Hello, and welcome to the Gaotu Techedu third quarter 2023 Earnings Conference Call. All participants will be in listen-only mode. Should you need assistance, please signal a conference specialist by pressing the star key followed by zero. After today's presentation, there will be an opportunity to ask questions. To ask a question, you may press star, then one on your touchtone phone. To withdraw your question, please press star, then two. Please note, today's event is being recorded. I would now like to turn the conference over to Catherine Chen, Head of Investor Relations. Please go ahead.
Thank you, operator. Good evening, everyone. Thank you for joining Gaotu's third quarter 2023 Earnings Conference Call. My name is Catherine, and I'll help host the Earnings Call today. Gaotu's Earnings release for the quarter was distributed earlier and is available on the company's IR website at ir.gaotu.cn, as well as through PR Newswire services. Joining the call with me tonight from Gaotu senior management team is Mr. Larry Chen, Gaotu's Founder, Chairman, and Chief Executive Officer, and Miss Shannon Shen, Gaotu's Chief Financial Officer. Larry will first provide the business highlights for the quarter, and then afterwards, Shannon will discuss our financial performance in more detail. Following their prepared remarks, we'll open the floor to questions from analysts.
Before we begin, I'd like to remind you that this conference call will contain forward-looking statements made under the safe harbor provision of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements are based upon management's current beliefs and expectations, as well as the current market and operating conditions. They involve known or unknown risks, uncertainties, and other factors, all of which are difficult to predict, and many of which are beyond the company's control, and may cause the company's actual results, performance, or achievements to differ materially from those contained in any forward-looking statements. Further information regarding this and other risks is included in the company's public filings with the U.S. SEC. The company does not undertake any obligation to update any forward-looking statements, except as required under applicable law. During today's call, management will also discuss certain non-GAAP measures for comparison purposes only.
For a definition of Non-GAAP financial measures and reconciliation of GAAP to Non-GAAP financial results, please refer to our Third Quarter Earnings release published earlier today. As a reminder, this conference is being recorded. In addition, a live and archived webcast of this conference call will be available on Gaotu's IR website. It is now my pleasure to introduce our founder, Larry. Larry, please.
Good evening and good morning, everyone. Thank you for joining us on Gaotu's third quarter 2023 earnings conference call. I would like to take this opportunity to express my gratitude to all of you for your interest in support of Gaotu and the broader education industry. Before I start, I would like to remind everyone that all financial figures discussed today are quoted in RMB, unless stated otherwise. Benefiting from the rising needs of students, our business continues to focus on the stages in students' life cycle, where their learning capability is at its strongest, and we aim to meet their learning needs and enhance learning efficiency by continuously enriching product offerings and delivery formats.
After the first nine months of operation optimization and rapid iteration in 2023, we are currently focused on defining clear development directions and charting a well-defined path forward, dedicated to building up our core organizational competitiveness and continuously delving into new business initiatives. We will invest in areas that are strategically important for the company's success, continue to refine products and services for non-academic tutoring services, traditional learning services, and educational services for college students and adults, and build a resilient organization and a robust pool of talent. In the third quarter of 2023, our net revenues grew 30.2% year-over-year to CNY 789.4 million, and our gross billings reached CNY 639.3 million, up 5.3% year-over-year.
Despite a decline in profits due to seasonality and historical operational constraints in 2022, we remain confident in our growth prospects and profitability in the coming year, driven by our constantly improving talent pool, clearly defined growth strategy for each segment and ample cash reserve. In the meantime, we also continued our share repurchase program during the quarter, demonstrating our unwavering confidence in our growth prospects. I will now discuss our business highlights from the third quarter across five aspects. First, putting students and the users first, we continued to invest in our educational products, teaching quality and learning services. For our non-academic tutoring services and the traditional learning services, we've further expanded our knowledge graph, optimized our product matrix, and ensured the precise alignment between students' needs and the courses we offer.
Following our year of continuous refinement, the curriculum and services of our non-academic tutoring services have gained the trust of both of our users and the market as a whole. We noticed a significant improvement in indicators that reflects our teaching quality and learning results, such as the retention rate. In terms of traditional learning services, revenue achieved a year-over-year growth of over 40% in the third quarter. We broadened our variety of class offerings and teaching products to better address the diverse needs of our existing students. Since , the dual teacher online large class, we have introduced new offerings, including personalized learning services, which have enhanced the scalability and sustainability of our portfolio, as well as met the demands of students at all levels. Second, anchoring on our effective growth strategy, we further optimized our organizational structure to create a more dynamic enterprise.
Since the second quarter, we have strategically scaled back certain business lines within our educational services for college students and adults to focus on areas with high demand and rapid growth. This segment showed promising signs of a turnaround in the third quarter, trimming its losses by nearly 100% by focusing on high quality content and word of mouth referrals to drive customer acquisitions, as well as enhancing our competitive advantage in terms of service quality. Third, we intensified our efforts to onboard and cultivate outstanding professional talents to expand the breadth and depth of our talent pool. A cohesive and motivated team is the driving force behind our sustainable growth. Building a team of exceptional and skilled employees, and accumulating and iterating on best practices will enable us to consistently replicate our success and drive further business expansion.
Since our business restructuring, we have prioritized the expansion of our talent pool and brought in a number of seasoned industry veterans. Their sophisticated perceptiveness and successful track records have proven highly beneficial to the development of our business. Meanwhile, we initiated a strategic program called Gaotu Talent Fostering Program for the 2024 full recruitment season in collaboration with leading targeted universities. The program allows us to pre-screen top-notch candidates and provide them with the opportunity to gain insight into the industry, so as to deepen mutual understanding and increase talent acquisition efficiency. Fourth, we concentrated on enhancing customer acquisition ROI by diversifying our acquisition channels and fortifying our competitive edge in content-driven strategies, so improving the overall health of our business model.
Through a combination of initiatives, including leveraging short-form video, live streaming, and book sales, expanding our offline presence, and engaging in private traffic, we aim to improve our acquisition efficiency. In particular, we have set up multiple offline centers for postgraduate entrance exam preparation business and overseas study-related services. These centers enable us to acquire customers and deliver services in an online or offline format, which not only improve the customer acquisition efficiency and service delivery quality, but also enhance our brand visibility. Lastly, we have strong confidence in our company's future growth and development. As of November 20, 2023, we had repurchased a cumulative total of approximately 4.2 million ADSs, and our share repurchase plan adopted in November 2022.
In addition, our board of directors today authorized the upsizing of our existing share repurchase program, pursuant to which we may repurchase up to $80 million worth of ADS through November 22, 2025. We will continue to promote our long-term repurchase program to enhance our long-term shareholder value. We see tremendous growth potential for Gaotu, and are confident in our ability to deliver high quality services and efficient operations through our ongoing efforts to improve customer acquisition efficiency, refine our educational products and services offerings, and fostering rapid growth of our talent and organizations. These initiatives will put Gaotu on the fast track to growth. Thank you very much. This is the end of my prepared remarks. Now, I will pass the call over to our CFO, Shannon, to walk you through the financial and operational details of the quarter.
Thank you, Larry, and thank you everyone for joining our call today. I will now walk you through our operating and financial performance for the third quarter of 2023. Please note that all financial figures discussed today are quoted in RMB terms, unless otherwise stated. The company maintained growth momentum during the third quarter of 2023. Net revenues increased by 30.2% year-over-year to CNY 789.4 million, while gross billings increased by 5.3% year-over-year to CNY 639.3 million. We maintained a strong cash position, which was CNY 180.6 million higher than that of the same time of last year. This highlights the ample resources we have to continue driving the development of our business.
Educational services targeted the group of students from primary to high school, demonstrate salient seasonality, and the third quarter coincides with summer vacation, making it the peak season of the year for online customer acquisition. Operations need to be aligned with school schedules to capitalize on a limited window of opportunity for acquiring new customers. Coordinating our efforts also allows us to benefit from economies of scale and maximize operational efficiency and ROI. During the period, we could allocate marketing expenses and tutors in line with market demand. As such, our selling expenses typically peak for the year during the third quarter, notably impacting our overall profitability. To align with school schedules, the second and fourth quarters have been designated as our main customer retention seasons, during which gross billings are notably higher when compared to the first and the third quarters.
Throughout this quarter's summer enrollment period, we observed robust learning demand from students. This also puts a higher demand on our ability to adapt and fine-tune operations in response. We plan to enhance the effectiveness and efficiency of our marketing efforts in the following three ways. First, in terms of tutor recruitment, we are taking a more proactive approach to acquire campus talents. For the 2024 fall recruitment season, we initiated a strategic program called Gaotu Talent Fostering Program, in collaboration with leading targeted universities and normal universities. As the project deepens, candidates can engage with us and experience our culture from day one, completing the two-way fostering and selection process. It also allows us to fully grasp the recruitment progress and result in a timely and accurate manner in order to align with customer acquisition schedules.
