Post #1055:
The fact of the matter is (to quote): ‘It is not unusual for the HSP and LSP to precede the HIP and LOP (made by price) by one day’. That’s easy. However: in the second example on the chart (to the right) it would appear that the LOP preceded the LSP by one day. This is not detailed anywhere. So the question is: CAN the LOP preceed the LSP by one day OR are you supposed to use the LSP made on the same day as the LOP even although it is quite clear that there is no LOP formed by the last bar???
By definition on p. 99: “A HIP is a daily high price with a lower daily high price the day before it and the day after it.” And the same for LOP correspondingly.
So I would say that LOP can preceed the LSP by one day as in your example. This is something that I have not noted so far and need to incorporate in my program.
Post #1056:
If you got into a long trade after the close of the last bar in the chart (it’s a close above a SIGNIFICANT HIGH POINT) then you should be using the previous LSP as your INDEX SAR. The problem in this chart is the fact that point B is in fact the last LSP and it has a lower ASI value than the LSP at point A BUT there is NO corresponding LOP anywhere around for point B. There IS in fact a corresponding LOP for the LSP that was formed at point A EVEN ALTHOUGH THIS is NOT the last LSP!!!
If taking the rules as a purist, I would say that because there is no LOP at B, you would then use the LOP at A.
But I would like to take some distance to viewing at this.
Maybe this anomaly is a warning sign. Maybe we should stay out of a trade like this.
Maybe the chart is not well-formed for a proper SIS trade, and there are potential losses waiting ahead.
The chart in the example together with ASI do not show any proper trend, and therefore are maybe not ideal for SIS.
There could, of course, be a breakout waiting, but into which direction? Are we betting here too much?
Post #1057:
This concerns the making of a new ASI high before selecting a INDEX SAR LSP or HSP. Although this is detailed in the book it’s very obscure (to me anyway).
…
However: the ASI has not made a new high for the trade so the INDEX SAR remains at point A until a NEW ASI HIGH is made and only then does the previous LSP become the INDEX SAR!!! ???
On p. 97: "Once in the market, we use the previous swing point as the INDEX SAR."
I understand here that you entered after the candle that made the HSP between A and B.
So I would have placed the initial INDEX SAR at A as well.
But as the trade has now reversed, i would call the HSP of entry as a significant one. This would mean that B is the first LSP after a new significant HSP (which has formed just before the trade, which is undeniably a bit subtle here).
So I would have moved the INDEX SAR now to B.
But if you had entered this trade as an initial one, you would have waited until the significant HSP between A and B had been crossed.
This sounds another case with subtlety involved --> a possible warning to stay out?
I have now been staring at these SIS issues all evenings this week, doing various backtests and formalising the trade management rules for my program. I am becoming more and more convinced that SIS alone is not enough. I have seen days in the historical data where SIS has behaved very badly, and then days when it has been unbeatable. The first days of this week fell clearly in the latter category. What I am after is some filtering criteria that allows you to decide when to jump in and when to stay out.
Some ideas, which all need some refinement (throwing these here for free commenting before having better evidence about how these would work):
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It seems that losing trades come in streaks. So if you have one or two losing trades, jump out and enter only by the initial entry rule.
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SIS is at its best when using it in heavily trending market. So we need to find when the market is trending. The problem with the trend-showing indicators may be that they are lagging too much. It occurred to me that
we could look at these indicators (ADX/ADXR/VHF) at one timeframe below the one we are trading. If it starts showing ranging there but our timeframe is still trending, it might be a good time to jump out. The best pairs could be also selected by an ADX rank compiled from that lower timeframe. -
When in trend, counter-trend trades are usually not very profitable --> conclusion: don’t enter counter-trend trades. You might consider entering every trend-following trade as an initial one. To define the direction of the prevailing trend, I’m thinking at looking at the timeframe above us.
If there is no proper trend there, stay out. -
If there is a huge candle, especially in the opposite direction of the trend, the market is probably reacting to something. Stay out. (There should be a good definition for what is a “huge candle”.)
Dale had also some ideas about defining the ideal ATR factor for calculating L. While I see some merit in doing it in that way, I have not had time to study that further myself. The above pondering has also made me to think that if you have been able to select the time of trading correctly, the value of the factor is not that critical. It might save something in the losing trades, but you will save much more if you are able to stay out from those trades altogether.
J.