Portfolio Management

Dashboard

Portfolio overview and recent activity

Portfolio Value

—

Total Invested

—

Return

—

Open Positions

—

Top Positions

Name	Type	Value (EUR)	P&L %
Loading…

Allocation by Type

Loading…

Wealth Simulator

Project your portfolio growth over time using Geometric Brownian Motion. Your current portfolio value is pre-filled automatically.

Recent Transactions

Date	Asset	Type	Qty	Price	Total
Loading transactions...

Assets

All tracked securities and funds. Prices update daily from Yahoo Finance.

Symbol	Name	Type	Exchange	Current Price	Currency	Actions
Loading assets...

Transactions

Full transaction history: buys, sells, and dividends across all brokers.

Date	Portfolio	Asset	Type	Quantity	Price	Currency	Total	Fees	Actions
Loading transactions...

Holdings

Current open positions with cost basis, live price, and P&L. All values in EUR.

Total Value

—

Total Cost

—

Total P/L

—

Symbol	Name	Type	Currency	Quantity	Avg Price	Current Price	Total Value	P/L	P/L %	Links	Research
Loading holdings...

Rebalancing

Target Allocation

Set a target percentage for each asset type. Targets should sum to 100%.

Analysis

Type	Current %	Target %	Drift %	Action
Save targets to see analysis.

Analytics

Performance vs benchmark, net worth history, dividend income and a Spanish IRPF tax estimate.

Performance

All YTD 1Y 1M

Benchmark

Loading performance (fetching benchmark, may take a few seconds)…

Net Worth Over Time

Value Invested

Loading…

Dividend Income

Loading…

Gain / Loss leaders

Loading…

Tax Estimate (Spanish IRPF)

Year

Loading…

Detailed tax report

Loading…

Year-end tax optimizer

Loading…

Diversification & Concentration

Sector / country breakdown is fetched live from Yahoo Finance and takes ~20-30s.

Risk

Loading…

Fees & Costs

Loading…

Watchlist

Track securities you are considering and get alerted when they enter your buy zone. Prices fetch live, so loading may take a few seconds.

Add to Watchlist

Symbol	Name	Type	Current Price	Buy Below	Distance to Buy	Notes	Actions
Loading watchlist (fetching live prices)…

Goals

Set financial targets and track whether your total net worth (investments + off-brokerage assets − liabilities, from the Net Worth page) and monthly contributions keep you on course.

Add Goal

Name *

Target € *

Target date *

Monthly € *

Return % *

Loading…

Chat

Ask questions about your portfolio or extract transactions from broker statements.

What can I help you with?
Try: "What is my total P&L?" · "Show me my top holdings" · or paste a broker statement and click Extract & Import.

Portfolios / Brokers

Each portfolio is one broker / account. Imports create a portfolio automatically; the dates show what each already covers.

Broker	Currency	Value (EUR)	P&L	Activity (first → last)	Description	Actions
Loading…

Research

Pick a ticker — from your holdings, watchlist, or any symbol — set goal buy/sell prices, capture your thesis, and let an LLM (with live news) assist.

Ticker

Start typing — your holdings & watchlist (with names & exchange) are suggested.

—

Current price—

Your avg cost—

Position—

Fundamentals Yahoo Finance

Valuation → goal prices

Method

EPS

Target P/E

Margin of safety %

Take-profit premium %

Buy below

—

Fair value

—

Sell above

—

EPS and Target P/E are pre-filled from Yahoo Finance fundamentals (trailing-twelve-month EPS and current trailing P/E); Annual dividend / yield likewise. Edit any of them to model your own assumptions. Then: Fair value = EPS × target P/E (or dividend ÷ target yield) · Buy below = fair × (1 − margin of safety) · Sell above = fair × (1 + take-profit premium).

Your position From your transactions (FIFO)

You paid (cost basis)

—

Current value

—

Unrealised P/L

—

Realised P/L

—

Sell calculator

Shares to sell

or % of position

Enter a quantity or % to see proceeds and gain/loss.

Average cost vs price over time

Transactions

Date	Type	Qty	Price	Total

LLM analysis AI · not advice

Click “Research with web” for an LLM read on fundamentals + recent news. You can pull its fair value into the calculator.

Your thesis

Conviction

History

Ticker	Price	Fair value	Upside	Buy<	Sell>	Conviction	Updated
No saved research yet.

Wealth Simulator

Project net worth using Geometric Brownian Motion per asset class plus deterministic mortgage amortization. Stocks value is auto-populated from holdings.

Asset Allocation Total: —

Cash / Savings

%

Volatility: 1% — very stable

Stocks / ETFs

%

Volatility: 16% — high risk

Bonds / Fixed Income

%

Volatility: 6% — moderate risk

Mortgage

Outstanding Balance (EUR)

Interest Rate (%)

%

Monthly Payment (EUR)

Leave at 0 if no mortgage.

