--- title: "📈 AI Stock Chat, 2026-10-31: US Stocks Bloodbath, Night Session Plummets, Next Monday's Opening Tests Bulls' Defense!" description: "Hello everyone, I'm Muyan! Today is Saturday, October 31, 2026. Although the Taiwan stock market is closed today, looking at the weekend's international market trends, I believe everyone is feeling a bit anxious. On the latest trading day, Friday, October 30, the Taiwan stock index closed down -1.42%, and market sentiment was quite low. In today's episode of \"AI Stock Chat\", I will help you prepare in advance as we look at how AI models predict the trends and key indicators of the Taiwan stock market for the next trading day, Monday, November 2." canonical_url: "https://blog.markkulab.net/en/ai-stock-chat/ai-stock-chat-2026-10-31" author: "Mark Ku" author_url: "https://blog.markkulab.net/en/author/mark-ku" site: "Mark Ku's Tech Notes" date_published: "2026-10-31T02:00:00.000Z" category: "AI Stock Market Chit-Chat" tags: ["ai-stock", "podcast", "台股預測", "台股", "AI預測", "廣達2382", "鴻海2317", "大盤分析"] language: "en" license: "CC BY 4.0" license_url: "https://creativecommons.org/licenses/by/4.0/" attribution: "when reusing or quoting, credit the author and link back to the original" --- # 📈 AI Stock Chat, 2026-10-31: US Stocks Bloodbath, Night Session Plummets, Next Monday's Opening Tests Bulls' Defense! ## Opening Hi everyone, I'm Mu-Yen! Today is Saturday, October 31, 2026. Although the Taiwan stock market is closed today, looking at the international market trends over the weekend, I'm sure everyone is feeling a bit anxious. On the latest trading day, Friday, October 30, the TAIEX closed down -1.42%, and the market sentiment was quite depressed. In today's episode of "AI Stock Chat," I will help you prepare ahead of time. Let's take a look at how our AI model predicts the TAIEX trend and key indicators for the next trading day, Monday, November 2. --- ## Today's Market Forecast

TAIEX AI Prediction Interval (Next-Day / Short-Term)

First, let's look at the AI model's latest forecast for the market on Monday, November 2. This show values honesty and transparency above all else, so we present the data exactly as it is. | Horizon | Current Price | Predicted Direction | Target Range | Confidence | | --- | --- | --- | --- | --- | | Next-Day (11/02) | 46,368.33 | Bearish | 45,551.75 ~ 46,205.01 | 75.0% | | Short-Term (1 Week) | 46,368.33 | Bearish | 44,542.39 ~ 46,003.14 | 75.0% | Based on the AI's predictions, both the next-day forecast for Monday, November 2, and the short-term forecast for the coming week are "bearish," with a high confidence level of 75.0%. Looking back at the market on Friday, October 30, the main index fell by -1.42%, and market breadth was also terrible, with 745 decliners and only 235 gainers. Overall market sentiment is bearish, and the bulls will undoubtedly face severe defensive pressure when the market opens on Monday. --- ## Current Global Market Status Next, we must face reality and look at the international markets dragging down Taiwan stocks. This section only shows the latest closing status as of the weekend; the AI does not make predictions for international indices. | Index | Close | Change % | | --- | --- | --- | | Taiwan Index Futures Night Session (TXF) | 44,433.00 | -1.91% | | Dow Jones Industrial Average (DJI) | 51,770.31 | -1.09% | | S&P 500 Index (GSPC) | 7,580.07 | -1.82% | | Nasdaq Composite (IXIC) | 25,437.00 | -2.86% | | Philadelphia Semiconductor Index (SOX) | 10,688.80 | -7.20% | The four major US indices plummeted on Friday, with technology and semiconductor stocks hit the hardest, as the Philadelphia Semiconductor Index plunged -7.2%! Taiwan Index Futures night session also tumbled, closing at 44,433 points, a single-day drop of -1.91%. I want to draw your attention to a market logic regarding "negative spread": although the night session's single-day drop is listed as -1.91%, if we compare it to Friday's cash TAIEX close of 46,368.33 points, the negative spread between the two is actually as high as 1,935 points (equivalent to a -4.17% gap)! This indicates that market hedging and panic sentiment are extremely tight, and when the Taiwan stock cash market opens on Monday, November 2, there is a very high probability of strong pressure to open lower and play catch-up to the downside. --- ## AI Predictions for Key Stocks Because "AI Stock Chat" prioritizes compliance and honesty, I want to remind everyone once again: **Our AI model currently only predicts the direction and range for the "TAIEX (Weighted Index)." We absolutely do not provide any directional forecasts, target prices, or buy/sell recommendations for individual stocks.