834686cffd
* fix(simplefin): treat Vanguard/Fidelity cost_basis as total when needed PR #1692 normalized SimpleFIN holdings cost_basis under the assumption that the `cost_basis` / `basis` keys carry a per-share value (per the SimpleFIN spec) and only `total_cost` / `value` carry a total position cost. Vanguard and Fidelity violate the spec — they populate `cost_basis` with the *total* (see the payload in #1182). After PR #1692 those holdings get stored with cost_basis = total, and Holding#calculate_trend then computes previous = qty × avg_cost, so the "previous" value is inflated by a factor of qty and an entire investment account renders a phantom return of roughly -(1 − 1/qty), i.e. -97% to -99%. Fix: sanity-check raw cost_basis against the holding's market share price. Let share_price = market_value / qty; the geometric midpoint between "raw is per-share" (raw ≈ share_price) and "raw is total" (raw ≈ qty × share_price) is share_price × √qty. If raw is above the midpoint it is divided by qty; otherwise it is kept as per-share. Falls back to the pre-fix behaviour (trust the spec) when market_value or qty is unavailable, so confidently-correct readings are never made worse. Verified against the reported Vanguard payload (qty=139, cost_basis= 22004.40, market_value=22626.42): normalize_cost_basis now returns $158.31/share, matching 22004.40 / 139, and the phantom -99% return collapses to a realistic ~+2.8%. Per-share readings ($45 cost on a $50 share price) remain untouched. Closes #1718. Refs #1182, #1692. * fixup: replace cost_basis heuristic with institution allowlist Codex and @EdeAbreu23 flagged a real false-positive in the previous geometric-midpoint heuristic: a legitimate per-share `cost_basis` on a holding with a large unrealized loss (e.g. 100 shares with $100/share basis now worth $5/share) trips `share_price × √qty` and gets divided to $1/share — corrupting any standards-compliant brokerage with a big loss. Adopt @EdeAbreu23's safer shape: - total_cost / value: always divide by qty (unchanged from #1692). - cost_basis / basis: keep as-is by default. - Only divide cost_basis / basis when the holding's SimpleFIN account is connected to a known-misbehaving institution. Allowlist starts with `vanguard` and `fidelity`, matched case-insensitively against the account's stored org name and domain. Easy to extend as more brokerages turn up. Trades a small maintenance cost (curated list) for zero risk of corrupting compliant providers. Verified against five scenarios (all expected): Vanguard total in cost_basis (allowlist) → +2.83% Fidelity total in basis (allowlist) → +33.33% Big-loss per-share (Codex case) → -95.0% (preserved) Honest per-share, small loss → +11.11% (unchanged) total_cost on any institution → +11.11% (unchanged) --------- Co-authored-by: plind-junior <plind-junior@users.noreply.github.com>
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Sure: The personal finance app for everyone
Get involved: Discord • Website • Issues
Important
This repository is a community fork of the now-abandoned Maybe Finance project.
Learn more in their final release doc.
Backstory
The Maybe Finance (archived/abandoned repo) team spent most of 2021–2022 building a full-featured personal finance and wealth management app. It even included an “Ask an Advisor” feature that connected users with a real CFP/CFA — all included with your subscription.
The business end of things didn't work out, and so they stopped developing the app in mid-2023.
After spending nearly $1 million on development (employees, contractors, data providers, infra, etc.), the team open-sourced the app. Their goal was to let users self-host it for free — and eventually launch a hosted version for a small fee.
They actually did launch that hosted version … briefly.
That also didn’t work out — at least not as a sustainable B2C business — so now here we are: hosting a community-maintained fork to keep the codebase alive and see where this can go next.
Join us!
Hosting Sure
Sure is a fully working personal finance app that can be self hosted with Docker.
Forking and Attribution
This repo is a community fork of the archived Maybe Finance repo. You’re free to fork it under the AGPLv3 license — but we’d love it if you stuck around and contributed here instead.
To stay compliant and avoid trademark issues:
- Be sure to include the original AGPLv3 license and clearly state in your README that your fork is based on Maybe Finance but is not affiliated with or endorsed by Maybe Finance Inc.
- "Maybe" is a trademark of Maybe Finance Inc. and therefore, use of it is NOT allowed in forked repositories (or the logo)
Performance Issues
With data-heavy apps, inevitably, there are performance issues. We've set up a public dashboard showing the problematic requests seen on the demo site, along with the stacktraces to help debug them.
https://www.skylight.io/app/applications/s6PEZSKwcklL/recent/6h/endpoints
Any contributions that help improve performance are very much welcome.
Local Development Setup
If you are trying to self-host the app, read this guide to get started.
The instructions below are for developers to get started with contributing to the app.
Requirements
- See
.ruby-versionfile for required Ruby version - PostgreSQL >9.3 (latest stable version recommended)
- Redis > 5.4 (latest stable version recommended)
Getting Started
cd sure
cp .env.local.example .env.local
bin/setup
bin/dev
# Optionally, load demo data
rake demo_data:default
Visit http://localhost:3000 to view the app.
If you loaded the optional demo data, log in with these credentials:
- Email:
user@example.com - Password:
Password1!
For further instructions, see guides below.
Setup Guides
- Mac dev setup
- Linux dev setup
- Windows dev setup
- Dev containers - visit this guide
One-click Install
Managed OpenClaw for Sure Finances
License and Trademarks
Maybe and Sure are both distributed under an AGPLv3 license.
- "Maybe" is a trademark of Maybe Finance, Inc.
- "Sure" is not, and refers to this community fork.
