Past Lantr student project · Hosted demo · Paper trading

Describe the kind of investor you are. The analyst checks the live market, prepares trade ideas within your risk limits, and waits for your approval before placing anything in the paper account.

Paper trading only — no real moneyA rules-based risk check reviews every orderNothing executes without your approval
analyst.lantr.site
Portfolio · paper
$103,204.55
+$3,204.55 (+3.2%) all time
NVDA12 shares+4.1%
VOO7 shares+1.8%
TSLA5 shares−2.3%
New proposal · from your analyst
Buy 8 × MRVL≈ $1,140

AI-datacenter momentum; fits your “cautious tech” tilt without breaching the 15% position cap.

  • Within position cap
  • Cash floor kept
  • Listed, liquid, above $3
ApproveReject

Simulated — paper trading only.

The student’s finished workspace, running on live market data.

What it does

What your analyst handles

Investor profile
“Cautious tech investor, prefers dividends, avoids meme stocks.”
Parsed preferences
RiskModerate
TiltTech · dividends
AvoidMeme & penny stocks

Start with your investing style

You might say, “cautious tech investor, prefers dividends, avoids meme stocks.” The analyst turns that into a profile with clear preferences and updates it whenever your views change.

Live research
NVDARSI 61+4.1%
MRVLSMA↑+2.6%
TSLAHigh vol−2.3%
Research done: a target allocation and 3 proposed orders, each with its reasoning.

Research on live markets

It screens market movers, reads news and indicators such as SMA, RSI, volatility, and drawdown, then prepares a target allocation and up to five proposed orders with an explanation for each one.

Risk checks
Position cap ≤ 15%
Cash floor ≥ 10%
Listed & liquid
Buy 40 × PLTR — over the cap, blocked

Rules run in code, not in the model.

Risk limits checked in code

Position caps, order limits, cash floors, and penny-stock filters are regular software rules. Any proposal that falls outside your limits is stopped before it reaches the order screen.

Waiting on you
Buy 8 × MRVL≈ $1,140

Fits your tech tilt; stays under the position cap.

ApproveReject
Last rejection: “too concentrated” — noted for the next report.

You decide on every order

Each idea arrives as an order ticket. You can approve it, change the size, or reject it and explain why. The analyst uses that feedback during the next round of research.

Scheduled research
Morning scanDaily · 9:30
Weekly portfolio reviewMon · 8:00
Semiconductor deep diveMonthly · 1st

Reports wait in your workspace when a run finishes.

Research that runs on schedule

Set a morning scan, a weekly portfolio review, or a sector deep dive. The report will be waiting in your workspace when the scheduled run finishes.

Discover
AAPLWatchlist+1.2%
AMDTop mover+5.8%
NKETop loser−3.4%

A market you can explore

The Discover tab brings together top movers, charts, holdings, and your watchlist. Open any US ticker to see the detail or send it to the analyst for a closer look.

How it works

Set your preferences, then review each idea.

1

Open your private demo

A private $100k paper portfolio opens instantly, with sample holdings ready to explore.

2

Describe how you invest

Share your goals and limits in chat. The analyst drafts an investor profile for you to review before it becomes active.

3

It researches and proposes

Run research whenever you like or put it on a schedule. Every trade idea passes the same risk checks.

4

Review the order and leave feedback

Approved orders go to the paper account. If you reject one, your reason becomes useful context for the next report.

How the student built it

The product grew one feature at a time.

A past Lantr student began with a simple portfolio screen and released an early version. Live market tools, AI research, risk checks, user accounts, and scheduled reports came next. Lantr now hosts the finished project for visitors to explore.

Read the source on GitHub
Next.jsTailwindFastAPILangChainDeepSeekAlpaca Paper APISupabaseRailwayVercel
The student's direction

Built from one student’s interest in finance and AI.

The student wanted to understand how market research, software, and investor judgment could work together. Building the product meant making each part work in a real interface.

Finance & Economics

Portfolio construction, risk limits, and market microstructure become working parts of the product.

Computer Science & AI

The AI uses market tools, remembers feedback, and works inside a separate rules-based risk layer.

Data Science & Math

Indicators, screeners, evaluation, and a live data pipeline carry market information into each report.

Try the full workflow with $100k in paper funds.

No signup. Your changes stay private and clear automatically after 24 hours.