
Netflix Content & Stock Trends Dashboard
Netflix 内容和股票趋势仪表板
Tools: Python, Pandas, Plotly, matplotlib, scikit-learn, Dash
Final Project
This project began with a simple question: “Is the quality of movies and TV shows on streaming platforms declining?”
If so, why do companies like Netflix continue to pursue this trend?
Could it be that content quality has little impact on business performance, or is it being sacrificed in favor of broader strategic goals like growth and scale?
To explore this issue with data, I incorporated three key datasets from Netflix:
Netflix Movie & TV Show Data (content production & metadata)
IMDb Ratings Data (quality assessment)
Netflix Stock Price Data (business performance)
As the most prominent streaming platform, Netflix's content strategy shifts may provide insights into broader industry trends.
这个项目源于一个简单的问题:“流媒体平台上的影视内容质量是否正在下降?”
如果答案是肯定的,那为何像 Netflix 这样的公司仍在持续推进这一趋势?
这是否意味着内容质量对商业表现的影响有限,或者,它正被更宏观的战略目标所取代——比如增长规模、市场扩张?
为了以数据佐证这些疑问,我整理并整合了来自 Netflix 的三类关键数据集:
Netflix影视内容数据(内容产量与元数据)
IMDb评分数据(作为内容质量衡量标准)
Netflix股票价格数据(衡量公司商业表现)
作为全球最具代表性的流媒体平台,Netflix 的内容策略变化或许能够为整个行业的趋势演变提供参考与洞察。
Visualizations
Netflix IMDb Score Trend Over Time (Netflix IMDb 评分随时间变化的趋势)
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The average IMDb score of Netflix content has declined steadily since 2015, indicating a possible overall drop in content quality. (Netflix 的内容平均 IMDb 评分自 2015 年后持续下降,说明其整体内容质量可能呈现下滑趋势。)
Movie vs. TV Show Production Trend(电影与电视节目的制作趋势)
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Netflix has significantly increased the volume of content released on its platform since 2015, especially in movies. (自2015年以来,Netflix大幅增加了其平台上发布的内容量,尤其是电影。)
Netflix Content Releases & Stock Price Over Time(内容发布和股价随时间变化)
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There appears to be a positive correlation between the number of content releases and Netflix’s stock price, especially after 2015. This suggests that increasing content volume may have contributed to investor confidence and stock growth.(Netflix发布内容的数量与其股价在2015年后呈现出较强的正相关关系。这可能说明平台内容的快速扩张增强了投资者信心,并推动了股价增长。)
Does Content Quality Affect Stock Volatility? (内容质量会影响股票波动吗?)
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In Netflix’s early years, higher IMDb scores correlated with increased stock volatility (Corr = 0.31), suggesting content quality once influenced investor sentiment.
However, post-2015, this correlation turns negative (Corr = -0.15), implying that broader business factors now outweigh content ratings in driving stock movements.(早期(2010 年前)IMDb 高分内容与股价波动呈正相关(相关系数 0.31),内容质量对市场反应有明显影响。
但在 2015 年后,这种关系转为负相关(-0.15),说明 Netflix 股价更多受平台扩张、营收等因素影响。)
Netflix Annual Hit Shows vs. Stock Price - Long-term (年度热门剧集与股价 - 长期来看)
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There is no clear long-term correlation between the number of hit shows and stock performance. Netflix's stock price continues to rise steadily, regardless of fluctuations in the number of hit releases.(年度爆款数量与股价之间并无明显长期相关性。Netflix 的股价呈现稳定上升趋势,并不直接受每年爆款内容数量的影响。)
Trend of International Content Over Time(国际内容随时间的变化趋势)
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Netflix’s international content ratio surged after 2015, aligning with its global expansion into 190+ countries by 2016. This reflects a strategic shift toward localized content production for global markets.(自2015年起,Netflix 国际内容比例大幅上升,与2016年进入190多个国家的全球扩张节奏一致,体现了其面向全球市场的本地化内容战略转型。)
High-Quality Content Proportion Over Time(高质量内容比例随时间变化)
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The proportion of high-rated content (IMDb ≥ 7.5) has declined over time, especially after 2015, further supporting the trend of diminishing content quality on Netflix. (IMDb 评分高于 7.5 的优质内容比例随着时间推移持续下降,尤其在 2015 年之后,这一趋势进一步印证了 Netflix 内容质量的下滑。)
Movie vs. TV Show IMDb Score Trend(电影与电视剧 IMDb 评分趋势)
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TV shows consistently receive higher IMDb ratings than movies on Netflix. This may reflect higher production quality, more curated storytelling, or more selective viewer engagement.
