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-- Big Mike, Site Administrator
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am in the middle of testing some strategies using Big Mike's tick data for Multicharts (BIG thanks!), and had some questions in regards to Slippage. Just like Ninjatrader, you are given the ability to include slippage in your backtesting results. This is something that I definitely want to do, it will give myself as clear of a picture as you possibly can get when backtesting. Multicharts explains slippage and the settings to be used as follows:
"Slippage - the amount reserved for differencies between the expected and actual order execution
price. The commission can be set on "per contract" or on "per trade" basis.
With Per Contract option, the Slippage value is multiplied for the each trade by the double
number of contracts in the trade (i.e. for Entry and Exit).
With Per Trade option, the Slippage value is multiplied for each trade by the 2 (i.e. for Entry and
Exit).
The default Slippage value is zero.
My question is, is there a way for an intermediate trader like myself, to figure out slippage for CL, using a 10 range bar, trading during pre-market and normal market hours? All of my studies have revealed its quite complex, but is there a general rule of thumb that some of you use?
Big Mike: When running optimizations and backtesting in Multicharts for CL, what slippage setting do you use (Per Contract, or Per Trade) and what dollar value do you use for that setting? It will give me a base to start from.
Thanks so much for your help!
Can you help answer these questions from other members on NexusFi?
If you are trading under 5 to 10 lots at a time, then 1 tick slippage per contract is usually enough for say Europe open to US close. This assumes a Market order entry, but a limit order exit. So you are giving up 1 tick slippage on the entry.
I would like to solicit experience based opinions about expected slippage vs order size during regular session hours, especially for the ES, TF, CL, and 6E.
I currently do optimizing with 1 contract and 1 tick slippage. The 1 tick seems to reasonably …
AFAIK, that has been proven more or less worthless for any backtesting as it is not sync'd with the 'last'. MultiCharts has the same problem afaik, you can add the bid/ask dataseries but it is not kept in sync with last.
best is to built an separate app, sync the data, feed the same to NT and do the needful. the concept is worth the pain, perticularly in this part of the world where slippage/impact cost is very high and very erratic in nature.