What is the long/short ratio and what does it show?

The long/short ratio compares the number of accounts in a futures market that profit if the price rises (longs) with the number that profit if it falls (shorts). A ratio above 1 means more accounts are on the long side; it does not mean there is more money on the long side.

That distinction is the key to reading the ratio correctly. Every futures contract has a buyer and a seller, so the total size of long positions always equals the total size of short positions. The long/short ratio therefore describes how accounts are split, not how positions are split.

How the ratio is calculated

The most common version is based on account counts. At a given moment, the exchange sorts the accounts holding open positions by their net direction:

• Long account share = number of net-long accounts ÷ total accounts with positions
• Short account share = number of net-short accounts ÷ total accounts with positions
• Long/short ratio = long account share ÷ short account share

For example, if 60% of accounts with positions are net long and 40% are net short, the ratio is 60 ÷ 40 = 1.5. To turn a ratio back into a percentage, use: long share = ratio ÷ (1 + ratio).

The table highlights an important point: when the ratio climbs from 2 to 3, the long share rises by only 8.3 percentage points. The ratio may look like it moved a lot while the crowd's actual split changed much less.

Why account counts and position size diverge

Imagine a hypothetical market. Of 1,000 accounts, 600 are long with an average position of $1,000. The other 400 are short with an average position of $1,500.

• Total long side: 600 × $1,000 = $600,000
• Total short side: 400 × $1,500 = $600,000

The account-based ratio is 1.5, so the crowd leans long. Yet both sides are exactly the same size. The difference comes from fewer but larger accounts sitting on the short side. In real markets, the other side of contracts is held not only by individual users but also by market makers and large institutions.

That is why some exchanges publish more than one ratio:

• All accounts: how many of all users with positions are long and how many are short.
• Top traders, by accounts: the same count, but only within the slice of users with the largest margin balances. Margin is the collateral deposited to keep a position open.
• Top traders, by positions: within the same slice, the long and short share measured by position size instead of the number of accounts.

The overall ratio and the top-trader ratio can point in different directions. For example, the overall ratio might be 2.0 while the top traders' position-based ratio is 0.9. That picture suggests most small accounts are long while the larger balances lean slightly short. Asking "which one is right?" is the wrong question; they measure different groups.

What the ratio tells you

The long/short ratio is a snapshot of how the crowd is positioned. Three ideas stand out when interpreting it:

1. If the crowd is piled on one side, that side is fragile. If most long accounts use leverage, a sharp drop can set off a chain of liquidations. A liquidation is the forced closing of a position whose collateral is no longer sufficient; forced closures of long positions hit the market as sell orders and can speed up the decline.
2. Change is more informative than level. In some markets the ratio can stay above 1 for long periods, for example if small accounts tend to choose the long side more often. So an unusual move compared with that asset's own history means more than any single fixed threshold.
3. It does not give direction on its own. A crowd that is long does not mean the price will fall; a rally can run for a long time with the crowd on board.

Reading it alongside other data

The ratio says more when it is placed next to other indicators:

• Open interest: the total size of contracts that have not yet been closed. If the ratio rises while open interest also rises, new long positions may be opening. If the ratio rises while open interest falls, the move may come from short positions being closed.
• Funding rate: the periodic payment exchanged between longs and shorts in perpetual contracts. Positive funding means longs pay shorts. If a high long/short ratio comes with clearly positive funding, long crowding shows up both in account counts and in pricing.
• Liquidation feed: a live record of positions being forcibly closed. It shows whether the crowded side is actually being liquidated.

In the Sezga terminal, funding rates and the liquidation feed can be followed alongside open interest and the long/short ratio. Reading the ratio together with this data gives a sounder result than reading it alone.

Its limits

• Each exchange counts only its own users; ratios for the same asset can differ from one exchange to another.
• The ratio is a snapshot calculated at intervals, such as every 5 minutes or every hour.
• An account-based ratio gives a $100 position the same weight as a $1 million position.
• A short position does not always mean a bearish view. Someone who holds the asset and opens a short on futures may simply be hedging their risk.

Key takeaways

• The long/short ratio usually compares the number of accounts on each side, not the size of positions.
• In a futures market, total long size always equals total short size.
• Long share = ratio ÷ (1 + ratio); a ratio of 2 means two thirds of accounts are long.
• The overall ratio and the top-trader ratios measure different groups and can diverge.
• The ratio is most meaningful when read with open interest, funding and liquidation data.