Additionally, TV shows tend to span multiple episodes or seasons, offering long-term engagement that helps retain subscribers—making them strategically more important to the platform.(Netflix的剧集IMDb评分始终高于电影,这可能说明剧集在质量上更高,策划更精细,或观众评分更具选择性。此外,剧集通常为多集或多季的形式,具有更长的播放周期,更容易吸引用户持续观看与订阅,这也使剧集在Netflix的内容策略中占据更重要的位置。)
Netflix High-Quality Content & Stock Price Over Time(优质内容与股价随时间变化)
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High-quality content (IMDb ≥ 7.5) does not show a strong correlation with stock price movements. This implies that stock performance is more influenced by expansion strategies, market positioning, and subscriber growth rather than consistent critical acclaim.(高质量内容的比例与Netflix股价之间并未呈现出明显相关性,说明平台的市值增长更依赖于市场扩张、订阅用户增长和战略布局,而非单纯内容品质的持续提升。)
Impact of Hit Shows on Netflix Stock - Short-term(热门剧集Netflix对股票的影响 - 短期)
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Despite the success of blockbuster shows (IMDb ≥ 8.0, ≥ 100k votes) , Netflix’s stock price shows no clear short-term jumps.
This suggests that hit content does not significantly impact stock prices in the short term.(尽管推出了多部高评分爆款剧集(IMDb ≥ 8.0,投票≥ 100k ),Netflix 的股价并未出现明显的短期波动。)
说明单一热门内容对股价的直接影响有限,市场反应更趋于长期趋势。)
Netflix Content Genre Trends Over Time(Netflix 内容类型随时间变化的趋势)
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Since 2015, Netflix has diversified its genre offerings significantly. The rise of international TV shows, documentaries, and non-English content suggests a deliberate global expansion strategy and content localization.(自 2015 年起,Netflix 的内容类型趋于多元化,国际剧集、纪录片和非英语内容明显上升,反映出其全球扩张与本地化战略的推进。)
Netflix Content Production Growth by Country - 2003 to 2021(各地区内容制作增长)
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Netflix’s content production has geographically diversified. While the U.S. still dominates, Europe and parts of Asia (like South Korea, India, Japan) now contribute significantly more than in the early 2000s.(Netflix 的内容生产逐渐实现地理多元化,虽然美国仍为主力,但欧洲和亚洲(如韩国、印度、日本)等地区的内容产出已大幅增长,助力平台国际化战略。)
Analysis Summary
Section 1: Has Netflix's Content Quality Changed?
Since around 2015, Netflix has shown a clear shift in strategy—from prioritizing fewer high-rated releases to expanding overall content volume. Both the average IMDb rating and the proportion of high-quality titles (IMDb ≥ 7.5) have declined steadily, especially post-2016.
This trend coincides with Netflix's transformation from a content curator into a global streaming platform. Instead of emphasizing a few prestigious titles, the platform now focuses on breadth, variety, and personalized content to serve a diverse and international user base.
The decline in average ratings should not be interpreted as a straightforward drop in content quality. Instead, it reflects a structural evolution in Netflix’s strategy—one shaped by platform-scale growth and global diversification.
Netflix 的内容质量是否发生变化?
自 2015 年前后起,Netflix 的内容策略发生了明显转变:由强调高评分内容,逐步转向注重内容数量和覆盖率。无论是平均 IMDb 评分,还是高评分内容(IMDb ≥ 7.5)占比,均在 2016 年后呈下降趋势。
这一变化与 Netflix 从“内容策展人”向“全球流媒体平台”角色的转型密切相关。平台不再追求少量精品,而是以内容多样性、规模化生产与个性化推荐来满足全球用户需求。
平均评分的下降不应被简单解读为质量退步,而更可能是 Netflix 在全球化与规模扩张战略下内容生态结构性演化的体现。
Section 2: How Does Content Influence Netflix’s Stock Performance?
