The September Standing

Across the 22 venues AfriFlux tracks, the September book reached $1.00 billion, up 6.5% from August. It was the fourth consecutive month in which monthly growth slowed — but 10 venues still improved their Index score. That sounds contradictory until you understand what the Index measures.

The measured book crossed $1bn while growing more slowly than at any point in the window. Both things are true, and the Index is built to tell them apart.

The September Standing

Grades describe a venue’s position on two measured dimensions — how its growth compares with the field (Momentum, 60%) and how steady that growth has been (Consistency, 40%) — across a trailing twelve complete months. Spenda is the only venue in the A band. Ten venues improved their score against August; eight fell, three were unchanged, and one was frozen.

❄ Accrue is frozen for an infrastructure migration — it carries no grade change until the new rail is measured. Coverage describes data availability and does not directly move a grade. Six venues are on Partial coverage. Flutterwave is graded on its business book (business-payments only).

What the Index actually measures

The Index deliberately does not rank venues by size. A venue’s book is converted to month-over-month growth rates over the trailing twelve complete months, so size is no longer a direct input to the score — a small venue and a large one can be measured on the same growth scale.

Two venues can sit in neighbouring grades from opposite directions. Bayse grows fast and erratically (Momentum 86, Consistency 4.5). Roqqu grows slowly and almost perfectly steadily (Momentum 41, Consistency 100).

Keeping those two characteristics separate is the point of the Index. One number would have averaged them away and called both venues ordinary.

What actual acceleration looks like

Ten venues improved their score in September. Only three raised their own growth rate. The rest improved because the field slowed around them — the Index is peer-ranked, so slowing less than everyone else registers as a gain. That distinction matters, and Roqqu is the clearest example.

Roqqu’s rise was not a consequence of other venues slowing. Its own median growth rate increased, from +4.5% to +7.1%, while its month-to-month variation stayed the lowest of any venue we rate. It is the only venue in September that improved on both counts at once.

It is also not the fastest-growing venue in the Index — Momentum 41 places it in the bottom half of the field on growth. What lifts it is that the growth it does have arrives with unusually little variation from month to month.

Relative improvement is not acceleration. Most of September’s risers did not get faster; the field got slower. Roqqu got faster.

Why Quidax fell

Quidax moved from BBB to BB, a score change of −5.4. Its September book was $82.5M against $94.3M in August — a decline of 12.6%. The two numbers are not proportional, and the reason is worth following, because it is how the Index behaves for every venue.

September came in below its own median — which moved the median down by roughly 8.1 points. A +63.8% month left the window — worth a further 2.4. Quidax lost its strongest growth month from the lookback at the same time as posting a soft one.

The size of September’s decline is not what moved the grade. A flat September — zero growth instead of −12.6% — produces the identical median of +10.92%. A median registers position, not magnitude.

That is a deliberate property. Momentum uses a median precisely so that one extreme month cannot dominate a grade in either direction. The cost is that a venue can be marked down by an ordinary month, and that an exceptional month ageing out of the window can look like a decline. September is the first standing in which that is visible.

The Index is not a size ranking. A larger book does not receive a higher score simply for being larger; the score is driven by growth and its steadiness.

When the numbers look wrong

Two venues in the September standing move in a direction their own figures seem to contradict. Both are the Index working as designed, and both are worth reading before taking any single score at face value.

Flutterwave — decelerated significantly, scored higher

Flutterwave posted the largest genuine deceleration on the board: its median growth fell by nearly twenty points. Its Index score rose +5.0. At Momentum 91.7 — the highest of any venue we rate — it was still growing faster than almost the entire field even after slowing. A relative measure can therefore register a higher standing even when the venue’s own growth rate has slowed.

Flutterwave is a business-payments rail and is graded on its business book. Its coverage is Partial.

Grey Finance — the largest decline

Grey Finance fell −10.0 points, from B to CCC — the largest move in either direction this month. Unlike Quidax, the trailing window explains little of it: September itself accounts for the greater part of the change, with the window roll-off contributing less than a third.

A score is not a verdict on a month. It is a position in a distribution, over a window, against a field. Read the mechanics before reading the rank.

How the field is distributed

Offramps have a median score of 62.2 across six venues and the widest range of any multi-venue category, from 28.2 to 79.1. Neobanks are the largest cohort, with nine venues, and have the lowest median score at 37.3.

Method

The grade of record is Momentum (60%) + Consistency (40%), scored 0–100 and mapped to bands from AAA to D. Both pillars read the trailing twelve complete months of month-over-month growth in a venue’s measured stablecoin book.

Momentum is the median of those growth rates — never the mean, so one spike cannot fake growth — and that median is then peer-ranked across the field, so a good month in a market-wide boom is not over-rewarded. Consistency is the median absolute deviation of the same series, measured around the venue’s own median growth.

Each pillar is shrunk toward neutral by how much of its own twelve-month window a venue can fill. Coverage is a transparency label and does not directly move a grade. The standing is always the last complete month, published on the first of the following month. A published standing is frozen: a venue mapped after a month closed joins from the next cycle rather than being added retrospectively.