Algorithmic Trading Group Forum - Testing an algo-trading system w/ no ask/bid value

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Testing an algo-trading system w/ no ask/bid value (Read 5092 times)

npr

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Testing an algo-trading system w/ no ask/bid value
07/01/11 at 17:30:57

Hello all,

I am testing an algorithmic trading program on intraday historical data that does not include bid and ask values.

it seems that the only price I can use is the LAST or the close which is the last transaction of the former minute (it's a 1 minute intervals data)

this of course poses a problem as it is Not guaranteed that I will be able to actually get a price identical to the Last value.

How would you suggest to handale this ?

THANKS !
npr

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Re: Testing an algo-trading system w/ no ask/bid value
Reply #1 - 07/06/11 at 13:19:37

It really depends on the time frames your strategy is trading in. For example, for a strategy that trades off daily bars, your data is granular enough to estimate the probability of execution on the assumption of sufficient liquidity. To obtain more representative performance numbers, I suggest you take the spread and slippage into account. Both can be a function of volatility.

"Success is the sum of small efforts, repeated day in and day out..."

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npr Newbie Offline I like this forum! Posts: 5	Re: Testing an algo-trading system w/ no ask/bid value Reply #2 - 07/06/11 at 13:29:54 Thank you Algo Designer .
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