2015issue C0956
Screen futures contracts by liquidity and open interest
A 2015 futures listing first scales every market to an equal-dollar contract count, then forms relative contract liquidity from that count, total open interest, and a volume factor. Activity marks separate the easiest books to trade from thinly traded names.
- Equal-dollar contract count scales every listed future by contract value times the largest three-year price change so the counts share one dollar excursion.
- Relative contract liquidity multiplies that count by total open interest and a volume factor, usually between 1 and 4.
- Markets with the most activity marks are treated as easiest to buy and sell; names with one mark or none are treated as thinly traded.
- Each column is a proportional comparison and is meaningful only against other values in the same column.
Start with equal-dollar contract count
An equal-dollar column scales every listed future by contract value times the largest three-year price change so that those contract counts share the same dollar excursion. The contracts-to-trade figure is tick dollar value times the three-year maximum price excursion. It is the equal-dollar contract count: how many contracts of one market are needed to match another market’s three-year dollar price excursion, so listed counts share a common dollar scale.
Contracts needed for equal dollar profit, September 2015

The magazine defines the count as tick dollar value times the three-year maximum price excursion, so every row is scaled to the same dollar profit potential.
Form relative contract liquidity
A futures liquidity rank is formed by multiplying contract point value by a three-year maximum price move, then by open interest, then by a volume factor usually between 1 and 4. Relative contract liquidity equals the equal-dollar contract count times total open interest times that volume factor. The volume factor is the larger of 1 and e raised to (ln(volume) divided by ln(5000) minus 2). It lifts or floors activity in the liquidity rank.
Keep names the open-interest screen can carry
The ranking is ordered so that markets with the most activity marks are the easiest to buy and sell, while names with one mark or none are treated as thinly traded and less suitable for speculative execution. The open-interest screen uses outstanding contracts, together with volume, as a filter for whether a chosen futures size is likely to be executable.
Compare effective percent margin
Effective percent margin equals dollar margin divided by the contract’s three-year dollar price range, then multiplied by 100. It compares capital lock-up against historical range rather than against notional alone.
Read the 2015 listing within each column
In the 2015 listing, the E-mini S&P 500 used 2 contracts in the equal-dollar column and carried the longest activity mark, while 30-day fed funds used 273 contracts and carried no activity mark. Each column is a proportional comparison and is described as meaningful only against other values in that same column.
A share turnover proxy for stocks
For listed stocks, period volume as a percentage of shares outstanding is presented as a share turnover proxy for trading liquidity.
All readings on this track · 51 readings
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- 2010Ranking futures liquidity for executable contract choice
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- 2012Ranking futures liquidity before choosing a contract
- 2013Liquidity-first futures contract selection
- 2013Equal-dollar liquidity filter for futures contract choice
- 2013Futures liquidity filters for executable contract selection
- 2013Filter listed futures by liquidity and open interest first
- 2013Ranking listed futures by liquidity and equal-dollar size
- 2013A pre-trade liquidity filter for futures contract selection
- 2014Why commodity futures are trades, not long-horizon holdings
- 2014Rank futures liquidity before selecting the contract
- 2014Filter futures by equal-dollar liquidity and open interest
- 2015Filter futures contracts by liquidity and open interest
- 2015A two-stage liquidity filter for futures contract selection
- 2015Screen futures contracts by liquidity and open interest
- 2015Equal-dollar futures choice as a liquidity filter
- 2016Evaluate futures liquidity before contract selection
- 2016Ranking futures liquidity before you pick the contract
- 2016Filter listed futures by relative liquidity and open interest
- 2017Evaluating futures liquidity for executable contract selection
- 2017A relative liquidity rank for choosing an executable futures contract
- 2017Constructing a futures liquidity filter for contract selection
- 2017Filter futures by liquidity, open interest, and equal-dollar size
- 2017Rank futures liquidity before contract selection
- 2017Build a futures liquidity filter from open interest
- 2018Evaluating futures liquidity for executable contract choice
- 2018Volume-confirmed pivots versus unregulated spot exposure
- 2018Executable futures selection from a 2018 liquidity board
- 2018Evaluate futures liquidity before contract selection
- 2018Open-interest liquidity filter for futures contract selection
- 2018Construct a futures liquidity filter from open interest and range
- 2018Ranking futures by liquidity, open interest, and equal-dollar cost
- 2019Ranking futures liquidity before contract selection
- 2019Ranking futures liquidity before you pick a contract
- 2019Screening futures by equal-dollar liquidity
- 2020Building an equal-dollar futures liquidity screen
- 2020Use liquidity and open interest as a futures execution screen
- 2020Compact index futures as diversified contract selection
- 2020Filter futures by range-scaled liquidity and open interest