Quantopian Community
volume spike purchasing formula
6 views
0 replies
Sample algo for weekly picks of 3-4 symbols based on ranking/sort of 15 symbols
96 views
6 replies
Need Help Porting Profitable "Honey Badger" Python Script to Quantopian
79 views
2 replies
Backtest-54f1c29876c0ad0f0a06bc75
Overreaction
78 views
5 replies
Default commission model very different from IB fees
34 views
1 reply
Backtest-54e0883c0ded0c0f099c5606
mean reversion w/ scipy.optimize.minimize
1k views
16 replies
Snapshot
ValueError: cannot convert float NaN to integer
21 views
1 reply
Backtest-54f017c719f3cc0f1164dfc6
CSSAnalytics - A Simple Tactical Asset Allocation Portfolio with Percentile Channels
303 views
10 replies
Quantopian Open: Twitter Updates
182 views
6 replies
Backtest-54f1d34efe47240f18436f25
Differences between Minute and Daily Backtests
42 views
1 reply
Help with scipy.optimize error?
40 views
2 replies
Quantopian Open: One Races to the Finish Line, Another Starting Gun Goes Off
210 views
6 replies
How to use spicy and optimize
39 views
1 reply
Quantopian Managers Program - Algorithm Selection & Compensation
2.8k views
43 replies
DIY HFT Algobot
452 views
13 replies
Automated signals instead of trading
219 views
9 replies
Universe Changes breaking backtest indicators
48 views
2 replies
array operation with numpy ndarray
44 views
2 replies
Looking for minimum price during a period of time and it's datetime
79 views
5 replies
ATR looking back n days using talib
45 views
0 replies
Backtest-54e990d61c23310f0a01a9cb
Why don't stop losses execute?
352 views
9 replies
protection for fetch data
35 views
0 replies
Books to learn coding
195 views
3 replies
Is it possible to use other Python Libraries alongside the Quantopian API?
111 views
2 replies
'portfolio.pnl' Calculation Error? Example provided...
86 views
7 replies
Who is going to the QuantCon?
616 views
19 replies
VIX Futures Strategy / Trouble Importing .csv
128 views
2 replies
Backtest-545157ce725ad909083b4e68
Earnings drift with Estimize
3.8k views
24 replies
Research: Stepping through Crowdsourced Earnings Data with Estimize
179 views
0 replies
How to use 100% Total Margin Live-Trading with Interactive Brokers
106 views
1 reply
Data or backtesting engine bug
114 views
3 replies
What is wrong with my syntax? All I changed was the stocks to buy.
83 views
3 replies
Excellent Quantitative Economics reference website
581 views
5 replies
Adding drag from monthly minimum/margin
65 views
3 replies
Backtest-54e9460bdf19550f129277ca
Why does the number of positions (and leverage) creep up for this algorithm?
198 views
8 replies
Real automated trades
112 views
4 replies
Backtest-54e696ddd5f28d0f1a4a7722
This code is calling a stock on a date that has already passed
138 views
4 replies
Backtest-54eb62bfe0f6970f08eb76da
Why is my algo trading on Sundays?
153 views
1 reply
the example problem
96 views
2 replies
optimization library other than scipy.optimize?
56 views
0 replies
Backtest-54e4ab4fc213650f0114139c
Quantopian Open: Example algorithm to control leverage
322 views
1 reply
Backtest-54eb808aa638a10f0717f1f3
New Trading Guard to Exclude Leveraged ETFs from Algo Universe
195 views
0 replies
The fundamentals filter not allowed in live trading?
137 views
3 replies
Research and Algo: Looking for Drift, an Event Study with Share Buybacks Announcements
1.5k views
3 replies
Research: Investing in Women-led Fortune 1000 Companies
7.7k views
15 replies
How do I convert minute bars into 15 minute bars?
163 views
5 replies
backtesting of sector stocks
134 views
2 replies
I am not sure why I am unable to call the last trade price.
97 views
3 replies
Jonathan Kinlay on Developing Statistical Arbitrage Strategies Using Cointegration
203 views
1 reply
How to get opening price info before the bell
162 views
6 replies