Drops and drifts
A drop (or shortening) is a price falling: the market thinks the outcome is more likely. A drift is the opposite. In a two-way market, a drop on one side usually means a drift on the other.
Why prices move
- Money. Large bets at the sharp bookmaker move the price; small ones barely do.
- News. Line-ups, injuries, suspensions, weather.
- Corrections. Opening prices are rough; the first hours fix the mistakes.
- Balancing. Soft bookmakers sometimes move to balance their own customers' bets.
Which moves carry information
- Moves at the sharp bookmaker matter more than moves at soft ones.
- Big moves (10% or more) matter more than small ones.
- Moves with high limits behind them matter more than moves in thin markets.
- Steam moves, when a price falls sharply and quickly across the market, are the strongest signal.
How to read a price chart
BetTheDrop shows a price movement chart for every line, built from the sharp market's prices. Look for:
- The opening level and how far the price has travelled since.
- Sudden steps (a steam move) versus slow drifts.
- Rebounds: a drop that partly reverses often means the market overreacted.
- The last hours before kick-off, when limits are highest and moves most reliable.
Timing: when moves happen
- Early: soft opening prices get corrected by early professional money.
- The day before and the morning of the match: news and travel.
- The last hour: confirmed line-ups (football) and the biggest limits of the day.
Using movement to find value
Movement is information, not a bet. The value is at bookmakers that haven't followed the move yet, and only while their price is above the new fair price. Chasing a price that has already moved is the most common way to lose with this information.
Rule of thumb: after a sharp drop, compare your bookmaker with the fair price after the drop. If yours is higher, it's a value bet. If not, let it go.
BetTheDrop alerts you within seconds of a sharp drop, with that fair price already calculated. See odds alerts on Telegram.
Worked example: reading a drop
- Opening: the home side opens at 2.30.
- Overnight: it falls to 2.05, an 11% drop. Early money disagreed with the opening price.
- One hour before kick-off: line-ups confirm a key absence for the away side and the price falls to 1.88, 18% below the opening. A strong move with the day's highest limits behind it.
- Close: 1.92, a small 2% rebound. The market overshot slightly.
Anyone who took 2.05 or more at a slow bookmaker beat the close comfortably. Anyone who chased 1.85 after the move did not.
Reverse line movement
Sometimes most of the public backs one side, yet the sharp price moves the other way. That's called reverse line movement: a sign that fewer but bigger, better-informed bets are on the other side. It's useful context, but the rule doesn't change: only bet when your price is above the fair one.
Moves in halves, sets and small markets
Period markets and small leagues move with less money behind them, so a 15% drop there means less than the same move on a main line. Check the market's maximum stake, shown on every BetTheDrop alert, before trusting a move.
Opening lines vs closing lines
Opening lines are a bookmaker's first guess, often with low limits, and the first hours correct them. Closing lines are the market's final verdict, with the most information and the highest limits. Value bettors aim to take prices early that the closing line later confirms. That's what closing line value measures.
A checklist when a price moves
- Did it move at the sharp bookmaker, or only at a soft one?
- How big was the move, and how much money does the market accept?
- Is there news (line-ups, injuries, weather) that explains it?
- What is the fair price now, with the margin removed?
- Is my bookmaker still above that fair price for exactly the same line?