Augubhai, could u pls tell me how much slippages u usually see when the trades gets filled? Say, in orb high is 450rs in a stock, when u place buy SL -Market order, at what price will it get filled? @ 450 or 450.25 ??
Just curious to know as I heard that slippages will be high for breakout trades.
I have the data for NF from Feb series onwards. The average slippage per trade for my order size has been 30 paise. For SBI, I have the data for the Apr series. The average slippage has been 29 paise. I am comfortable with the NF slippage, but the SBI slippage is high even with my small position size.
Slippage depends on many factors.
1. Time of day. Expect good fills at day open (though this is difficult to measure) and close, because of of high volumes.
2. Liquidity. The more liquid the scrip, the better the fills. This is the concern that I have in increasing the size of my SBIN trades.
3. Momentum. This may contradict points 1 and 2, but if the price reaches the trigger point with a lot of momentum, then there can be big slippages and freak trades. For example on Friday, my SBIN entry triggered at 2068.3 and filled at 2070.65 - slippage 2.35. The contradiction is that momentum is usually high volume period, and momentum can occur at day open.
4. Price point. If your buy trigger is at 2069.9, then expect a better fill than if it was at 2070.1. For increasing size of SBIN trades, i will have to work out the rules to enter before the round figure numbers. However, if its a big round number like 2100, u can expect lower slippage because there will be a lot of orders at that point (unless they get eaten up by a high momentum move)
Many times there are positive slippages as well. And I have had instances (not yet this year) where my orders on NF have slipped by as much as Rs. 8 during low momentum periods. Best is to start trading and check out the slippage for your position size. Or try smart stuff like SL-Limit or Limit orders.