🔧 證券投資工具

📚 (淨資產 − 優先股) / 流通股Book Value Per Share 每股賬面價值（BVPS）計算器：輸入淨資產、優先股與流通股數，按 (淨資產−優先股)/流通股 求每股淨資產，用於估值分析。Book Value Per Share - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment to... 📊 Beta係數計算器Beta Coefficient Calculator 輸入個股與市場收益率序列，計算 Beta 係數、協方差與相關係數，衡量個股相對大盤的系統風險，用於 CAPM 定價與組合風險評估。Beta Coefficient Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of th... 📐 債券凸性計算器Bond Convexity 債券凸性計算器Bond Convexity - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 債券久期計算器Bond Duration 債券久期計算器Bond Duration - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🎯 倉位管理計算器Position Sizing 輸入勝率、盈虧比或單筆可承受虧損資金，用凱利公式 f* = W − (1−W)/R 計算最優倉位比例，或按固定風險法確定下單手數。Position Sizing - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 💵 債券收益率估算Ytm Approx 債券收益率（YTM）近似估算工具，輸入面值、現價、票息與到期年限，用近似公式快速計算到期收益率，輔助債券投資回報評估，純前端。Ytm Approx - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🔲 協方差 / 市場方差β Coefficient Calculate β 係數（Beta）在線計算器，輸入個股與市場收益率序列，計算協方差與市場方差之比求得系統性風險係數，用於 CAPM 與組合分析，純前端。β Coefficient Calculate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment... ⚖️ 夏普比率計算器Sharpe Ratio 輸入組合收益率、無風險利率與收益率標準差，按 Sharpe = (Rp − Rf)/σp 計算夏普比率，衡量每單位波動的超額回報，用於基金比較。Sharpe Ratio - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 市場收益 − 無風險利率Market Risk Premium 市場風險溢價計算器，輸入股票市場預期收益率與無風險利率，求得股權風險溢價（ERP），用於 CAPM 與資產估值，適合投資分析教學，純前端。Market Risk Premium - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 布林帶上下軌（標準差）計算Bollinger Bands Calculator (Upper / Lower / Std Dev) 計算布林帶中軌(SMA)、上軌、下軌、%B 及帶寬(Bandwidth)Compute Bollinger Bands: midline, bands, %B and bandwidth. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securi... 🧾 年息 / 現價Current Yield 輸入債券年利息與當前市價，按當前收益率 = 年利息 / 債券現價 計算，用於比較不同債券的固定收益水平與到期前票息回報。Current Yield - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 戈登增長模型估值Ddm Price 輸入預期次年股息、折現率與永續增長率，按 P = D₁/(r−g) 用戈登增長模型估算穩定增長股票內在價值，用於股息貼現估值。Ddm Price - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 技術指標計算器Technical Indicator 輸入一段收盤價序列，計算移動平均MA、指數平滑異同MACD、相對強弱RSI與隨機指標KDJ，輔助判斷行情趨勢與買賣信號，用於技術分析。Technical Indicator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 日波動率 × √252Annualized Volatility 輸入日波動率（或日收益率標準差）與年交易日數，按年化波動率 = 日波動率 × √交易日數 折算年化波動，用於風險評估與期權定價。Annualized Volatility - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment t... 📉 最大回撤計算Maximum Drawdown Calculator 輸入組合淨值序列（每行一個數值），計算峯值到谷底的最大回撤、回撤恢復週期、年化收益與卡瑪比率，並繪製回撤曲線。Analyze portfolio maximum drawdown. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📞 歐式看漲期權定價Black Scholes Call Black-Scholes 歐式看漲期權定價計算器，輸入標的價、行權價、波動率、無風險利率與期限，輸出理論期權價格與希臘字母，輔助衍生品估值，純前端。Black Scholes Call - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📲 歐式看跌期權定價Black Scholes Put Black-Scholes 歐式看跌期權定價計算器，輸入標的價、行權價、波動率、無風險利率與期限，輸出理論期權價格與希臘字母，輔助衍生品估值，純前端。Black Scholes Put - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🥧 每股股利 / 每股收益Dividend Payout 股利支付率計算器：輸入每股收益 EPS 與每股股利 DPS，按 DPS/EPS 求股利支付率，衡量公司分紅比例與留存政策。Dividend Payout - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🌿 由個股與市場收益率協方差與方差求 βBeta Covariance 輸入個股與市場收益率的協方差、市場收益率方差，按 β = Cov/Var 求 Beta 係數，用於快速評估資產相對市場的系統性風險敞口。Beta Covariance - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📊 由主動收益序列求信息比率Information Ratio 信息比率（IR）計算器：輸入主動收益序列均值與跟蹤誤差，求 IR = 平均主動收益/跟蹤誤差，評估基金經理超額收益穩定性。Information Ratio - format text online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securit... 🎯 由主動收益序列求跟蹤誤差Tracking Error 輸入組合與基準的超額收益序列（逗號或空格分隔），計算跟蹤誤差 TE = std(r_p − r_b)，衡量主動管理偏離基準的波動風險。Tracking Error - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🔁 由買賣價與股息求持有期收益率Holding Return Stock 輸入買入價、賣出價與持有期股息，按 r = (P₁ − P₀ + D)/P₀ 計算持有期收益率，含分紅的總回報，用於基金與個股業績評估。Holding Return Stock - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment to... 📉 由價格峯值與谷值求最大回撤Max Drawdown 最大回撤計算器：輸入區間價格峯值與谷值，按 (峯值−谷值)/峯值 求最大回撤，衡量投資風險與下行幅度。Max Drawdown - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🏢 由市值、債務與現金求企業價值Enterprise Value 輸入股票市值、總債務與現金及等價物，按 EV = 市值 + 債務 − 現金 計算企業價值，用於跨資本結構比較公司收購估值。Enterprise Value - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. ⚖️ 由市盈率與盈利增長率求 PEGPeg Ratio 輸入市盈率 PE 與盈利增長率 g（百分比），按 PEG = PE/(g×100) 計算，將增長納入估值比較，用於判斷高成長股是否被高估。Peg Ratio - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 由日波動率求年化波動率Annualized Vol 年化波動率計算器：輸入日波動率 σ_日，按 √252 個交易日換算年化波動率，用於投資組合風險度量與波動評估。Annualized Vol - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📚 由每股淨資產與股價求賬面市值比Book to Market 輸入每股淨資產 BVPS 與當前股價，按 B/M = BVPS / P 求賬面市值比，用於價值股篩選與因子投資中的估值水平比較。Book to Market - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securit... 💯 由每股收益與股價求盈利收益率Earnings Yield 輸入每股收益 EPS 與股價，按盈利收益率 = EPS / P 計算，相當於市盈率的倒數，用於橫向比較股票盈利回報與債券收益率。Earnings Yield - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 💧 由每股自由現金流與股價求收益率Fcf Yield 輸入每股自由現金流 FCF 與股價，按收益率 = FCF / 股價 計算自由現金流收益率，用於評估企業真實現金回報與估值安全邊際。Fcf Yield - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. ↘️ 由行權價與權利金求看跌期權盈虧平衡價Option Breakeven Put 輸入看跌期權行權價與支付權利金，按 BE = 行權價 − 權利金 計算盈虧平衡股價，用於買入看跌策略的止損與獲利邊界分析。Option Breakeven Put - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment to... 🛡️ 由賬户權益與持倉市值求保證金比例Margin Requirement 輸入賬户權益與持倉市值，按保證金比例 = 權益 / 持倉市值 計算，用於監控融資融券或期貨賬户的保證金佔用與風險水平。Margin Requirement - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 由預期股利、要求收益率與增長率求股價Gordon Growth Price 輸入預期每股股利 D₁、要求收益率 r 與股利增長率 g，求合理股價。Gordon Growth Price - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📊 組合收益率計算器Portfolio Return 輸入各持倉資產金額與對應收益率，計算加權平均的組合收益率，用於評估多資產投資組合的整體表現與資產配置效果。Portfolio Return - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. ⚖️ 股價 / 每股賬面價值Price to Book 市淨率（P/B）計算器：輸入股價與每股賬面價值 BVPS，求 P/B = 股價÷BVPS，用於股票估值高低判斷。Price to Book - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securiti... 🏢 股價 × 總股本Market Cap 總市值計算器：輸入股價與總股本，按 股價×總股本 求公司總市值，用於上市公司規模評估與指數權重判斷。Market Cap - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 📈 股票盈虧計算Stock Profit / Loss Calculator 輸入買入價、賣出價、股數與佣金税費，計算股票交易的毛利潤、淨盈虧與收益率，用於復盤交易成本與真實盈利估算。Compute stock trading profit and loss. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools. 🎯 行權價 + 權利金Option Breakeven Call 看漲期權盈虧平衡計算器：輸入行權價與權利金，求 盈虧平衡 = 行權價 + 權利金，用於期權交易損益分析。Option Breakeven Call - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment t... 💯 資本資產定價模型Capm Return 資本資產定價模型（CAPM）計算器：輸入無風險利率、β 與預期市場收益率，求資產期望收益率，用於資產定價與回報評估。Capm Return - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Securities Investment tools.