Second, on the market front, we will continue to expand our presence across a diverse range of innovative, content-driven customer acquisition channels, from short video platforms and live streaming platforms to proprietary channels such as on-campus seminars. At the same time, we aim to improve our ROI by expanding and refining our customer profile, which could help boost our effectiveness at acquiring high-quality leads. Lastly, on the technology field, we will enhance our operational efficiency and agility by leveraging advanced AI technologies to empower internal teams across tutoring, research, sales, and customer services. Next, I will walk you through the progress we have made during the quarter. Learning services contributed over 95% of net revenues.
Breaking it down, approximately 70% of total revenues came from non-academic tutoring services and other traditional learning services, representing an increase of over 40% year-over-year, an increase and solidifying this segment's role as a key driver of our business. Our non-academic tutoring services help students develop independent thinking and problem-solving skills, and spark their passion for learning through engagement, engaging content. After nearly 2 years of refinement and multiple iterations, we have made considerable progress in fine-tuning our product offerings and making it more sustainable and scalable. The segment recorded middle double-digit growth year-over-year in the quarter, and is expected to achieve high double-digit annual growth for the full year, underscoring its position as a key revenue driver. The other crucial component of our learning services is educational services for college students and adults, which accounted for around 25% of total revenues during the quarter....
We made strategic adjustments to this business segment by discontinuing certain services and investing in areas with huge market potentials and a rapid growth rate. During the quarter, as we draw organic growth through innovative customer acquisition strategies and word-of-mouth referrals, the remaining services significantly reduced the losses by nearly 100% year-over-year. Within the segment, the postgraduate entrance exam prep business saw a year-over-year increase of more than 25% in both net revenues and gross billings. Some of our overseas test prep and overseas study consulting businesses achieved triple -digit year-over-year growth in both net revenues and gross billings. I will now present our financials in detailed numbers. Our cost of revenues this quarter was CNY 218.1 million. Gross profit increased 30.6% year-over-year to CNY 571.3 million, and gross profit margin was 72.4%.
Total operating expenses during the quarter increased 32.3% year-over-year to CNY 670.8 million. Breaking it down, selling expenses increased 29% year-over-year to CNY 434.4 million, accounting for 55% of net revenues. This was primarily attributable to our increased marketing investments to address the robust demand during the summer season. Moving on. Research and development expenses increased 22.6% year-over-year to CNY 130.6 million, accounting for 16.5% of net revenues. This was primarily attributable to increased investment in AI-related fields. General and administrative expenses increased 66.4% year-over-year to CNY 105.8 million, accounting for 13.4% of net revenues. Loss from operations increased 43% year-over-year to CNY 99.5 million, and operating margin was -12.6%.
Non-GAAP loss from operations was CNY 83.6 million, and non-GAAP operating margin was -10.6%. Net loss narrowed 6% year-over-year to CNY 57.7 million, and net income margin was -7.3%. Non-GAAP net loss was CNY 41.7 million, and non-GAAP net income margin was -5.3%. Our net operating cash outflow was CNY 209.9 million. Turning to our balance sheet. As of September 30, 2023, we held CNY 885.6 million in cash, cash equivalents, and restricted cash, along with CNY 1.6 billion in short-term investments and CNY 1.1 billion in long-term investments. This comes out to a total approximately CNY 3.5 billion, CNY 180.6 million higher than the same time of last year.
As of September 30, 2023, our deferred revenue balance was $761.3 million, which primarily consists of tuition received in advance. It is worth mentioning that on November 22, 2022, our board of directors authorized a share repurchase program of up to $30 million over a 36-month period. As of November 20, 2023, we have repurchased an aggregate of approximately 4.2 million ADS for approximately $10.8 million from the open market. Moreover, we are pleased to announce that our board today authorized upsizing of existing share repurchase program to $80 million, which demonstrates our unwavering long-term confidence in our growth prospects.
Larry also purchased approximately 0.88 million ADS in 2023, using his personal funds to demonstrate management's unwavering commitment to the original aspiration to education. Going forward, the company will keep to its original goal of addressing user needs and enhancing learning outcomes in order to create sustainable long-term value for its customers and shareholders. Before I provide our business outlook for the next quarter, please allow me to remind everyone that this contains forward-looking statements, which involve risks and uncertainties, which are beyond our control and could cause the actual results to differ materially from our predictions.
