Costline
ExtensionJust for Fun
Overview
Track holdings against your cost basis. Inline intraday sparkline per card. Yahoo Finance data.
Costline 讓你在瀏覽器裡低調追蹤台股持倉,不用開任何網頁。 ━━ 核心功能 ━━ 📊 成本基準線 輸入你的買入均價,漲過去填紅、跌破填綠,一眼看出賺賠。 💰 投資組合總覽 所有持倉合計:總損益、總報酬率、總投入金額,即時更新。 🗂 自訂群組 群組名稱自己取(核心、基金、ETF...),自由分類。 🔗 一鍵 Yahoo Finance 點圖表直連 Yahoo Finance 看完整技術分析。 🌓 深色 / 淺色模式 上班偷看選淺色不顯眼,夜晚看盤選深色護眼。 🔒 完全本地,資料不離裝置 所有資料存在瀏覽器本地,不上傳任何伺服器。 ━━ 支援標的 ━━ 台灣上市(.TW)自動偵測,上櫃(.TWO)自動 fallback。 資料來源:Yahoo Finance 公開行情(延遲約 15 分鐘)。 ━━ 注意 ━━ 本工具僅供個人參考,不構成投資建議。
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Details
- Version1.1.1
- UpdatedJune 25, 2026
- Offered byCeline Fu
- Size20.71KiB
- Languages中文(台灣)
- Developer
Email
celine.fu.work@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
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This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes