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.
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.
Method1Delimiters: 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.
| Rule | Line | Seq |
|---|---|---|
| Order reject | 14 | 9 |
| Cancel reject | 19 | 12 |
| CumQty mismatch | 23 | 15 |
FIX message log
Decoded order and execution JSON with latency stats (Decoded orders and executions (JSON), Decoded messages, every tag (JSON), Exceptions (CSV))
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Read in memory for the session, never stored, never used to train a model.
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