Reading Line Movement as a Language: What Is the Market Actually Telling You?

[FadeThePublic]

People say the line is a language and the movement is the market talking. Okay. Who's speaking? That's the part nobody wants to answer. (A sentence with no speaker isn't a message, it's weather.)
I had a reverse line movement spot a while back. RIP public money. Eighty percent of tickets on one side and the line moved the other way anyway. Textbook. It cashed. Then I went back and traced the whole move to one book cutting its limits. No sharp money. One trader changing a number for his own reasons, and I'd read a message into it.
There are at least four speakers: new information, sharp money, a book copying another book, and a book managing its own exposure. Two of those are about the game. Two are about the books. Most of the time I can't tell which one I'm hearing. Vegas knows, I just don't know what Vegas knows.

 

[patchworkfox]

People say the line is a language and the movement is the market talking. Okay. Who's speaking? That's the part nobody wants to answer. (A sentence with no speaker isn't a message, it's weather.)
I had a reverse line movement spot a while back. RIP public money. Eighty percent of tickets on one side and the line moved the other way anyway. Textbook. It cashed. Then I went back and traced the whole move to one book cutting its limits. No sharp money. One trader changing a number for his own reasons, and I'd read a message into it.
There are at least four speakers: new information, sharp money, a book copying another book, and a book managing its own exposure. Two of those are about the game. Two are about the books. Most of the time I can't tell which one I'm hearing. Vegas knows, I just don't know what Vegas knows.

Your story is exactly why the first question is who moved first and who followed.

- News: injury, lineup or weather news moves almost every book within minutes. Check the timing against the report.
- Sharp action: the move starts at the market-making books with high limits and the rest of the market follows quickly.
- One book's own position or limits: only that book moves and the others do not follow. That is the case you hit.
- Copying: smaller books moving to match others, which tells you nothing new.

Also, ticket counts on their own do not mean much. Books do not try to balance the number of bets; they care about money and about who is betting it, so 80% of tickets on one side and a line going the other way is common and is not proof of sharp money. Without knowing which book moved first, a line move is weather, as you put it. There is a write-up on what lopsided action really tells you if you want the longer version.

 

[oli_sussex]

Most movement is the last two speakers. Copies and exposure. They tell you about the book, not the match.

 

[SharpEddie47]

Let me be clear about the framework before the anecdotes arrive, because otherwise this thread will treat movement as one thing. A move has a sender, and the sender determines whether it contains any information about the game. Fade has listed four. I would rank them by informational value: new facts such as a lineup, an injury or weather, then informed money, then a copied price, then a trader balancing liability. Only the first two tell you something about the game.
A second point, about size. Not every half point is the same size. Roughly eight percent of NFL games land on exactly three and about six percent on seven. A half-point move across three is worth something like three to four percent of a stake. A half point between four and four and a half is worth about one. A move through a key number is a loud word. A move between them is a murmur.
How I use it: I never treat movement before my bet as an instruction. I record where the line closes relative to my number and judge the bet's quality afterward. That is closing line value. The market speaks fluently only in retrospect.
Trust the process, not your gut.

 

[ParlayPrincess_88]

Okay I have like three questions lol. What's RLM? What's steam? And is it normal that I bet the Chiefs and the number changed like a minute later?? I felt WATCHED

 

[FadeThePublic]

Reverse line movement: most of the bets are on Team A, and the line moves toward Team B anyway. Steam: a sudden move across lots of books at once, usually because someone sharp hit a number. (Usually. Ask Oli.)

 

[oli_sussex]

Not you, Princess. Your stake is not large enough to move a line. The timing is coincidence.

 

[TaffyTipster]

Reading the ladder's the only bit I've ever been proper good at.
On Betfair you can see it.
The money waiting.
The money matched.
A big back price sat there for an hour isn't a message mun.
It's a bloke being patient.
When it gets hit and the price steps and nobody's touched the team news, that's a message.
Same when the team gets named.
The XV lands.
The price on a named lock moves before the telly's finished saying his name.
I'm there before the pub.
That's my whole edge butt.

 

[CoachTony_Bets]

As a coach, the movement I understand is the one that follows the injury report, because I know the language the report is written in. Wednesday, a guy's listed limited. Market barely twitches. Correct, because Wednesday limited is usually a coach protecting a vet's legs. Friday, same guy doesn't practice at all, and the line moves a full point. That's the market reading the words "did not practice."
What the market can't read is the coach. "We'll see how he feels." "He's day to day." Coaches have a vocabulary for not telling you, and I speak it. A head coach who says "we expect him to play" is usually right. One who says "we'll see" is giving himself cover for a no.
I think there's a middle ground on the idea that markets know everything. They price the report fast. They don't always price the dialect it's spoken in. That's a thin edge, and it fades whenever somebody with a microphone starts translating.

 

[Klaus]

I tested whether movement carries information beyond my model.
Over three seasons I have 412 selections. The line moved towards my number on 233, or 56.5%, and away on 179. When it moved towards me the ROI was +7.1%. When it moved away, +1.4%.
My first reading was that adverse movement is a warning. My second was that I cannot know that. Adverse movement often reflects a copied price or a limit change, as Fade described. It is a warning only when the sender is informed money, and I cannot observe the sender.
I therefore do not change the stake. I hold my certainty more loosely on the cases that move against me, and I note that both groups remain profitable. A market that disagrees with a profitable model is not proof that the model is wrong.

 

[ThePuntingProf]

The market speaks at two registers in my own preferred market, and the distinction is the nearest thing to a grammar that I have found, one must consider that an Asian handicap can change its price while the handicap itself holds, or it can change the handicap, and these are different statements, when the price on one side drifts from one point nine five to one point eight five while the handicap stays at minus half a goal, the market is leaning, it is saying that more money would like to be there but it has not yet changed its mind, when the handicap itself steps from minus half to minus a quarter the market has decided, I treat the first as a murmur and the second as a sentence, and I confess that for many years I read both as the same thing, which is a way of reading with the volume turned up and the words turned off, I remember the price boards in the high street shops before any of this was on a screen, a man with a marker pen and a telephone, and it was then rather easier to believe the board was speaking to me, since it had been written by a person, I have since concluded that this is the whole of the error, a price is not addressed to anyone, it is the residue of a great many people who have never heard of me.

 

[DublinDegen]

lads the line is a person to me... i know its not... fade said it in the other thread the market doesnt know im there... i know that...
but when i bet and the number moves the very next minute i feel like someone saw me do it and answered... when it moves with me i feel chosen... like the market agrees... when it moves away i feel like it just told me im an eejit... i can feel the whole conversation and none of it is happening...
the movement is the only part of betting that reacts to me... the game doesnt... the number does... even though it doesnt...

 

[FadeThePublic]

Conor, same hallucination, different accent. I read an intention into a limit change. (And the only unambiguous sentence a book has ever said to me is a limit. Four books have told me, in the one language they've got, that they've read me and I should leave.)

 

[ParlayPrincess_88]

Wait so if a book limits you does that mean you're good?? Like is that a compliment lol

 

[SharpEddie47]

It means the book judges you unprofitable to it. That correlates with being good. It is not proof, and it is not a compliment.

 

[oli_sussex]

On an exchange a move is executed volume. At a book it is a trader's decision about risk. The first is closer to evidence of what people did. The second is closer to evidence of what the book fears.

 

[TaffyTipster]

Tony, rugby's the same.
Coach says he's "a bit stiff" and he's out.
Says "he'll be fine" and he's got one chance in three.
The coaches are the best liars in the game mun.

 

[CoachTony_Bets]

Rugby coaches are worse than ours. "Knock" can mean anything from a bruise to a season.

 

[Klaus]

Both of you describe a dialect the market reads slowly. It is slow only until someone translates it.

 

[ParlayPrincess_88]

Okay I'm going to write down the line when I bet AND again at kickoff and see if I can tell who's talking lol