Based on our current estimates, total net revenues for the fourth quarter of 2023 are expected to be between CNY 668 million and CNY 688 million, representing an increase of 6.1%-9.3% on a year-over-year basis. This concludes my prepared remarks. Operator, we are now ready for the QA session. Thank you, everyone, for listening.
Yes, thank you. At this time, we will begin the question and answer session. To ask a question, you may press star, then one on your touchtone phone. If you are using a speakerphone, please pick up your handset before pressing the keys. To withdraw your question, please press star, then two. At this time, we will pause momentarily to assemble the roster. The first question comes from Yiwen Zhang with China Renaissance.
Hey, management. Thanks for taking my question. A s we know, summer is a key time for student enrollment. C ould you discuss more on details of what was our strategy, and then give us an update on how does our enrollment perform during the summer? Thank you.
Thanks, Yiwen. Thanks for your question. T he financials of Q3 partially reflected the operations during the summer break. In terms of the revenue growth, we have maintained an overall growth rate of over 30%. Our revenues primarily consist of educational services, which is further divided into non-academic tutoring services and traditional learning services, and learning services for college students and adults. A s for the learning services for college students and adults, like I mentioned the last quarter and mentioned in my prepared remarks, there is a strategic shift. The strategy has evolved from scale expansion to a sequential emphasis on profitability. So under this strategic direction, we have gradually adjusted and phased out some unprofitable operational units. So the revenue from this segment grows slower in Q3 as compared to the same period of last year.
In last year, I mean, in the 2022 third quarter, learning services for college students and adults actually contributed to over 3% of our total revenue, which has somewhat influenced our revenue growth rate for the third quarter of 2023. Also, this is the same dynamic in the fourth quarter of 2023. That's why we see, like, our revenue guidance was around or less than 10%. However, if we exclusively examine the income growth of our K-12 related business, which includes non-academic tutoring services and traditional learning services, it still maintained over 40% year-over-year increase. We have observed strong demand from customers during the summer break. The availability of high qualified service providers, which is capable of delivering high quality courses, has been limited.
As a result, our revenue has maintained a relatively high growth rate in the Q3. In the third quarter, our Gross Billings, however, the growth rate was approximately 5%. The primary drivers were in the K-12 business, and the growth rate lagged behind the revenue growth rate, mainly due to two reasons. Firstly, our traditional business is a major contributor to the Gross Billings growth. Actually, the new customer acquisition efficiency during the summer break was overall impressive and drove a meaningful year-over-year increase, but there was a significant decrease in the supply of next grade students compared to last year. Therefore, the scale of Gross Billings grow more slowly than the revenue.
Secondly, faced with strong demand during the summer break, we did not reserve a sufficient supply of tutors, resulting in situations where, at some point, customer demand could not be fully met, leading to a less level of gross billing collection. A fter self-reflecting and to achieve a higher growth rate next summer, I mean, in 2024, we have implemented a few measures. On one hand, within the boundaries and constraints of policy compliance, we proactively acquired and operated private traffic to attract and engage the students from the middle school, especially for next grade students, by providing services related to like, learners planning and psychological consulting, and so on.
We aim to build up a pool of highly engaged students in the middle school, and we expect the pool in the next spring to reach or even exceed last year's level. And so that can kind of, like, provide a sufficient student pool for our next summer's gross billing growth. And on the other hand, during this year's fall recruitment process, like I just mentioned and Larry also mentioned, we collaborated with top schools and some normal institutions engaging in earlier, and we do two-way communication with graduates, with those new graduations next year to improve recruitment efficiency and better meet the demands of tutors supply for the next summer break. T his actually worked.
As of the current progress in the fourth quarter, the gross billings growth rate of our K-12 business has rebounded to nearly 30% on a year-over-year basis. T hat's the details we really want to share for the summer vacation, and hope that addressed your question, Yiwen.
Yeah, that's very clear. Thank you.
Thanks.
Thank you. This concludes the question and answer session. I would like to return the call to Catherine Chen for any closing comments.
Thank you, operator. Thank you everyone for joining the call today. If you have any further questions, please don't hesitate to contact our investor relations department or our management via email at ir@gaotu.cn directly. You are also welcome to subscribe to our news alert on the company's IR website. Thank you very much again for your time. Have a great night.
Thank you. As mentioned, the conference has now concluded. Thank you for attending today's presentation. You may now disconnect your lines.