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Banking, Payments & Capital Markets · Systems talking · Hours back · sample run · 62 ms

FIX Protocol Decoder

Decoded 40 messages (FIX 4.4): 7 orders and 18 execution reports; 12 exceptions (4 integrity, 4 rejects, 3 fill accounting, 1 orphan). Median ack latency 7.0 ms.

Evidence · FIX log line 13
2026-09-18 13:30:03.004 IN 8=FIX.4.4|9=232|35=8|49=SUMMITEXEC|56=HVCAPITAL|34=9|52=20260918-13:30:03.004|37=SX-50003|11=HV-1003|103=3|58=Order exceeds single-o
Working

The ExecutionReport for HV-1003 carries ExecType 8 (Rejected) and OrdStatus 8 (Rejected): the NVDA Buy 25,000 order on line 13 was refused with OrdRejReason (103) 3 = Order exceeds limit.

Method

1Delimiters: SOH (0x01), '|' or a literal '^A' are read as the field separator; text before 8=FIX on a line is kept as the log prefix.

2BodyLength (9) is recomputed as the byte count from the character after the delimiter ending field 9 up to and including the delimiter before 10=; CheckSum (10) as the sum of all bytes before 10= modulo 256, written as three digits. Both assume a one-byte SOH, as sent on the wire.

12
Exceptions · 4 rejects, 3 accounting
RuleLineSeq
Order reject149
Cancel reject1912
CumQty mismatch2315
1 to 3 of 12
Reads

FIX message log

Produces

Decoded order and execution JSON with latency stats (Decoded orders and executions (JSON), Decoded messages, every tag (JSON), Exceptions (CSV))

Price

$3,500 / month, 30% to the referring partner

Your files

Read in memory for the session, never stored, never used to train a model.

Not financial, investment, banking or securities advice. Filings and screening results must be reviewed by a qualified compliance professional. Standard and product names belong to their owners. BaseLoom is not affiliated with or certified by them; validate converted files with your trading partner before production use.