This is a trading item or a component that was created using QuantShare by one of our members.
This item can be downloaded and used by QuantShare Trading Software.
Trading items are of different types. There are data downloaders, trading indicators, trading systems, watchlists, composites/indices...
You can use this item and hundreds of others for free by downloading QuantShare.
Top Reasons Why You Should Use QuantShare:
Works with US and international markets (stock, forex, options, futures, ETF...)
Offers you the tools that will help you become a profitable trader
Allows you to implement any trading ideas
Exchange items and ideas with other QuantShare users
Our support team is very responsive and will answer any of your questions
We will implement any features you suggest
Very low price and much more features than the majority of other trading software
This is a survivorship bias-free S&P 500 database downloader. With this downloader you will be able to test your strategies with more realistic expectations.
I have created this script thanks to this blog post: Getting Accurate Backtesting Results: Survivorship bias-free S&P 500.
Original author is Quantshare Team. Thank You QS!
More info about Survivorship bias-free
"You may be surprised how backtesting results can hugely change depending on the data you are using. If you are trading stocks from a particular index you may get completely different results depending on whether you are applying a static list of stocks (Stocks that compose that index today) or a dynamic list that simulate the index composition at any moment in the past.
The survivorship bias can hugely affect your trading strategy backtesting results. You will end up buying stocks that are currently included in your reference index but are not part of that index at the time the stock was purchased. Creating a survivorship bias free database for the indices you are trading should be a very important step in your strategy development process.
The composition of any index changes over time; there are many reasons that can explain why a stock is delisted from an index. Bankruptcy, merging with another company, transferred to another exchange or failing to meet an exchange listing requirements are some of these reasons.
"
Trading financial instruments, including foreign exchange on margin, carries a high level of risk and is not suitable for all investors. The high degree of leverage can work against you as well as for you. Before deciding to invest in financial instruments or foreign exchange you should carefully consider your investment objectives, level of experience, and risk appetite. The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose. You should be aware of all the risks associated with trading and seek advice from an independent financial advisor if you have any doubts.
