Quantopian Community
Trying on for size: a technical framework
104 views
2 replies
Backtest-54f31acec7fdc60f0fb79b28
avoiding de-listing of securities
172 views
4 replies
Using our own data sources
11 views
0 replies
How to create a symbol from string?
109 views
12 replies
cloned "Multiple Securities" program does not build
11 views
0 replies
volume spike purchasing formula
109 views
5 replies
Why can't I call history in before_trading_start()?
43 views
1 reply
Backtest-54f017c719f3cc0f1164dfc6
CSSAnalytics - A Simple Tactical Asset Allocation Portfolio with Percentile Channels
577 views
17 replies
Array Transforms
40 views
2 replies
Starting with not so much $
154 views
7 replies
How can I get the 200 largest company tickers from NASDAQ to update monthly?
42 views
1 reply
Backtest-54e0883c0ded0c0f099c5606
mean reversion w/ scipy.optimize.minimize
1.3k views
19 replies
zipline question
57 views
3 replies
What's the appropriated way to give rating to any trading system?
33 views
1 reply
Need Help Porting Profitable "Honey Badger" Python Script to Quantopian
293 views
11 replies
Backtest-54dc0438bb5f8f0dc77cbb0a
How to dig a hole looking for GLD
383 views
4 replies
The fundamentals filter not allowed in live trading?
176 views
4 replies
Quantopian Managers Program - Algorithm Selection & Compensation
3.1k views
50 replies
Can you get 52 week-high without fetching outside data?
240 views
4 replies
Moving averages
96 views
3 replies
ATR looking back n days using talib
75 views
2 replies
Datetime compare with string
27 views
1 reply
how to get zipline work within a proxy network
31 views
1 reply
Fundamentals now available for Quantopian Open, Quantopian paper trading
100 views
0 replies
Backtest-54f1c29876c0ad0f0a06bc75
Overreaction
184 views
9 replies
Sneak Peek: Using a Quantopian Research Notebook to Analyze Share Buyback Data
2.9k views
11 replies
Is the contest being gamed?
2.6k views
107 replies
Backtest-54f3c5a6973501313d754bbf
MACD-Mean-Reversion Strategy encountering KeyErrors with specific securities
77 views
2 replies
Error: Execution Timeout
292 views
31 replies
Close all current Positions and cancel their limit and stop orders (for one open position)
37 views
1 reply
Python Help: Sample Fundamentals 1 Algo
63 views
2 replies
Schedule Function Problem
57 views
2 replies
Default commission model very different from IB fees
83 views
3 replies
Has anyone translated Wouter and Butler's new Elastic Asset Allocation model into python script?
51 views
0 replies
Automated signals instead of trading
261 views
10 replies
Sample algo for weekly picks of 3-4 symbols based on ranking/sort of 15 symbols
157 views
7 replies
Symbols() with dictionary as input for a clean rotation strategy code
32 views
2 replies
Snapshot
ValueError: cannot convert float NaN to integer
29 views
1 reply
Quantopian Open: Twitter Updates
210 views
6 replies
Backtest-54f1d34efe47240f18436f25
Differences between Minute and Daily Backtests
75 views
1 reply
Help with scipy.optimize error?
44 views
2 replies
Quantopian Open: One Races to the Finish Line, Another Starting Gun Goes Off
239 views
6 replies
How to use scipy and optimize
57 views
1 reply
DIY HFT Algobot
513 views
13 replies
Universe Changes breaking backtest indicators
52 views
2 replies
array operation with numpy ndarray
49 views
2 replies
Looking for minimum price during a period of time and it's datetime
88 views
5 replies
Backtest-54e990d61c23310f0a01a9cb
Why don't stop losses execute?
381 views
9 replies
protection for fetch data
38 views
0 replies
Books to learn coding
219 views
3 replies