** However, although we do not make future predictions for individual stocks, we can use the AI's "Strategic Stock Selection Radar" to filter and interpret key stocks with outstanding quantitative indicators in the market from technical, institutional flow, and valuation perspectives. --- ## Strategic Stock Selection Radar The following are stocks filtered by the AI based on the latest quantitative data. **These are strictly strategic screening results, not buy/sell predictions for individual stocks.** | Stock | Overall Score | Flow Score | P/E Ratio | Valuation | | --- | --- | --- | --- | --- | | Formosa Chemicals (1326) | 73 | 100 | 31.53 | fair | | Quanta (2382) | 73 | 100 | 13.86 | cheap | | Fubon Financial (2881) | 72 | 100 | - | - | | President Chain Store (2912) | 72 | 100 | 19.89 | cheap | | Foxconn (2317) | 71 | 100 | 16.35 | fair | ### Plain English Interpretation of Key Stock Quantitative Indicators: * **Formosa Chemicals (1326)**: Overall score of 73. Currently, the market forces of bulls and bears are balanced. The short-, medium-, and long-term moving averages show a bullish alignment, and the stock price has successfully risen above the monthly moving average (medium-term bullish). However, the RSI is currently at a moderate 52, and the short-term KD indicator is pointing downward (bearish). There is currently no clear buy or sell signal, so we recommend a wait-and-see approach. * **Quanta (2382)**: Overall score of 73. The current valuation is on the cheap side. Technically, the moving averages are tangled, showing no clear direction yet. The stock price has fallen below the monthly moving average (medium-term bearish), but the short-term KD indicator is pointing upward (bullish). It is currently also in a wait-and-see range with bulls and bears locked in a tug-of-war. * **Fubon Financial (2881)**: Overall score of 72. Technically, a bullish candlestick pattern (hammer) has appeared, and the momentum indicator CCI has strengthened to 125.05. However, note that Williams %R has reached the overbought zone at -18.52, indicating a significant short-term rally. Be cautious of the risk of chasing highs when the market opens on Monday. * **President Chain Store (2912)**: Overall score of 72. The current valuation is also on the cheap side. Although the CCI reached 108.97, indicating strengthening momentum, a bearish signal has appeared technically with a KD death cross at high levels. Exercise caution if chasing highs. * **Foxconn (2317)**: Overall score of 71. The main bullish factor is that the MACD histogram has turned positive, showing signs of strengthening upward momentum. The current valuation is in the fair range. --- ## Review of Recent Prediction Accuracy

Recent Directional Accuracy (higher is more accurate; includes settled sample size)

No boasting, no sugarcoating, let's look directly at the recent real performance of our AI model. In terms of "Next-Day TAIEX Forecast," the recent directional accuracy is 44.4% (8 out of 18 times), with 5 perfect interval hits and an average error of 1.16%. In terms of "Short-Term (1 Week) TAIEX Forecast," the directional accuracy is 57.1% (8 out of 14 times), with 3 perfect interval hits and an average error of 2.3%. As you can see from the data, the next-day directional accuracy is actually under 50%, which shows that short-term market fluctuations are highly random and the AI often gets it wrong. Therefore, when facing the expected drop on Monday, November 2, even though the AI is bearish, you must still manage your personal risk and avoid over-leveraging or over-betting! --- ## Disclaimer This content is automatically generated by an AI model based on quantitative data and is for research reference only. It does not constitute any investment advice or recommendation. This website and the show producers are not registered investment advisors, do not provide analytical opinions to specific individuals, and do not receive any compensation for this content. Investing involves risk; please make your own judgments and assume all responsibility. --- ## About this article and its author