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Difference between Minute and Day backtesting

Hello,

I am new to the site and new to investing. I have created an algo to take advantage of momentum trading with two leveraged indices. (XIV and UVXY). The algo is set to trade at most once per day. When I run the backtest using the daily setting the returns are significantly better than if I run it in minute setting. How is this possible if I am only allowing the algo to trade once dailys.

Thanks
Neil

2 responses

interesting question... I'm quite interested in that myself...
What I'm thinking is that it's because of Quantopian's lag in executing the orders maybe... sometimes the lag can work in your favor, sometimes against you..

Quantopian team, if you're seeing this.... where can one learn more about the lag in Quantopian's orders?
ex: Why would a market order placed at 3PM today be executed the next day and not before the close?

thanks!

Neil, Ben take a look at this thread: https://www.quantopian.com/posts/differences-between-minute-and-daily-backtests

TLDR: Minute mode gets price updates minutely whereas daily mode gets price updates once per day. To better simulate paper trading and real money trading, you should develop your algo using minute mode.

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