Data shows that Netflix’s stock price does not respond directly to changes in content quality. Whether measured by average ratings, high-score proportions, or individual hit shows, the correlation with stock movement is weak.
In contrast, content quantity—especially the increase in total releases—shows a modest positive relationship with stock performance. This suggests that Netflix’s investor narrative is more aligned with growth, user engagement, and retention than critical acclaim.
In the early years (pre-2010), content quality had more noticeable influence. But in the platform’s maturity phase (post-2015), stock performance has been increasingly driven by financial reports, subscriber growth, and global positioning.
Thus, the impact of content is indirect: Content → User Growth / Retention → Financials → Stock Price
内容如何影响 Netflix 的股价表现?
数据分析显示,内容质量的变化(如平均评分、高评分占比、爆款数量)与 Netflix 股价走势之间并无显著相关性。
相较之下,内容数量的增长与股价之间存在一定程度的正相关。这表明,Netflix 的资本市场价值主张更偏向“增长、用户活跃度与留存率”,而非“内容口碑”。
早期(2010年之前)内容质量对股价影响更明显,而在成熟期(2015之后),股价更多受到订阅数据、财务表现与国际布局等宏观因素驱动。
因此内容的影响路径是间接的:内容 → 用户增长/留存 → 财务表现 → 股价
Section 3: Why Did Netflix Shift Its Content Strategy?
Netflix’s content strategy has shifted from focusing mainly on U.S.-based, limited-genre content to building a more global and diverse catalog. Since 2015, the share of international productions has grown significantly, and by 2020, non-U.S. content made up a large part of the platform’s offerings.
At the same time, Netflix expanded its range of genres—from mainly drama and comedy to include more documentaries, independent films, and international series. This change supports its global expansion and helps meet the tastes of a wider international audience.
These shifts also affect how audiences rate content. Differences in cultural background, viewer preferences, and rating habits across regions may help explain the drop in average IMDb scores. Rather than showing a drop in content quality, the lower scores likely reflect changes in content structure and audience diversity.
Netflix 为何调整其内容策略?
Netflix 的内容策略已经从早期偏重美国市场、类型相对单一,转变为更全球化和多样化的发展方向。自 2015 年以来,国际内容的占比大幅上升,到 2020 年,非美国地区的作品已经成为平台内容的重要组成部分。
与此同时,Netflix 也拓展了内容类型,从以往主要的剧情片和喜剧片,增加了更多纪录片、独立电影和国际剧集。这一变化不仅支持了全球扩张战略,也帮助平台更好地满足不同地区观众的偏好。
这些变化也影响了用户的评分表现。由于文化背景、观看习惯和评分方式存在差异,IMDb 平均评分的下降并不一定意味着内容质量下滑,更可能反映的是内容结构和受众多样化带来的评分变化。
Insights
Netflix’s average content ratings have declined in recent years, but this should not be mistaken for a simple drop in quality. Instead, it reflects a structural shift in content strategy. As a subscription-driven global streaming platform, Netflix is not a traditional film studio. Its content ecosystem is built around user retention, discovery, and conversion—not critical acclaim.
Rather than aiming for every title to be a high scorer, Netflix focuses on producing or acquiring a large volume of “85-point” content—mid-to-high-quality shows and films that, when delivered in diverse formats and updated frequently, help sustain user engagement and subscription growth. This approach improves distribution efficiency and lowers churn.
Netflix 的平均内容评分近年来有所下降,但这不应被误认为是质量的简单下降,而是反映了其内容战略的结构性转变。作为一个订阅驱动的全球流媒体平台,Netflix 并非传统的电影工作室。其内容生态系统建立在用户留存、发现和转化率之上,而非口碑。
Netflix 的目标并非让每部作品都获得高分,而是专注于制作或收购大量“85 分”内容——这些中高质量的节目和电影,如果以多样化的格式交付并频繁更新,就能帮助维持用户参与度和订阅量增长。这种方法提高了分发效率并降低了用户流失率。
Algorithm-Led Distribution Strategy
Netflix’s recommendation algorithm plays a central role in shaping what users watch. The platform prioritizes content relevance over average rating. As a result, mid-tier and long-tail content are more likely to be recommended if they align with user interests—even if their average ratings are not the highest.
