Build Your Own Bot: Stock Bots vs the S&P 500

Paper trading only. This is a paper-trading bot experiment with no real money. Nothing here is financial advice. Full disclaimer

Build Your Own Bot

Start from one of our bots or make your own rules, and see which of today's AI-scored stocks your bot would buy and how much. Everything runs in your browser on 349 scored stocks. Paper money only. See how it works for what the scores and grades mean.

Name your bot

1. START FROM A BOT

2. YOUR MONEY

Paper money ($)Suggested: $50,000 (like our bots)

Boxes (5-100)Suggested: 20-40 to start

How each buy is sized

Smallest buy (× even box)

Largest buy (× even box)

An even box =

Box 1 share (%)Each next box a little less; all boxes add up to 100%.

More settings

3. WHO PASSES

Minimum scoreSuggested: 80 or more

Worst gradeSuggested: C

Min 1-year gain %Suggested: 20%

Max 1-year gain %Blank = no limit

Min 5-year gain %Suggested: 100-130%

Newest score must beat its last 4 reports

Rising trend only

Skip lowered or withdrawn guidance

Buy only right after a new earnings report

4. RANKING AND WEIGHTS

Rank stocks by

Newest score

Score trend

Valuation grade

1-year gain sweet spot

5. SELL RULES

Hook: drop from high %Blank = offSuggested: 20-30%

Max per sector %Blank = offSuggested: 25%

Sell if score belowBlank = offSuggested: 70-75

Sell at gradeSuggested: D

Sell half when up %Blank = offSuggested: 100% (doubled)

Sell if a new report lowers guidance

6. HOW YOUR BOT STARTS

Autopilot Buys its picks right away and keeps trading by your rules every day. I'll pick Starts with cash. You choose what to buy and when to sell; your rules suggest.

Start this bot runs it in your browser on My bots: it trades by these rules every market day, and you can enter it in the Bot Tournament.

The download is your own copy: your settings, today's picks as your starting portfolio, live prices from Google Finance, and a "What to do" column that tells you when to sell.

How to open it in Google Sheets

Open a blank Google Sheet, then File > Import > Upload, choose the file and pick Replace spreadsheet.
If Google asks to Allow access, click Allow (that loads each day's scores).
Your tabs are at the very bottom of the screen:

Start with My Bot. Some tabs fold extra detail columns away: click the small + above the column letters to open them.

Your bot

Boxes are filled best first until the boxes or the money run out.

STOCKS

INVESTED

CASH LEFT

AVG RATING

Box	Stock	Company	Score	Grade	1-year	5-year	Rating	Buy $	Status

New to investing? Words to know

Everything on this page in plain words. The full manual is how it works.

Earnings report: Every 3 months a company publishes how much it sold and earned. That's what we score.
Score (0-100): An AI reads each earnings report and grades it: 90+ is excellent, under 70 is weak.
Trend: Are the last 4 reports better than the 4 before them? Positive means the company is improving.
Grade (A-F): Is the price fair for how fast the company grows? A is a bargain, F is very expensive.
Guidance: The company's own forecast for the next months. "Lowered" is a warning sign.
Rating: One number from 0 to 1 that mixes score, trend, grade and the 1-year gain. Higher gets bought first.
Box: One spot in your bot for one stock. More boxes means smaller amounts spread over more stocks.
Sector: The industry a company belongs to. There are 11, like Technology, Energy or Healthcare.
Diversification: Spreading your money over many stocks and sectors, so one bad area can't sink your whole bot. "Max per sector %" does this for you.
Fresh report: An earnings report that came out since the last market close. Some bots only buy then.
Hook (trailing stop): If a stock falls this far below its best price since you bought it, sell it. Protects gains.
S&P 500: The 500 biggest US companies together, the usual measure of "the market". Beating it is the goal.
Paper trading: Practice with pretend money. No real money is ever involved.