| Abbreviation | Definition |
|---|---|
| IPT | Impact Minerals Ltd |
| IRC | Intermin Resources Ltd |
| IRCO | Intermin Resources Limited |
| IRD | Iron Road, LTD. |
| IRE | IRESS Market Technology Ltd |
| IRI | Integrated Research Ltd |
| IRL | India Resources Ltd |
| IRM | Iron Mountain Mining, LTD. |
| IRMO | Iron Mountain Mining Ltd |
| IRN | Indophil Resources NL |
| IRU | iShares Russell 2000 Exchange Traded Fund |
| ISG | iShares MSCI Singapore |
| ISH | Ishine International Resources Limited |
| ISK | Island Sky Australia Ltd |
| ISL | ISL |
| ISN | Isonea Limited |
| ISNOA | Isonea Limited |
| ISNOB | Isonea Limited |
| ISNR | Isonea Limited |
| ISO | Ishares S&p/asx Small Ordinaries |