Rating ≠ Success. What matters more is: relevance × reach × conversion.
算法主导的分发策略
Netflix 的推荐算法在塑造用户观看内容方面发挥着核心作用。该平台优先考虑内容相关性而非平均评分。因此,如果中端和长尾内容符合用户兴趣,即使它们的平均评分并非最高,也更有可能被推荐。
评分≠成功。更重要的是:相关性 × 覆盖率 × 转化率。
Globalization Means Localized Content
Netflix’s global expansion is not about exporting American values worldwide. Instead, it builds a decentralized and multicultural content network through local productions, regional acquisitions, and multilingual releases. Localized content is not only more cost-effective but also drives stronger emotional connection and word-of-mouth in each market.
There is no universal definition of “good content.” Netflix aims for reach across diverse standards—not one global aesthetic.
全球化意味着内容本地化
Netflix 的全球扩张并非旨在向全球输出美国价值观。相反,它通过本地制作、区域收购和多语言发行,构建了一个去中心化、多元文化的内容网络。本地化内容不仅更具成本效益,还能在每个市场中建立更强大的情感联系和口碑。
“好内容”没有统一的定义。Netflix 的目标是覆盖各种标准,而不是单一的全球审美。
From Consumption to Participation
Today’s users want more than just content to watch—they seek stories they can follow, characters they connect with, and communities they can join. This makes serialized shows, local IPs, and multi-season formats more valuable. Netflix, in turn, strengthens its hold over user engagement and content life cycles.
Success = Viewership + Resonance + Participation. Netflix’s content structure is designed for long-term involvement, not just one-time viewing.
从消费到参与
如今的用户想要的不仅仅是观看内容——他们寻求的是可以追随的故事、与之产生共鸣的角色以及可以加入的社群。这使得连续剧、本地 IP 和多季剧集模式更具价值。反过来,Netflix 也加强了对用户参与度和内容生命周期的控制。
成功 = 收视率 + 共鸣 + 参与度。Netflix 的内容结构旨在吸引观众长期参与,而非一次性观看。
Extended Thinking: Are We Moving Beyond Scores?
Content ROI and Financial Optimization
To ensure sustainable growth, Netflix leans toward content with a higher return on investment—such as non-English titles, international co-productions, and so on. These formats typically come with lower production costs, higher local engagement, and more manageable risks. It’s a strategic trade-off: sacrificing high ratings for better unit economics.
Lower average scores can be a rational choice in exchange for higher margins and controlled risk.
内容投资回报率和财务优化
为了确保可持续增长,Netflix 倾向于投资回报率更高的内容,例如非英语片、国际合拍片等等。这些格式通常制作成本更低、本地参与度更高、风险更易于管理。这是一种战略权衡:牺牲高评分来换取更高的经济效益。
为了获得更高的利润和可控的风险,降低平均评分或许是一个理性的选择。
As streaming platforms evolve, traditional rating systems are becoming less meaningful. Scores are essentially a form of opinion expression, often influenced by personal emotions, cultural context, and extreme viewpoints. On platforms like IMDb, user reviews tend to skew toward either highly positive or strongly negative experiences, leading to polarization.
In this context, the success of content is no longer defined by critics or high ratings alone. Instead, it increasingly depends on behavioral indicators such as watch time, completion rate, rewatch frequency, and content sharing. These metrics offer a more accurate reflection of user engagement and content value.
At the same time, content evaluation standards across global audiences are becoming increasingly diverse. It is no longer realistic to expect one piece of content to resonate universally—each region has its own cultural expectations and its own definition of a “high-quality” show.
With the rise of AI-driven personalized recommendation systems, content evaluation is shifting from a standardized model to an individualized one. Platforms may even intentionally promote “mid-tier but widely appealing” content to optimize retention. As user-level differences become more pronounced, platforms are moving from a score-based logic to a behavior-driven model of content success.
