Why liquidity and stability pull against each other

Ask someone what they want from money and the first two answers are usually 'I want it to hold its value' and 'I want to be able to get at it'. Those sound complementary. In the structure of an actual instrument they are frequently opposed.

The mechanism is redemption. An instrument that lets you exit same-day, at size, has to hold its backing in a form that can be turned around same-day. An instrument that accepts a longer redemption window can hold its backing in a form that does not have to be liquidated on demand — and that is precisely the form that tends to be steadier.

You can see the shape of it across CentDNA's illustrative catalogue. The instruments with the fastest redemption are clustered among the issuers built for settlement, and those same issuers carry the weakest stability characteristics. The instruments with the strongest stability characteristics carry the longest redemption windows. Nobody in the catalogue offers both, because the trade is not an oversight anybody has failed to fix.

CentDNA's scoring model handles this by refusing to collapse the two. Stability preference is 20% of the match and liquidity preference is 15%, and they are computed separately against separate demands. If your profile asks for both at full strength, the engine will not pretend to have found an instrument that delivers both — it will return the instruments that come closest on the balance your other answers imply, and the score will be lower than it would be for a profile that picked a side.

A lower score is the honest output there. The alternative is an engine that returns 97% for a request nothing in the world satisfies.