Settings

Years to Project 30

540

Confidence Interval

Net Worth Projection

Net Worth Mortgage Confidence Band

Configure parameters and click Run Forecast

Methodology

Geometric Brownian Motion (GBM)

Each asset class is projected independently using a simplified GBM model. The mean path is deterministic compound interest; the confidence bands scale with time:

mean(t)  = S₀ × (1 + r)^t
upper(t) = mean(t) × e^(+z × σ × √t)
lower(t) = mean(t) × e^(−z × σ × √t)

Asset	Volatility σ
Stocks / ETFs	16%
Bonds	6%
Cash	1%

Mortgage Amortization

The mortgage is reduced month-by-month using standard amortization:

Monthly interest  = balance × (annual_rate / 12)
Principal payment = monthly_payment − monthly_interest

Net Worth = total liquid assets (cash + stocks + bonds) − remaining mortgage balance at each year.

Import / Export

Import transactions from broker files or text, export your data, manage bookings and sync with Google Sheets.

Import from File

Broker / Format

File

Import from Text (AI Extraction)

Paste a broker statement. Works with any broker not directly supported. Detects buy/sell trades and cash deposits/withdrawals.

Export

Download all transactions. CSV is compatible with spreadsheets; PDT (XLSX) is the Portfolio Dividend Tracker format (includes bookings).

Cash Transactions (Deposits & Withdrawals)

Date

Type

Amount

Currency

Portfolio

Loading…

Google Sheets — PDT Sync

Sync directly with a Google Spreadsheet in Portfolio Dividend Tracker format. The sheet must be shared with the service account email shown below.

Spreadsheet ID (the long ID from the URL: /spreadsheets/d/ID/)

Help & Guide

What each page does, where the numbers come from, and a glossary of the abbreviations used across the app.

Pages

Glossary

Data & sources

Prices, fundamentals and news come from Yahoo Finance (refreshed daily at 20:00 UTC; fundamentals/news are cached briefly).

Cost basis, gains and tax use your own transactions (FIFO). Tax is a Spanish IRPF savings-base estimate, not advice.

LLM/AI answers are generated from your data + cited news — informational, not financial advice.

What's New

Recent improvements to Portfolio Manager.

Research Workbench with autocomplete, your position (cost basis, P/L, sell calculator, average-cost chart), Yahoo fundamentals with sources, LLM analysis, and a downloadable Markdown report per ticker.
AI Chat The assistant now reads your real portfolio (holdings, performance, history), renders Markdown, and works in dark mode.
Analytics Split into lazy-loaded tabs (Performance & Net Worth · Dividends · Tax · Risk & Diversification · Fees); per-holding concentration; European benchmarks; clearer tooltips and source labels.
Performance yfinance results cached (sector/country, fundamentals, benchmark, news) and slow lookups moved off the event loop — pages load much faster.
Data New "Index fund" asset type; cash deposits/withdrawals shown inline in Transactions; dashboard shows positions per type.
UI Real dark mode across the app, grouped sidebar navigation, and this Help / What's New section.

About

Portfolio Manager — a self-hosted portfolio & dividend tracker.

Portfolio Manager

Track stocks, ETFs, index funds and crypto across multiple brokers — with imports, dividend & tax analytics, research, AI chat and Google Sheets (PDT) sync. Self-hosted; your data stays on your own server.

pfm.goldhoorn.net Source on GitHub What's New

Privacy

Self-hosted and single-tenant. Market data comes from Yahoo Finance; optional LLM features send only the prompt context you trigger. Nothing is shared with third parties.

Resources

Handy external financial sites — all open in a new tab.

A small, curated list — not exhaustive. Books marked (read) are ones I've read or am reading.

Net Worth

Your whole picture: tracked investments plus off-brokerage assets and liabilities (cash, property, pension, mortgage, loans). All shown in EUR.

Investments

—

Other assets

—

Liabilities

—

Net worth

—

Add asset or liability

Name *

Type

Amount

Currency

It's a debt

Investments are pulled automatically from your tracked holdings — only add things outside the brokerage here.

Assets & liabilities

Name	Type	Amount	EUR
Loading…

Portfolio Manager — Sign in

Portfolio Manager

Dashboard

Wealth Simulator

Assets

Transactions

Holdings

Target Allocation

Analysis

Analytics

Watchlist

Goals

Chat

Portfolios / Brokers

Research

Sell calculator

Average cost vs price over time

Transactions

Wealth Simulator

Geometric Brownian Motion (GBM)

Mortgage Amortization

Import / Export

Help & Guide

What's New

About

Portfolio Manager

Resources

Net Worth

Add New Asset

Add New Transaction

Import from File

Import Transactions from Text

Help

Edit Transaction

Settings

Appearance

Numbers & dates

Defaults

Account

Add Portfolio

Research —

Price Targets