I was running some backtests trying to look at the past week and it seems like maybe the data wasn't there. I could have an issue with my code. How up to date is the backtest data?
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Backtesting data -- How up to date is it?
Paul McKinney | January 2017
I was running some backtests trying to look at the past week and it seems like maybe the data wasn't there. I could have an issue with my code. How up to date is the backtest data?
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Jared Broad
We strive to keep the data up to date with yesterday's trading.
Sometimes for one reason or another this can get behind. We changed the backtesting infrastructure late last week to be 60% faster and have more bandwidth so people could get backtest results faster. Because of this we were a few days behind. Its being updated today and it should be caught up by tomorrow.
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Shih Shen
Hi Jared,
I noticed the data is not quite up to date. 2 days behind actually.
The latest data point I got today (4:37 AM August 6, 2020 UTC) is on Aug 3 for symbol SPY and TDOC. Is that expected?
The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
Shih Shen
Hi Jared,
I think I was wrong. I printed the date and prices in OnData function, and I can see the data is very up to date. However, the reason I thought the data is behind 2 days is because the latest date in the chart is at least 2 days behind. Not sure why though.
The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
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