Corporate action events

SUSP: Trading Status: Suspended

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

SUSP tells holders that trading in a security has been suspended. It is an informational, mandatory event: nothing moves, but trading, pricing and settlement plans are affected.

Code: SUSP
Usually announced as: MAND

What SUSP means

Exchanges suspend trading when, for example, price-sensitive news is pending, a company fails to publish accounts, or a merger or restructuring is under way. SUSP passes that status change down the custody chain with the date of suspension (:98a::TSDT).

The ECB SCoRE rulebook gives SUSP as MAND with no options and no movements. It often comes before another event: a resumption (ACTV), a delisting (DLST), or a reorganisation.

When you see it

In an MT564 with MAND and the trading suspended date; sometimes as part of the timetable of a merger or rights issue.
SUSP vs ACTV: ACTV announces that trading has started or resumed. SUSP vs DLST: a delisting removes the security from the exchange for good.

What to do next

Tell portfolio managers and traders; orders on the exchange cannot be executed.
Check pending settlements: trades done before the suspension usually still settle, but check with the counterparty and the account servicer.
Flag the price as stale in valuation and apply your fair value policy if the suspension lasts.

Where it appears in MT and ISO 20022

MT (ISO 15022)

MT564 sequence A (GENL), :22F::CAEV//SUSP with :22F::CAMV//MAND; sequence D, :98a::TSDT

MX (ISO 20022)

seev.031 CorpActnGnlInf/EvtTp/Cd = SUSP (checked in seev.031.001.15), with the flag in CorpActnGnlInf/MndtryVlntryEvtTp/Cd