Orders / Pair 23 of 41
A date with something behind it, and a date without
Somebody gives you a date. Whether that date is worth anything depends on what sits behind it, and the two kinds of date look the same on the screen.
Both of them arrive as a date
A listing carries a span of days. A message repeats a rough span in slightly different words. Nothing on the screen marks one of them as a rule and the other as an opinion. Both are numbers, both reach you through the market, and both read like a commitment while you have them in front of you.
The difference is not in the wording and not in the tone. It sits entirely in whether anything is defined to happen on the far side of the date.
A boundary with a consequence
A window is a span of time with an edge, and something is set to occur once that edge passes. It may open an option, close one, or change what the market will consider. The date is fastened to a rule that exists whether anybody remembers it or not.
A guess with nothing fastened to it
An estimate is one person predicting how long something takes. Nothing is set to occur when it passes. The date is fastened to an opinion, and an opinion is allowed to be wrong at no cost to the person who held it.
What is actually behind the number
Windows tend to come from the market itself. The rules of the place attach dates to states, and those dates decide when a held balance can be argued over and when it stops being yours to argue about. Nobody has to agree to them for them to run.
Estimates tend to come from a person. They live in listing text and in replies, and they move when that person feels like moving them. A friendly correction to an estimate is not a broken promise, since no promise was made in the first place.
Reading the order rules once, calmly, before there is anything to argue about, is the cheapest hour you will ever spend. That is also where you find out whether the clock in an automatic timer runs before or after any window you have been quoted.
Three questions sort almost every date you will be shown, and none of them require you to ask anybody anything:
- Where did the date come from, the market or a person.
- Is it stated once for everybody, or only to you about this order.
- Can the person who gave it to you revise it without asking permission.
Any date that came from a person, applies to your order alone and can be revised at will is an estimate, whatever it is called. The three answers point the same way every time, and if they do not, you have misread one of them.
The day after
Ask what is defined to happen on the morning after the date passes. If you can name an outcome without guessing, you have a window. If the honest answer is that you would wait a while longer, you have an estimate.
- Note where you read the date. The listing, a reply, or the market's own order screen.
- Say plainly what changes the following morning.
- If the answer is that a control becomes available or a clock runs out, that is the rule talking.
- If the answer is that you would ask again, nobody has bound themselves to anything.
Getting it backwards in each direction
The two mistakes are not the same size, and it helps to know in advance which one you can afford.
- If you treat an estimate as a window
- You arrive expecting a decision and there is no rule for anyone to decide under. Arbitration has nothing to measure the complaint against. You have spent attention, patience and a certain amount of goodwill on a date that never bound anybody.
- If you treat a window as an estimate
- You let the edge go by. The edge was the part that gave you standing, and options that open at an edge can close again further along. This is the expensive direction, and it is expensive quietly, with no message to tell you it has happened.
What to do with the date you have
- If it is a window
- Write the edge date down along with what it triggers. Then check the market's own finalise clock against it, since a boundary that lands after the money has gone is not much of a boundary.
- If it is an estimate
- Take it as information and leave it there. Keep the balance in escrow, do not close an order on the strength of a prediction, and go on watching the dates that do have rules attached.
Neither answer requires you to be annoyed with anyone. A person who gives you a wide estimate and then beats it has done nothing wrong, and a person who quotes you a tight one has not thereby made it binding. The only dates that carry weight are the ones the market enforces on its own, and you can see the full set of those collected on the tests page.
Questions readers send about this pair
Is a delivery time in a listing a promise?
Not by itself. Listing text is written by the seller and can be changed by the seller. It becomes a promise only where the market attaches a rule to it, and that rule will be described in the market's own terms rather than in the listing.
What if the date passes and nothing at all happens?
Then it was an estimate, and you have learnt that at very little cost. Ask for a fresh view of where things stand and keep the balance held. An estimate that slips is normal. A window that slips is a different matter.
Should I open a dispute the moment a window closes?
Not automatically. Closing a window usually makes an option available rather than making it compulsory. Look at what the option is, what the market's clock is doing, and decide from there.