Treasury playbook for monitoring stablecoin pegs

The guidance issued for institutional treasuries in 2026 recommends monitoring stablecoin pegs across at least two USD‑quoted venues, tracking the cross‑venue gap and confirming issuer redemption status before declaring an incident. It prescribes fixed bands: under 25 basis points is normal noise; 25–50 bps is a watch; 50–100 bps is a warning; sustained moves above 100 bps are treated as a depeg.

A basis point equals 0.01 percent. A quote at $0.9950 is 50 bps below a $1.00 peg; $1.0100 is 100 bps above. The guidance advises logging mid or last prices, the venue, time and deviation in basis points for each material stablecoin balance.

Operators are asked to rely on a three‑signal stack before escalating: quotes from at least two USD venues that are relevant to the treasury, the cross‑venue gap between those venues, and the issuer’s redemption and attestation status for the treasury’s account type. The document notes that USDT‑anchored pairs embed USDT’s own deviation and should not be the primary check when a direct USD quote is available.

A routine daily check is described for calm markets: open two USD‑quoted venues for each material token, record mid prices and deviations in bps, note the cross‑venue gap and confirm the issuer’s redemption console shows no pause for the account type, then log the worst deviation. If any venue reaches the Watch band, the stress checklist adds a third venue or relevant on‑chain pool quote, measures how long the worst venue stays outside 25 bps, inspects circulating supply trends and reviews the issuer’s latest reserve notes and any bank or counterparty headlines.

The guidance emphasizes duration over depth. A two‑minute dip to $0.99 with open redemption is classified as noise, while a $0.997 print that persists for an hour with redemption paused is treated as a material alert. One polling method referenced treats time outside roughly $0.97–$1.03 for five minutes or more as stress and raises a depeg flag.

The incident playbook directs teams to freeze non‑critical outflows when quotes disagree and redemptions are paused or delayed, dual‑control large conversions, and map exposure by issuer, chain and custody. Escalation criteria include deviation remaining above 100 bps past the written duration rule, paused redemptions, or reserve disclosures showing a material inaccessible counterparty.

The document cites the March 2023 weekend when an issuer disclosed $3.3 billion held at a bank that could not clear redemptions over the weekend; the token traded as low as $0.8789 before recovering once deposits were guaranteed and redemption resumed. A separate count through mid‑2023 catalogued 1,914 depeg events, most of them small and short in duration.

Public peg dashboards, exchange tickers and aggregator feeds are described as useful for alerts but not substitutes for settlement venue checks and a redemption confirmation. The guidance advises setting alert thresholds to the policy bands rather than to zero and warns that a single aggregated price does not prove tradable par.

The document recommends formalizing bands, chosen venues and duration rules into written policy and practicing the stress checklist while markets are calm to ensure operational readiness.