| XIV | | NGPL TXOK Physical Gas Daily Spot | Natural Gas | IEPA | |
| XIY | | NGPL TXOK Physical Inside FERC | Natural Gas | IEPA | |
| NTS | | NGPL TXOK Swing Future | Natural Gas | IFED | |
| YHU | | NGPL-Nipsco Physical Basis LD1 | Natural Gas | IEPA | |
| YHQ | | NGPL-Nipsco Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YHP | | NGPL-Nipsco Physical Fixed Price Spot | Natural Gas | IEPA | |
| YHS | | NGPL-Nipsco Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YHR | | NGPL-Nipsco Physical Gas Daily Spot | Natural Gas | IEPA | |
| YHT | | NGPL-Nipsco Physical Natural Gas Intelligence | Natural Gas | IEPA | |
| NIN | | Ninety One Plc - STND OPT | Single Stock Options | IFLO | |
| DEM | | NNG Demarc Basis Future | Natural Gas | IFED | |
| DEI | | NNG Demarc Index Future | Natural Gas | IFED | |
| XIR | | NNG Demarc Physical Basis LD1 | Natural Gas | IEPA | |
| XIO | | NNG Demarc Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XIN | | NNG Demarc Physical Fixed Price Spot | Natural Gas | IEPA | |
| XIQ | | NNG Demarc Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XIP | | NNG Demarc Physical Gas Daily Spot | Natural Gas | IEPA | |
| XIS | | NNG Demarc Physical Inside FERC | Natural Gas | IEPA | |
| DES | | NNG Demarc Swing Future | Natural Gas | IFED | |
| NVE | | NNG Ventura Basis Future | Natural Gas | IFED | |
| NNH | | NNG Ventura Fixed Price Future | Natural Gas | IFED | |
| NNI | | NNG Ventura Index Future | Natural Gas | IFED | |
| XTK | | NNG Ventura Physical Basis LD1 | Natural Gas | IEPA | |
| XTH | | NNG Ventura Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XTG | | NNG Ventura Physical Fixed Price Spot | Natural Gas | IEPA | |
| XTJ | | NNG Ventura Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XTI | | NNG Ventura Physical Gas Daily Spot | Natural Gas | IEPA | |
| XTL | | NNG Ventura Physical Inside FERC | Natural Gas | IEPA | |
| NNS | | NNG Ventura Swing Future | Natural Gas | IFED | |
| | NOB N-S Physical Off-Peak (bilateral) | Electricity | IEPA | |
| | NOB N-S Physical Peak (bilateral) | Electricity | IEPA | |
| | NOB S-N Physical Off-Peak (bilateral) | Electricity | IEPA | |
| | NOB S-N Physical Peak (bilateral) | Electricity | IEPA | |
| NOR | | Norges Bank Dated NOWA Futures | Short Term Interest Rates | IFLL | |
| NBE | | Normal Butane OPIS Mt. Belvieu Other Non-TET Future | Natural Gas Liquids | IFED | |
| IBC | | Normal Butane, OPIS Conway In-Well Future | Natural Gas Liquids | IFED | |
| IBD | | Normal Butane, OPIS Conway In-Well, Fixed Price Balmo Future | Natural Gas Liquids | IFED | |
| NBO | | Normal Butane, OPIS ETR ISOM Grade, Fixed Price Balmo Future | Natural Gas Liquids | IFED | |
| BUE | | Normal Butane, OPIS LST ISOM Grade Future | Natural Gas Liquids | IFED | |
| NBI | | Normal Butane, OPIS Mt. Belvieu Non-TET Average Price Options | Natural Gas Liquids | IFED | |
| NBN | | Normal Butane, OPIS Mt. Belvieu Non-TET vs RBOB Gasoline 1st Line Future | Natural Gas Liquids | IFED | |
| NBW | | Normal Butane, OPIS Mt. Belvieu Non-TET vs WTI 1st Line | Natural Gas Liquids | IFED | |
| NBJ | | Normal Butane, OPIS Mt. Belvieu Non-TET, Fixed Price Balmo Future | Natural Gas Liquids | IFED | |
| NBR | | Normal Butane, OPIS Mt. Belvieu TET Future | Natural Gas Liquids | IFED | |
| NBS | | Normal Butane, OPIS Mt. Belvieu TET, Fixed Price Balmo Future | Natural Gas Liquids | IFED | |
| | NP-15 Physical Off-Peak (bilateral) | Electricity | IEPA | |
| | NP-15 Physical Peak (bilateral) | Electricity | IEPA | |
| 8V9 | | NVIDIA Corporation - STND Future | Mini Stock Futures | IFLO | |
| NWL | | NWE LNG (Spark) Futures | Liquified Natural Gas | IFEU | |
| NWR | | NWP Rockies Basis Future | Natural Gas | IFED | |