Trading guide · 15 · 3 minutes

How to read the IQ Liquidity Score

As of Oct 22, 2026, ETFIQ scored 181 ETFs. The median IQ Liquidity Score was 75, Liquid.

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The IQ Liquidity Score measures how easily an ETF trades, from 0 to 100. 100 is the easiest.

It uses fixed anchors, so a fund’s score does not move because other funds changed.

Beside it, the page prints the fund’s percentile in its category.

The tiers

Trades like a giant: 85 to 100. Liquid: 70 to 84. Liquid with care: 55 to 69.

Thin: 35 to 54. Hard to trade: 0 to 34.

122 ETFs scored Liquid or better on Oct 22, 2026.

The six components

Cost to trade: the fund’s 30-day median bid-ask spread, from its issuer.

Capacity: what the holdings could absorb in a day.

Price fidelity: how closely the closing price tracked net asset value (NAV).

Primary market: the active authorized participants (APs) named in Form N-CEN.

Bad-day behaviour: how the price held against NAV on the market’s hardest days.

Depth: how much is offered at the quote. It needs quote data ETFIQ does not hold yet.

Reading one fund

Each component prints with its raw figure, so you can see what drives the score.

The score describes trading in a fund, not whether to own it.

The low volume guide explains why a small fund can score high.

Questions people ask

How is ETF liquidity measured?

By what a trade costs, what the holdings can absorb, how closely the price tracks NAV and how many APs stand behind the fund.

How do I compare liquidity when selecting an ETF?

Compare spreads, capacity and active APs on each fund’s trading page. The score puts them on one 0 to 100 scale.

What is the bid-ask spread of an ETF?

The gap between the highest bid and the lowest ask. Each side pays about half of it, so a round trip pays it once.
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ETFIQ, How to read the IQ Liquidity Score, data as of Oct 22, 2026. https://etfiq.com/trading/reading-the-score/

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A guide to trading conditions, not advice. ETFIQ makes no recommendations.