Futures Contract Symbol Regex for Python
/^[A-Z0-9]{1,2}[FGHJKMNQUVXZ][0-9]{2}$/What this pattern does
This page provides a well-structured, multi-part regular expression for matching futures contract symbol, ported and verified for Python. Financial data validation has zero tolerance for false negatives — a missed invalid entry can corrupt downstream calculations. The snippet below is ready to drop into your Python project — whether you're validating in a Django view, a FastAPI endpoint, or a standalone data processing script.
Python Implementation
# Futures Contract Symbol
# ReDoS-safe | RegexVault — Finance > Securities & Trading
import re
futures_contract_symbol_pattern = re.compile(r'^[A-Z0-9]{1,2}[FGHJKMNQUVXZ][0-9]{2}$')
def validate_futures_contract_symbol(value: str) -> bool:
return bool(futures_contract_symbol_pattern.fullmatch(value))
# Example
print(validate_futures_contract_symbol("ESZ24")) # TrueTest Cases
Matches (Valid) | Rejects (Invalid) |
|---|---|
ESZ24 | ESA24 |
CLH25 | ESZ2024 |
GCM25 | ESZ4 |
NQU24 | esz24 |
ZBZ24 | ES-Z-24 |
6EH25 | — |
When to use this pattern
This pattern is drawn from the Finance > Securities & Trading category and carries a ReDoS-safe certification. That matters for Python developers because particularly important in Python web servers where CPU-bound regex operations can stall concurrent request handling. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.
Common Pitfalls
Month codes are a historical convention, not alphabetical. 'I', 'L', 'O', 'P', 'R', 'S', 'T', 'W', 'Y' are not used as month codes. The year rolls over — Z24 is December 2024.
Technical Notes
Month codes: F=Jan, G=Feb, H=Mar, J=Apr, K=May, M=Jun, N=Jul, Q=Aug, U=Sep, V=Oct, X=Nov, Z=Dec. Common roots: ES=S&P 500, CL=Crude Oil, GC=Gold, NQ=Nasdaq 100.
Have a pattern that belongs in the vault?
Submit it for review — community-verified patterns get credited to your GitHub handle. Free submissions join the queue. Priority review available for $15.
Submit a Pattern