r/algotrading is a subreddit with 1.9M members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses backtesting, trading, market, data, and api, and they frequently recommend/review trading book and stock screener.
A place for redditors to discuss quantitative trading, statistical methods, econometrics, programming, implementation, automated strategies, and bounce ideas off each other for constructive criticism. Feel free to submit papers/links of things you find interesting.
Popular Themes in r/algotrading
#1
Solution Requests
: "Looking for a cheap stock data API provider that allows commercial use"
14 posts
#2
Advice Requests
: "Need more advanced books"
12 posts
#3
Pain & Anger
: "Where did I go wrong? A failed strategy after 3 months of Constant Work"
3 posts
#4
Self-Promotion
: "I open-sourced my Polymarket market-making bot (MIT)"
1 post
Popular Topics in r/algotrading
#1
Backtesting
: "My backtest was lying to me and i didn't notice for 3 weeks"
11 posts
#2
Trading
: "Two quotes that made me profitable in Trading."
10 posts
#3
Market
: "I open-sourced my PolyMarket Market-making bot (MIT)"
6 posts
#4
Data
: "Looking for a cheap stock Data API provider that allows commercial use"
5 posts
#5
Api
4 posts
#6
Strategy
: "A bug in my code accidentally made my Strategy profitable"
4 posts
#7
Bots
: "Where do you Backtest your Bots?"
4 posts
#8
Brokerage
3 posts
#9
Algorithmic Trading
3 posts
#10
Ai
: "Update on the Ai vs Polymarket Project -"
3 posts
Products Discussed in r/algotrading
Trading Book
12 reviews
#1
Rob Carver
3.0★ from 2 reviews
#2
Ernie Chan
1.0★ from 1 review
#3
Sinclair
4.0★ from 1 review
Stock Screener
2 reviews
#1
TradingView
5.0★ from 1 review
#2
Finbox
4.0★ from 1 review
Flair Used in r/algotrading
#1
Strategy
: "On switching to a commission-free broker for algo trading (spoiler: it matters a lot for our algo)"
64 posts
#2
Data
: "Data provider tier list"
48 posts
#3
Education
: "Two quotes that made me profitable in trading."
23 posts
#4
Infrastructure
: "Databento is amazing. i just fetched OHLCV-1m mes and mnq entire history data, my backtest will be so happy to get this bar data."
21 posts
#5
Other/Meta
: "״Money-Printing Machine״"
19 posts
#6
Career
: "Quant Shop tier list"
3 posts
#7
Research Papers
: "The biggest trading study ever (43M trades) EXPLAINS WHY most traders lose money. The lesson is also valid for algo traders."
2 posts
#8
News
: "QQ EA blew up user accounts yesterday"
1 post
#9
Business
: "Does anyone here actually trade, and do so successfully?"
1 post
Member Growth in r/algotrading
Yearly
+79k members(4.4%)
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Last updated: August 4, 2026