- Symbology

Futures  "contract months" are represented by the standard exchange symbols:

Months
F = January G = February H = March	J = April K = May M = June	N = July Q = August U = September	V = October X = November Z = December Y = Cash

Futures  "symbols" are represented by:
"Commodity_code + yyyy + Monthcode" = SYMBOL
Example: Live Cattle + 1993 + October = "LC1993V"

NOTE: The "year" for CASH markets is represented by"----". The Total Volume and Total Open Interest figures for each market are stored in a special "xxNFVOI" record which represents the Nearest Futures contract.

OPTIONS STRIKES:

Short Name: DataCenter .AS4 file

The Options Strike Price "symbols" are represented by:
"CommodityCode + Strike+ MonthCode_Put/Call + yy" = SYMBOL
Example: Live Cattle + 74 + December Call + 08 = "LC74L08"

The Options Strike Price "contract months" WITH put/call identification are represented by the following letter codes:

Months - Calls
A = January B = February C = March	D = April E = May F = June	G = July H = August I = September	J = October K = November L = December
Months - Puts
M = January N = February O = March	P = April Q = May R = June	S = July T = August U = September	V = October W = November X = December

NOTE: The Options Strike Price "year" is represented by a 2-digit year, i.e., 93, EXCEPT when a 4-digit strike is used in the "Symbol." Then, due to the DOS filename limitation, only a single digit year is used. Example: SP450X93 or ED9255C4

Long Name: Converted from .AS4 file using PowerDist

The Options Strike Price "symbols" are represented by:
"CommodityCode + Year + MonthCode + Strike + Put/Call" = SYMBOL
Example: Live Cattle + 2008 + December + 7400 + Call = "LC2008Z7400C"