##### Python stock momentum

GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. In this project, we will implement a momentum trading strategyand test it to see if it has the potential to be profitable.

We are supplied with a universe of stocks and time range. We are also provided with a textual description of how to generate a trading signal based on a momentum indicator. We will then compute the signal for the time range given and apply it to the dataset to produce projected returns.

Finally, we will perform a statistical test on the mean of the returns to conclude if there is an alpha in the signal. For the dataset, we will use the grace rag n bone man lyrics of day from Quotemedia. We will also make things a little easier to run by narrowing down our range of time period instead of using all of the data. Udacity doesn't have a license to redistribute the data to us.

They are working on alternatives to this problem. If we try to graph all the stocks, it would be too much information. The trading signal we'll develop in this project does not need to be based on daily prices, for instance, we can use month-end prices to perform trading once a month. To do this, we must first resample the daily adjusted closing prices into monthly buckets, and select the last observation of each month.

A trading signal is a sequence of trading actions, or results that can be used to take trading actions. A common form is to produce a "long" and "short" portfolio of stocks on each date e.

This signal can be interpreted as rebalancing your portfolio on each of those dates, entering long "buy" and short "sell" positions as indicated. For each month-end observation period, rank the stocks by previous returns, from the highest to the lowest. Select the top performing stocks for the long portfolio, and the bottom performing stocks for the short portfolio.

We'll start by computing the net returns this portfolio would return. For simplicity, we'll assume every stock gets an equal dollar amount of investment. This makes it easier to compute a portfolio's returns as the simple arithmetic average of the individual stock returns. The annualized rate of return allows you to compare the rate of return from this strategy to other quoted rates of return, which are usually quoted on an annual basis.

Our null hypothesis H 0 is that the actual mean return from the signal is zero. We'll perform a one-sample, one-sided t-test on the observed mean return, to see if we can reject H 0. T-test returned a p-value of 0.

This is a very high p-value so we cannot reject the null hypothesis. We come to the conclusion from t-test that our signal was not strong enough to give us positive returns. In other words, our signal is not profitable.In this post we will look at the momentum strategy from Andreas F.

Momentum strategies are almost the opposite of mean-reversion strategies. A typical momentum strategy will buy stocks that have been showing an upward trend in hopes that the trend will continue.

Trade once a week. In his book, Clenow trades every Wednesday, but as he notes, which day is completely arbitrary. Position size is calculated using the day Average True Range of each stock, multiplied by 10 basis points of the portfolio value. As we can see, the regression curves fit each stock pretty well; The stocks do not seem to follow the curve outside of the measurement window, but it is important to remember that this momentum indicator is only used for ranking the stocks, and is in no way trying to predict prices.

Each stock is assigned a size using the following formula:. The risk factor, in our case, will be 10 basis points 0. We are essentially normalizing the weights all of the stocks in our portfolio by risk. As we can see the algorithm performs pretty well. Overall, this algorithm provides a good base for a momentum strategy and can likely be improved by altering parameters, applying filters, and adding leverage.

If you would like to try the the strategy for yourself, you can find this notebook on my Github, along with my survivorship bias-free dataset! Every other week, rebalance existing positions with updated Average True Range values. SimpleMovingAverage self. SimpleMovingAverage d. Value cerebro. Returns cerebro.

DrawDown cerebro. Sharpe: 1. Annual Return: 8.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.

An example algorithm for a momentum-based day trading strategy. This script uses the API provided by Alpaca.

**How To Trade Using Momentum/Trend (Live Example)**

A brokerage account with Alpaca, available to US customers, is required to access the Polygon data stream used by this algorithm.

You can get all that information from the Alpaca dashboard. Replace the placeholder strings with your own information, and the script is ready to run with python algo. Please note that running with Python 3. This algorithm may buy stocks during a 45 minute period each day, starting 15 minutes after market open. The first 15 minutes are avoided, as the high volatility can lead to poor performance.

It also checks that the volume is strong enough to make trades on reliably. It sells when a stock drops to a stop loss level or increases to a target price level.

If there are open positions in your account at the end of the day on a symbol the script is watching, those positions will be liquidated at market. Potentially holding positions overnight goes against the concept of risk that the algorithm uses, and must be avoided for it to be effective. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. Python Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again.

### Subscribe to RSS

Latest commit. Latest commit be Sep 13, Momentum-Trading-Example An example algorithm for a momentum-based day trading strategy. Algorithm Logic This algorithm may buy stocks during a 45 minute period each day, starting 15 minutes after market open. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Feb 12, A trading strategy is a fixed plan that is designed to achieve a profitable return by going long or short in markets.

A trading strategy should be backtested before it can be used in live markets. Strategies can be categorized as fundamental analysis, technical analysis, or algorithmic trading. In this article, we will focus on technical analysis. Technical analysis is a statistical methodology for forecasting the direction of prices through the study of past market data, primarily price, and volume.

Technical Analysis focuses on trend, support, resistance, and momentum through the use of chart reading to help investors and traders get into and out of higher probability trades. This article will focus on measuring the volatility and strength of stock prices.

Disclaimer: Do not trade with this strategy, using a trading strategy without backtesting is very risky and not recommended. The purpose of this article is to help you understand an easy way to calculate RSI and volatility values of stock prices. In simple terms, momentum is the speed of price changes in a stock.

The basic idea of a momentum strategy is to buy and sell according to the strength of the recent stock prices. The momentum is determined by factors such as trading volume and rate of price changes.

