Quote Reason Codes

The following is a list of all quote reason codes used by Cboe. All reasons are not valid in all contexts. The reason code will be followed by free form text. The specific text the system delivers may vary from the text listed below, to provide clarification of the reject reason. Cboe may add additional reason codes without notice. Members must gracefully ignore unknown values.

Table 1. Quote Reason Codes
CodeDescription
CInvalid EFID (ClearingFirm)
DInvalid WashId
EInvalid SessionEligibility
FNot enabled for quotes
IIncorrect data center
LInvalid QuoteCnt
MSymbols not on same matching engine
PInvalid PostingInstruction
QInvalid QuoteUpdateID
RRisk root does not match across quotes
SSymbol not found
UMessage unable to be sent to Matching Engine
WInvalid WashPreventType
aAdmin
cInvalid Capacity
dClose only
fRisk management EFID or Custom Group ID level
mInvalid WashMethod
nExceedes max notional value per order
oInvalid Open/Close
pRisk management risk root level
rInvalid Remove
sInvalid Side
tInvalid SendTime
uSymbol range unreachable
xExceeds max size per order
yQuote received by Cboe during replay
zInvalid reduce size restriction
Cboe Titanium U.S. Options BOEv3 Specification - Quote Reason Codes | Cboe