Experimental research tool · Educational use only
The portfolio tool
institutions
would build for themselves.
Upload your trade ledger. Atlas produces a CFA-level tearsheet — 50+ risk metrics, AI-written briefs, what-if simulations, tax-aware rebalancing illustrations, and a single view that merges your public securities with private equity, angel checks, and real estate. Atlas does not give investment advice; outputs may be inaccurate — always verify with a licensed professional.
Demo loads a sample portfolio — no signup. Or upload your own ledger in under a minute.
Sharpe, Sortino, VaR, CVaR, alpha, tracking error, drawdown episodes, factor loadings.
Observational portfolio read across risk, concentration, factors, tax. Not advice.
Public securities alongside LP commitments, angel stakes, real estate. The whole book.
Write a thesis at entry. Atlas flags drift, stale reviews, triggered exits.
What makes Atlas different
Five features no other portfolio tool ships.
Consumer apps stop at balance and P&L. Pro terminals cost $24k/yr and still don’t do most of this. Atlas fills the gap with specifically the features sophisticated investors actually want.
Public + private book
LP commitments, angel checks, direct startup equity, real estate — merged with your public securities into one total-net-worth view. IRR, TVPI, DPI, uncalled commitment, vintage concentration. No other self-serve tool does this.
What-If Simulator
Describe a scenario in plain English ("sell half my NVDA," "add $50K to VOO"). Atlas parses it into synthetic trades, re-runs the full engine on the hypothetical ledger, and shows the delta across risk, concentration, factor exposure, stress, tax.
Tax-aware rebalancing
Ordered trade sequence that brings you back to your IPS targets while minimizing realized tax drag. Tax-advantaged accounts first, then TLH loss lots, then LT gains, then ST gains last. User-adjustable LTCG / STCG rates.
Investment Thesis tracker
Every position gets a required thesis at entry: why you own it, when you'd exit, what conviction, what horizon. Versioned over time. Atlas flags stale reviews, breached exit triggers, price drift, concentration shifts. The journal nobody else ships.
IPS drift tracking
Define your Investment Policy Statement — equity/bonds/alternatives/cash targets with tolerance bands. Atlas shows real-time drift versus policy, flags buckets out of band, and the Rebalancing tool gives you a tax-aware path back.
Goal-based progress
Define what your portfolio is for — a house down payment, a retirement number, college tuition. Atlas runs 2,000-path Monte Carlo against each goal and shows the funded probability. Three or four goals stack; alerts fire when any drops below your tolerance.
Atlas Brief
AI-written portfolio memo — executive summary, performance & attribution, risk & stress posture, factor positioning, open questions for your advisor. Institutional voice, observational only, clearly AI-generated.
Full feature map
Institutional rigor, self-serve.
Every metric consumer apps skip — computed mechanically on the data you upload and surfaced for your own review. No recommendations, no account linking, no data sold.
Performance & attribution
Period returns from 1D to inception. Top contributors + detractors by dollar P&L. Weight×return quadrant scatter. Group attribution by sector, asset class, account.
Risk analytics
Sharpe, Sortino, Calmar, beta, Jensen's alpha, tracking error, information ratio. Historical and parametric VaR / CVaR at 95% and 99%.
Drawdown analysis
Every drawdown episode with peak, trough, recovery dates. Depth, duration, recovery time, vs-benchmark over the same window. Underwater equity chart.
Factor exposures
Fama-French 3-factor + Momentum regression on your daily returns. Loadings with t-statistics — significance badges when |t| ≥ 2.
Concentration, asset location & hidden costs
HHI, effective-N, top-1/5/10 weights. CFA-grade asset-location commentary keyed by (account category × asset class) — the kind of detail a paid adviser charges to write up. Plus a hidden-costs panel (fund expense ratios + cash drag vs your IPS target) so you can see what your book is actually costing you.
Ten focused tools
Black-Scholes options with full Greeks · Monte Carlo (10k paths) · retirement tracker · Kelly position sizing · bond YTM & duration · 2026 federal tax brackets · RMD projection · Social Security claiming-age · pre-trade tax projection (FIFO/HIFO/LIFO) · pre-purchase impact analyzer. All public, no sign-up required.
Custom stress sandbox
Eight macro shocks (equity, rates, credit, USD, oil, gold, BTC, VIX) plus six sector overlays. 22 named story presets — GFC 2008, COVID, AI bubble pops, China-Taiwan flashpoint. A/B compare mode. Shareable URL state.
Multi-portfolio + household
Keep separate books — Personal, Joint, Trust, Custodial. Merge all portfolios into one household tearsheet with namespaced accounts. Switch active portfolio in one click.
Ledger ingestion
Excel template OR manual entry — including a per-lot mode where each buy keeps its own date and price for accurate term classification, wash-sale flags, and TLH candidates. No OAuth, no brokerage credentials.
Print-to-PDF tearsheet + year-end CPA report
Linear, print-optimized tearsheet covering every section. Plus a one-page year-end CPA report — realized gains/losses with ST/LT/wash flags, dividend income by account, lot-level basis snapshot — designed to email your accountant in late December.
Smart email alerts
Three or four emails a quarter, only when something matters. Thesis exit-trigger breaches, IPS-band breaches, position concentration crossings (10/15/20%), a quarterly stale-thesis digest, and a November TLH-window email. The discipline of not notifying is on purpose.
Private by default
Your ledger and theses are encrypted at rest and scoped to your account. Delete anytime. We never share, sell, or train models on your portfolio data.
Workflow
Four steps. No API keys. No linked accounts.
- 01
Upload or enter
Drag in an Excel ledger or type holdings via the manual-entry form. Atlas parses trades, pulls live prices, builds positions.
- 02
Add your IPS, theses & goals
Define target allocation bands. Write a 2-sentence thesis per position so Atlas can flag drift. Add a goal or two so Atlas knows what your portfolio is actually for.
- 03
Layer in private assets
Add LP commitments, angel checks, and real estate. Atlas computes IRR, TVPI, DPI and merges them into your total NAV.
- 04
Read the tearsheet
Full IB-style dashboard. Run What-If scenarios, generate the AI Brief, export to PDF for your advisor.
Ready to see your entire portfolio — public and private — through an institutional lens?
Free to use. Your trade data stays private and can be deleted anytime. Atlas is an experimental research tool — not an investment adviser, no recommendations, and numbers may be wrong.
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