What happened Shares of audio chip designer Cirrus Logic (NASDAQ: CRUS) gained 11.3% in September 2020, according to data from S&P Global Market Intelligence. That's a curious performance in a month when tech stocks generally headed lower and Cirrus' largest customer took a 10% haircut. A pair of bullish analyst reports set Cirrus apart from those negative market trends. So what Cirrus started September on a bearish trajectory, absorbing the same corrections as the rest of Silicon Valley on risk-reduction days like Sept. 3. The drop reversed on Sept. 10 when Craig Hallum analyst Anthony Stoss upgraded Cirrus' stock to a buy with a price target of $70 per share. Ross argued that the sell-off that actually started in August was going too far, presenting investors with an attractive point of entry. Four days later, Barclays analyst Blayne Curtis upgraded Cirrus to equalweight with a $65 price target. His upgrade was based on reasonable share prices and the upcoming 5G smartphone upgrade cycle from Cirrus' largest customer Apple (NASDAQ: AAPL), which accounted for roughly 80% of this company's sales in each of the last three fiscal years. The two upgrades turned Cirrus' stock chart upward right away, and the bullish trend stuck around until the end of the month. Image source: Getty Images. Now what Ross and Curtis essentially repeated the same themes of solid business and undervalued shares that I saw in August's price drop. The stock still looks affordable at 18 times free cash flows and 24 times trailing earnings. In other words, it's not too late to pick up some Cirrus Logic shares at an affordable price. 10 stocks we like better than Cirrus LogicWhen 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 Cirrus Logic 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 September 24, 2020 Anders Bylund has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Apple. The Motley Fool recommends Cirrus Logic. The Motley Fool has a disclosure policy.Source