground amid momentum for the broader market in November's trading. The company's share price is up roughly 14% in the month so far. FIVN data by YCharts. Five9 is guiding for sales to come in between $114.5 million and $115.5 million in the fourth quarter, good for 24.6% growth year over year at the midpoint of the target. Adjusted fourth-quarter earnings are projected to be between $0.22 and $0.24 per share, ahead of the consensus target for per-share earnings of $0.22 at the time of the company's Q3 release. The company has a market capitalization of roughly $10.9 billion and is valued at 25.8 times this year's expected sales. 10 stocks we like better than Five9When investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Five9 wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of October 20, 2020 Keith Noonan has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Five9. The Motley Fool has a disclosure policy.Source