Explaining liquidity scores to customers
On the methodology for the liquidity scores, you can find it below:
| Metric(s) | Description | Micro (<$10K) | Retail ($10K-$100K) | Institutional ($100K+) |
|---|---|---|---|---|
| Aggregate Liquidity Score | Proportion of the time there has been a bid and offer over the last 2 weeks, and the average top of book bid-offer spread fell between a certain interval at the corresponding size | 1 Star: <10% OR > 100 bps / 20 yield bps |
2 Stars: >10% AND ≤ 200 bps / 40 yield bps
3 Stars: >50% AND ≤ 150 bps / 30 yield bps
4 Stars: >75% AND ≤ 100 bps / 20 yield bps
5 Stars: >90% AND ≤ 50 bps / 10 yield bps | 1 Star: <10% OR > 100 bps / 20 yield bps
2 Stars: >10% AND ≤ 200 bps / 40 yield bps
3 Stars: >50% AND ≤ 150 bps / 30 yield bps
4 Stars: >75% AND ≤ 100 bps / 20 yield bps
5 Stars: >90% AND ≤ 50 bps / 10 yield bps | 1 Star: <10% OR > 100 bps / 20 yield bps
2 Stars: >10% AND ≤ 200 bps / 40 yield bps
3 Stars: >50% AND ≤ 150 bps / 30 yield bps
4 Stars: >75% AND ≤ 100 bps / 20 yield bps
5 Stars: >90% AND ≤ 50 bps / 10 yield bps |
Liquidity Scores are a derived pricing metric intended to provide users with an idea on the recent liquidity of a bond, allowing them to understand how easy it may be for them to enter or exit their positions today. See below on more information:
The more stars a security has, the more liquid it is considered to be, meaning it's easier to trade without large price concessions. For your customer, understanding these liquidity scores can help in assessing the risk and tradability of securities and also help you filter the bonds you'd like to offer to your end customers. Let me know if you have any follow-ups to these.

Definition:
The liquidity score is a proprietary analytic calculated by Moment that provides investors a sense of which bonds are liquid and highly tradable in both institutional volume and smaller retail sizes. The liquidity score is a star-based ranking system, provided out of 5 stars — 5 stars represents highest liquidity, while 1 star represents lowest liquidity. Inputs into the calculation for a bond’s liquidity score include various factors such as how many times it has been traded in small size, what percentage of quotes have a minimum size of 1, and others.
Context and why it is important:
Correspondents can use the liquidity scores of bonds to determine which bonds to include in their tradable universe for end users. End users can use the liquidity score to inform their decision-making as well. Understanding liquidity of bonds for retail investing is important because investors are likely to get better, more fair pricing, for bonds that have higher liquidity scores, as with more trading volume (more liquidity) prices shown are more likely to represent the true value of the bonds. When markets are illiquid, traders may find themselves stuck with bonds they can't sell (or can't sell without a significant price drop).
Liquidity Scores are a derived pricing metric intended to provide users with an idea on the recent liquidity of a bond, allowing them to understand how easy it may be for them to enter or exit their positions today. See below on more information:
Aggregate Liquidity Score.
This score is a composite measure that assesses the market liquidity of a security. It considers two factors: