| ABS | absolute prepayment speed |
| AMT | amt |
| AUTOREIN | auto reinvestment at or better |
| BANKQUAL | bank qualified |
| BGNCON | bargain conditions |
| COUPON | coupon range |
| CPP | constant prepayment penalty |
| CPR | constant prepayment rate |
| CPY | constant prepayment yield |
| CURRENCY | iso currency code |
| CUSTOMDA | custom start end date |
| GEOG | geographics and percent range |
| HAIRCUT | valuation discount |
| HEP | final cpr of home equity prepayment curve |
| INSURED | insured |
| ISSUE | year or year month of issue |
| ISSUER | issuers ticker |
| ISSUESIZ | issue size range |
| LOOKBACK | lookback days |
| LOT | explicit lot identifier |
| LOTVAR | lot variance |
| MAT | maturity year and month |
| MATURITY | maturity range |
| MAXSUBS | maximum substitutions |
| MHP | percent of manufactured housing prepayment curve |
| MINDNOM | minimum denomination |
| MININCR | minimum increment |
| MINQTY | minimum quantity |
| MPR | monthly prepayment rate |
| PAYFREQ | payment frequency calendar |
| PIECES | number of pieces |
| PMAX | pools maximum |
| PPC | percent of prospectus prepayment curve |
| PPL | pools per lot |
| PPM | pools per million |
| PPT | pools per trade |
| PRICE | price range |
| PRICEFRE | pricing frequency |
| PROD | production year |
| PROTECT | call protection |
| PSA | percent of bma prepayment curve |
| PURPOSE | purpose |
| PXSOURCE | benchmark price source |
| RATING | rating source and range |
| RESTRICT | restricted |
| SECTOR | market sector |
| SECTYPE | securitytype included or excluded |
| SMM | single monthly mortality |
| STRUCT | structure |
| SUBSFREQ | substitutions frequency |
| SUBSLEFT | substitutions left |
| TEXT | freeform text |
| TRDVAR | trade variance |
| WAC | weighted average coupon |
| WAL | weighted average life coupon |
| WALA | weighted average loan age |
| WAM | weighted average maturity |
| WHOLE | whole pool |
| YIELD | yield range |