Post mortem for 3/28/06:
I believe I traded the rules of my plan correctly given the rules in effect and my interpretation of price action at the time. However, there were a couple of issues that I did not take into account.
First, just a technical note: trade 2 would never have been entered, because all 3 contracts were still running on trade 1. (I need to be more careful in applying this strategy in backtesting or the results will be wrong.)
Second, the price history I was using to backtest this day was incomplete. The price data jumps from Friday at 5:00 p.m. to Monday at 12:01 a.m. However, the Globex futures market opens on Sunday at 6:00 p.m. (EST). That means there was six hours of price data that I did not take into consideration and, more importantly, I didn't even take the data gap into consideration. My experience is that the price action on Sunday evening can be significant, so the lack of data is a serious disadvantage in interpreting price action early Monday morning. It just so happens that this day opened within one pip of the closing price on the previous Friday. But what happened just prior to the open? Was price descending from a point 30 pips higher? Was this the end of a buying climax? I just don't know. The point is, rather than making assumptions and applying rules to levels from the previous Friday, it would have been more prudent to watch and wait for price patterns and S/R levels to be established. That might have kept me out of trading until late Monday morning, or maybe the entire day. Which is fine.
However, to leave it like that would really be skirting an issue that does come up fairly often. Let me play devil's advocate and ask myself how I want my plan to handle situations where, seemingly out of nowhere, the S/R levels shift. So, the assumption is that this was not a weekend, and that the price action shown in the chart was continuous.
In this scenario (starting from the black bozo extending down from the top S/R level drawn, which marks the first bar of the day), price has risen as high as the PDH, and made scant progress beyond it. In terms of more recent price action, this last SH is a HH that follows a HL. Following that bar, we have a slightly HL, but then a LH and a LL that extends down below previous (strong) support. Then price rises above the old S/R level, but forms another LH. That is the price swing that preceded my first long entry.
What we have here is a series of two LSH's and LSL's as soon as the SH that preceded my entry is formed (which, in fact, as I keep track of things, is the second bar preceding my entry). If this were all taking place above previous S, I could justify this as price action within the preceding range. But that is not the case. The previous S level has been compromised AND price has formed a SH below the level of a previous HL (S->R). All of this (which, by the way took place over the course of about six hours) might have tipped me off that change was in the wind.
Let's look at what's there in terms of entry possibilities. A short entry might be justified on the basis of the LSH's and LSL's. Looking at the five-minute chart, this seems like a reasonable option. One problem is that the entry point is above the previous S level. What if that last LL was just a test? And exactly where must the LSH occur in order to signal entry? Here's my answer: it is the price movement from the PDH back to S, and from there to the double top (that V) that defines the operative range. The low of the V is the price below which a SH must occur in order to signal a true reversal. The LSH occurs ABOVE the S line, so no short entry is justified at this time.
What about a long entry? At the points where I've marked entries 1 and 2 in the original chart, price is still below the supply line descending from the double top, there has been a LH after the double top, and a downtrend may be developing. Combined, these constitute ample justification NOT to go long.
I do see one entry in this range. Once the supply line has been broken, and the range has become established, I think a short entry from the top of the range would be justified. The only time when that entry is signalled is marked on the chart ("Short entry here").