Momentum traders bet that a stock price that is moving strongly in a given direction will continue to move in that direction until the trend loses strength. Why should momentum be part of a trading strategy? If you understand the fundamentals of trading, you know that trend is an important concept of technical analysis. Trend indicates the general direction the market is moving in a specific period of time.

A trend can be upward increase in price or downward decrease in price. Many strategies rely on identifying whether the market is in a trend or not â€” and from there, working out if a trend is beginning or coming to an end.

Knowing whether a trend is starting up or just about to break down is an extremely useful piece of information to have at your disposal. Part of knowing whether a trend will continue or not comes down to judging just how much strength lies behind the trend.

This strength behind the trend is often referred to as momentum, and there are a number of indicators that attempt to measure it. For this article, we will be using the RSI indicator. The RSI indicator provides signals that tell investors to buy when the security is oversold and to sell when it is overbought. High RSI usually above 70 may indicate a stock is overbought, therefore it is a sell signal.For this post, I want to take a look at the concept of intra-day momentum and investigate whether we are able to identify any positive signs of such a phenomenon occurring across quite a large universe of NYSE stocks.

Where their study lacked depth number of instruments studiedmy data contains around individual stocks, however, where they tested over a long time period 20 years my data spans only 1 year.

We can but tryâ€¦.

The chart below shows what we are looking for â€” a daily price path that displayed the same overall direction in the first 30 minutes as it does in the last 30 minutes at least 30 minutes is our starting gambit for a reasonable window as this is the window period used in the aforementioned research paper â€” we can perhaps play around with this value at some point.

The overall return for the two window periods can be either up or down, as long as daily moves are in the same direction. As in the previous post I shall be using data sourced from AlgoSeek. Even aside from the gulf in quality, it is just next to impossible to source intraday stock data for free at least in my experience. I believe AlphaVantage still has an API that allows intra-day downloads, although I have used them before for various pet projects and research efforts and quickly realised my results were being badly affected by the dubious quality.

As always we begin with our module imports. I have also set the value of the default matplotlib figure to be 12 x 8, as I find the normal default value to be too small for my liking. Saying as I was dealing with s of stocks over a 1-year periodeach one containing minute by minute data and an accompanying 57 odd columns of data per 1-minute bar i.

Once extracted and moved across into a series of SQLite databases it grew 10x in size and currently sits at around GB. Dask, use of specialised Pandas arguments and methods to deal with limitations, paying special attention to data types used to store data etc.

If we just run a few simple tests and time each one, we can get an idea of the speed up we can expect by substituting in feather files for the bog-standard CSV files we all usually default to. I have a Pandas DataFrame that currently holds rows and columns, socells in total. It is showing as being 1. The first attempt registered at 6 minutes and 1 second for the complete write time.

The clock registered Better than the 6 minutes taken to write the file to disk, but if you keep reading it in, again and again, that time is going to stack up!

## Python For Finance: Algorithmic Trading

Againâ€¦just 1.A trading strategy is a fixed plan that is designed to achieve a profitable return by going long or short in markets. A trading strategy should be backtested before it can be used in live markets. Strategies can be categorized as fundamental analysis, technical analysis, or algorithmic trading. In this article, we will focus on technical analysis. Technical analysis is a statistical methodology for forecasting the direction of prices through the study of past market data, primarily price, and volume.

Technical Analysis focuses on trend, support, resistance, and momentum through the use of chart reading to help investors and traders get into and out of higher probability trades. This article will focus on measuring the volatility and strength of stock prices.

Disclaimer: Do not trade with this strategy, using a trading strategy without backtesting is very risky and not recommended. The purpose of this article is to help you understand an easy way to calculate RSI and volatility values of stock prices.

In simple terms, momentum is the speed of price changes in a stock. The basic idea of a momentum strategy is to buy and sell according to the strength of the recent stock prices. The momentum is determined by factors such as trading volume and rate of price changes.

Momentum traders bet that a stock price that is moving strongly in a given direction will continue to move in that direction until the trend loses strength. Why should momentum be part of a trading strategy?

## Momentum Strategy from "Stocks on the Move" in Python

If you understand the fundamentals of trading, you know that trend is an important concept of technical analysis. Trend indicates the general direction the market is moving in a specific period of time. A trend can be upward increase in price or downward decrease in price.

Many strategies rely on identifying whether the market is in a trend or not â€” and from there, working out if a trend is beginning or coming to an end. Knowing whether a trend is starting up or just about to break down is an extremely useful piece of information to have at your disposal. Part of knowing whether a trend will continue or not comes down to judging just how much strength lies behind the trend. This strength behind the trend is often referred to as momentum, and there are a number of indicators that attempt to measure it.

For this article, we will be using the RSI indicator. The RSI indicator provides signals that tell investors to buy when the security is oversold and to sell when it is overbought. High RSI usually above 70 may indicate a stock is overbought, therefore it is a sell signal. Low RSI usually below 30 indicates stock is oversold, which means a buy signal.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. You can create a rolling object:. Here, np. Those rolling averages are basically uniform filtered values.

Hence, we can use SciPy's uniform filter. Learn more. Efficient way to find price momentum in python: averaging last n entries of a column Ask Question. Asked 2 years, 2 months ago. Active 2 years, 2 months ago. Viewed 3k times.

Brad Solomon Active Oldest Votes. Brad Solomon Brad Solomon You can use np. Series np. Hence, we can use SciPy's uniform filter - from scipy. Divakar Divakar k 14 14 gold badges silver badges bronze badges. Faster and over my head, as usual. I cannot infer from the docs. BradSolomon Essentially pads at the start with reflected elements of length W Sign up or log in Sign up using Google.

Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new responseâ€¦.

Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow.