Direct answer: A contract roll is the switch from quoting one futures month to the next as the nearby contract approaches expiry. Each contract month has its own price, so when the quoted month changes, the price can jump even though neither contract moved that day. The fix is simple: read the month on the line first, and compare the new month against its own previous settle.
Why there is more than one price
A futures market is not one price. It is a strip of contracts, each for delivery in a different month.
ICE canola trades January, March, May, July and November contracts, quoted in Canadian dollars per tonne. ICE adds a September month starting with the September 2027 expiry.
CBOT corn trades March, May, July, September and December.
CBOT soybeans include a November contract for the new U.S. crop, followed by January, March and later months.
Those months trade at different prices because they price grain at different times. The gap between two months is called a spread.
Carry and inverses
When a later month trades above the nearby, the market is in a carry. The extra covers some of the cost of storing grain until then. A carry usually signals comfortable supplies: the market is paying you to wait.
When a later month trades below the nearby, the market is inverted. Buyers want grain now and will pay up for it. An inverse usually signals tight nearby supplies.
Either way, the size of the spread is the size of the jump you will see on roll day.
What happens on roll day
As a contract nears expiry, most trading volume moves to the next month. Exchanges and quote services shift the "front month" to follow the volume, and so does The Daily Board.
In late October, for example, The Board quoted January soybeans rather than the expiring November contract, because January had become the most actively traded month. If January was trading above November, the soybean line jumped higher on the day it switched, with no new buying behind it.
The same thing happens in reverse. Rolling from an old-crop month into a new-crop month that trades lower can make a price look like it collapsed overnight. That is a roll, not a rally or a crash.
How to read a roll on The Daily Board
Every line on The Board names its contract month, such as "Canola · Jan" or "Corn · Dec". On a roll day:
Check the month first. If it changed since the last edition, the price level is not comparable to yesterday's printed price.
Read the change, not the level. The Board's daily change is measured settle to settle within the same contract, so the move shown reflects what the new month actually did that session.
Mind your own pricing month. A cash bid or hedge is tied to a specific futures month. If your elevator is pricing off November canola and The Board has rolled to January, the spread between them is part of your bid.
Why rolls matter for Prairie growers
The spread between months is information. A wide canola carry says the market has enough near-term supply and is willing to pay for storage. A sharp inverse says buyers want your grain now. Watching how the spread behaves around a roll tells you more about the cash market than the headline price alone.
Frequently asked questions
What is a futures contract roll?
The switch from quoting one contract month to the next, usually as the nearby contract approaches expiry and trading volume moves to the following month. Traders holding positions also roll by closing the old month and opening the new one.
Why does the price jump on a roll?
Each contract month has its own price. The new month may trade above the old one (a carry) or below it (an inverse), so the quoted price changes even if neither contract moved that day.
How can I tell a roll from a real move?
Check the contract month on the line. If it changed since the last edition, compare the new month against its own prior settle, not against the old month's close. The Daily Board reports the change settle to settle within the same contract.
What contract months does ICE canola trade?
January, March, May, July and November, with September added starting with the September 2027 expiry. Trading ends on the trading day before the 15th calendar day of the delivery month.
