Markets Compass 是一款金融儀表板，專門追蹤四項核心的指數股票型基金（ETF）：SPY、QQQ、DIA 和 GLD。這些 ETF 提供了美國市場在不同領域表現的全面概覽。
- SPY 追蹤標準普爾 500 指數（S&P 500），代表美國規模最大的 500 家公司，是衡量整體市場健康狀況的首要指標。
- QQQ 追隨那斯達克 100 指數（Nasdaq-100），權重高度集中於蘋果（Apple）、微軟（Microsoft）和亞馬遜（Amazon）等科技龍頭。
- DIA 反映了道瓊工業平均指數（Dow Jones Industrial Average），追蹤 30 家以穩定性和持續表現著稱的藍籌股公司。
- GLD 提供實體黃金價格的投資管道，作為對抗通貨膨脹和市場波動的避險工具。
此儀表板顯示每日收盤價，並於週一至週五美東時間下午 6:45（美股收盤後）自動更新。每張 ETF 卡片均列出當前價格、單日漲跌百分比，以及包括開盤價、最高價、最低價和成交量在內的關鍵統計數據。互動式走勢圖（Sparkline charts）將 30 天的價格趨勢視覺化，而市場狀態列則會顯示美國市場目前是處於開市或休市狀態。
Markets Compass 採用 Next.js 開發並部署於 Netlify，並使用 Alpha Vantage API 獲取可靠的每日收盤市場數據。其簡潔且具響應式的介面，讓投資者能透過一個便利的視圖，輕鬆掌握整體市場走向、科技板塊表現、藍籌股穩定性以及大宗商品趨勢。
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Markets Compass is a financial dashboard that tracks four essential Exchange-Traded Funds: SPY, QQQ, DIA, and GLD. These ETFs provide a comprehensive snapshot of U.S. market performance across different sectors.
SPY tracks the S&P 500 index, representing the 500 largest U.S. companies and serving as the primary benchmark for overall market health. QQQ follows the Nasdaq-100, heavily weighted toward technology leaders like Apple, Microsoft, and Amazon. DIA mirrors the Dow Jones Industrial Average, tracking 30 blue-chip companies known for stability and consistent performance. GLD offers exposure to physical gold prices, serving as a hedge against inflation and market volatility.
The dashboard displays daily closing prices updated automatically Monday through Friday at 6:45 PM Eastern Time, after U.S. market close. Each ETF card shows the current price, daily change percentage, and key statistics including open, high, low, and trading volume. Interactive sparkline charts visualize 30-day price trends, while a market status banner indicates whether U.S. markets are currently open or closed.
Built with Next.js and deployed on Netlify, Markets Compass uses the Alpha Vantage API for reliable end-of-day market data. The clean, responsive interface helps investors track broad market movements, tech sector performance, blue-chip stability, and commodity trends in one convenient view.