Originally published on [Mark Ku's Tech Notes](https://blog.markkulab.net/en/ai-stock-chat/ai-stock-chat-2026-10-31) License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) — when reusing or quoting, credit the author and link back to the original ### About the author **[Mark Ku](https://blog.markkulab.net/en/author/mark-ku)** — Software engineer - 10+ years as a software engineer - Built North-American e-commerce and AI SaaS subscription billing ### Free tools built by the author All of these are free to use: - [Free PDF Sign Tool](https://blog.markkulab.net/en/tools/pdf-sign): Online PDF sign tool — draw, type, or upload a signature, then drag, resize, and download. 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No sign-up, nothing uploaded to a server, and mermaid.live share links work as-is. - [React Intl Phone Number](https://blog.markkulab.net/en/tools/react-intl-phone-number): react-intl-phone-number is an open-source React component: framework-agnostic and antd-free, with E.164 in/out, a searchable flag / country-code dropdown, configurable validation levels (strict / mobile-strict / loose), themeable CSS, and i18n — phone logic powered by google-libphonenumber. Lightweight and fully typed. Free and open source (MIT). - [Uptime Kuma Cluster](https://blog.markkulab.net/en/tools/uptime-kuma-cluster): Turn single-node Uptime Kuma into a highly available cluster: OpenResty + Lua smart load balancing, shared MariaDB state, health checks and automatic failover, plus cluster-management REST APIs. One Docker Compose command to start. Free and open source (MIT). - [AI Podcast Cut](https://blog.markkulab.net/en/tools/ai-podcast-cut): Drop in a recording and it removes fillers and stutters, levels loudness segment by segment, and sends a second agent to review every cut. Cut points snap to word boundaries and zero crossings, every splice gets a fade, and sentence-end breaths are preserved. Desktop app for Windows, macOS and Linux. MIT licensed; the Windows installer bundles ffmpeg. - [AI Video Cut](https://blog.markkulab.net/en/tools/ai-video-cut): Pick something in your video: type it (face, license plate, phone screen, logo), click points or drag a box, or let Claude Code / Codex pick it. AI Video Cut tracks it frame by frame, then mosaics or blurs it, recolors it, pins stickers and text to it, swaps a screen or poster for your own image or video, or removes it using background that other frames actually captured. Plus sequence editing, local captions and an AI assistant. Free, open-source (MIT) Windows desktop app (macOS / Linux experimental) that runs locally, nothing uploaded. - [open-pos restaurant POS](https://blog.markkulab.net/en/tools/open-pos): One computer and one receipt printer is enough to open the shop. Your data lives on your own disk, no subscription, no lock-in, MIT licensed. Money is integer New Taiwan dollars with tax split by the statutory formula, so sales + tax always equals the total. Printing goes straight over ESC/POS on TCP 9100, with no vendor driver. Tauri + Rust + SQLite desktop app, v1.0 in development. - [.NET e-commerce API template](https://blog.markkulab.net/en/tools/dotnet-ecommerce-api): An e-commerce backend API template built on .NET 10: Controller → Service → Repository layering, Autofac convention-based registration, SqlSugar for MySQL / MariaDB and SQL Server, Redis cache and message queue, Hangfire jobs, JWT auth, and an extensible payment provider module (ECPay, Newebpay). Apache 2.0. - [Open Token Monitor team AI usage](https://blog.markkulab.net/en/tools/open-token-monitor): Collect token usage and equivalent cost from every employee's AI coding tools into a hub you host yourself: PostgreSQL, org roster, dashboards compared by company and department, and a reports API. Electron and Rust/Tauri clients upload every 30 minutes. MIT licensed, one Docker command. - [ai-security-monitor defensive security](https://blog.markkulab.net/en/tools/ai-security-monitor): Your website is live. Who checks its certificates, security settings and known vulnerabilities? A self-hosted Security Hub brings website scans and host monitoring together, deduplicates findings and compares scans after fixes. ### Daily podcasts - [Mark's Tech Insights — Daily AI News](https://blog.markkulab.net/en/category/tech-news): Daily curated AI and tech trends. 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