随着平台的发展,传统的评分体系正逐渐失去原有的意义。评分本质上是一种主观表达方式,容易受到情绪、文化背景以及极端观点的影响,常表现出明显的两极化倾向。尤其是在像 IMDb 这样的评分平台上,用户往往只在极度满意或极度失望时才会留下评分与评论。
在这种背景下,内容是否“成功”越来越不取决于影评人意见或高评分标签,而是基于用户的实际行为数据,例如停留时长、完成率、复播次数与分享频率等。这些指标更能准确反映用户对内容的真实偏好和投入程度。
同时,全球观众的内容评价标准正在加速分化。很难再有一部作品能“全球通吃”,因为每个地区都有其特定的文化语境与内容偏好,也都有自己对“高分内容”的定义。
在 AI 和个性化推荐技术不断演进的推动下,内容的评价体系正从统一标准转向“个体差异化”的模式。未来,平台甚至可能更倾向于放大那些“中上质量、广泛可接受”的内容,以提升整体用户留存效率。个体喜好的差异性也将在这种机制中被进一步放大,推动平台从“评分逻辑”转向“行为逻辑”。
Limitations & Future Improvements
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IMDb ratings are largely shaped by English-speaking users, while non-English-speaking audiences are often underrepresented. As Netflix expands its non-English content, this creates a cultural bias in global ratings—regional hits may appear underrated due to low participation from their actual viewership base. This skews content evaluation and may misrepresent the true performance of localized content.(IMDb评分主要由英语用户主导,非英语地区用户参与度较低。随着Netflix非英语内容增多,这导致全球评分存在文化偏差——许多本地爆款可能因评分代表性不足而被低估,进而扭曲内容质量的真实评估。)
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Netflix’s stock price is shaped by many factors—subscriber growth, earnings reports, market competition, and macroeconomic trends. This makes it difficult to isolate the impact of content quality. While content may influence engagement and retention, it is only one of many drivers behind stock performance.(Netflix股价受订阅增长、财报表现、市场竞争和宏观经济等多重因素驱动,难以单独评估内容质量的影响。内容可能影响用户留存与参与度,但并非决定股价波动的唯一因素。)
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This analysis does not include key engagement metrics like watch time, churn rates, or subscription renewals. Since Netflix’s internal data is not publicly available, it’s difficult to assess how content quality truly affects user retention and overall business performance.(此分析未涵盖观看时长、用户流失率或订阅续订等关键参与度指标。由于 Netflix 的内部数据不对外公开,因此很难评估内容质量如何真正影响用户留存率和整体业务表现。)
Limitations
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Investigate whether declining IMDb scores correlate with subscriber retention rates, user dissatisfaction, or reduced engagement over time. Identify whether lower-rated content leads to increased subscription cancellations or a shift in viewing habits.(可进一步探讨 IMDb 评分下降是否与用户留存率下降、不满情绪上升或平台使用率降低存在相关性。重点在于识别:低评分内容是否会导致用户取消订阅或改变观看习惯。)
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Extract discussions from Twitter, Reddit, and YouTube to analyze how public sentiment toward Netflix content evolves. Determine whether negative/positive reception on social media aligns with IMDb ratings trends or subscriber behavior.(可通过提取 Twitter、Reddit 和 YouTube 等平台上的讨论内容,分析公众对 Netflix 内容的情绪变化轨迹。同时评估:社交媒体上的正负面反馈是否与 IMDb 评分趋势或订阅用户的行为模式存在一致性或差异性。)
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Broaden the scope to include Disney+, Amazon Prime Video, and HBO Max to assess whether the decline in content quality is unique to Netflix or reflects a broader industry trend. Investigate whether these platforms adopt different content strategies—for example, placing more emphasis on high-budget, high-quality productions—as compared to Netflix’s volume-driven model.(将分析范围扩展至 Disney+、Amazon Prime Video 与 HBO Max,以判断内容质量下滑是否是 Netflix 独有的问题,还是整个行业的普遍现象。同时比较不同平台的内容策略差异,例如:其他平台是否更偏向于投入高成本、高质量制作,而非 Netflix 所采用的“规模优先”模式。)