A futures liquidity board as a pre-trade execution filter

A board before the order

The archive facts describe a historical workflow for ranking listed futures by how readily a book can absorb trades. TradersWeek editorial reading treats that board as a classroom case: every contract idea is run through open interest, volume, and equal-dollar size checks before an order is chosen.

That screen is a liquidity filter. It keeps only markets whose ranking, open interest, and volume can support the intended order size, so the listing is selected for executability and implementation cost rather than for the headline market.

How the ranking is assembled

A futures liquidity ranking can be assembled by multiplying contract point value, a three-year maximum price move, open interest, and a volume adjustment that is usually between 1 and 4. The product is relative contract liquidity: a comparative ranking of how readily a listed futures book can absorb trades.

The same ranking can also be written as the equal-dollar contract count times total open interest times a volume factor. The volume factor is the greater of 1 or an exponential transform of volume against a 5,000-contract baseline. It typically stays between 1 and 4, so unusually thin or unusually heavy traded volume adjusts the rank.

The equal-dollar contract count is the contracts-to-trade figure. It is formed by multiplying contract value by the largest price change observed over three years, so each count sits on the same dollar scale and one listing can be compared with another.

Relative contract liquidity can be shown as a descending mark count. One mark or none indicates comparatively little activity versus the densest listings.

Margin is a separate column

Effective percent margin equals dollar margin divided by the three-year range of contract dollar value, then multiplied by one hundred. It is posted dollar margin expressed as a percentage of the contract’s three-year dollar price range. It is not a substitute for the liquidity ranking.

What the May 2020 listing showed

In the May 2020 listing, the June S&P 500 E-mini showed a 10.8 percent margin, a 28 effective percent margin, and an equal-dollar count of 2, and it occupied the top relative-liquidity rank.

In that same listing, posted percent margin ranged from 0.2 on short-rate futures to 35.1 on gasoline. Margin height did not order markets the same way the liquidity ranking did.

What the columns do not mix

For listed shares, period volume as a percentage of shares outstanding is presented as share turnover, a turnover-rate proxy for trading liquidity. That figure is separate from the futures ranking and is not used to order the futures board.

Three checks on an executable order

Editorial application of the board uses three checks together. Open interest is the stock of outstanding futures positions and serves as a capacity input when ranking how easily a book can be traded. The volume factor confirms whether traded volume is thin or heavy relative to the 5,000-contract baseline. Contracts to trade places intended size on the same three-year dollar-range scale as every other listing.

Together those inputs decide whether the book can support the order and what implementation cost that choice implies. They do not grade a headline market in isolation.