West Suburban Bank
Lombard, IL — Non-member Bank
Active
Net Interest Margin Over Time
| Net Interest Margin | West Suburban Bank | All Insured Commercial Banks in Illinois |
| 12-31-2016 | 2.909 | 3.499 |
| 09-30-2016 | 2.93 | 3.502 |
| 06-30-2016 | 2.935 | 3.495 |
| 03-31-2016 | 2.99 | 3.487 |
| 12-31-2015 | 3.059 | 3.487 |
| 09-30-2015 | 3.05 | 3.478 |
| 06-30-2015 | 3.027 | 3.453 |
| 03-31-2015 | 3.033 | 3.418 |
| 12-31-2014 | 3.105 | 3.485 |
| 09-30-2014 | 3.1 | 3.46 |
| 06-30-2014 | 3.086 | 3.443 |
| 03-31-2014 | 3.052 | 3.416 |
| 12-31-2013 | 2.955 | 3.428 |
| 09-30-2013 | 2.947 | 3.4 |
| 06-30-2013 | 2.909 | 3.374 |
| 03-31-2013 | 2.918 | 3.361 |
| 12-31-2012 | 3.211 | 3.573 |
| 09-30-2012 | 3.278 | 3.585 |
| 06-30-2012 | 3.314 | 3.59 |
| 03-31-2012 | 3.276 | 3.604 |
| 12-31-2011 | 3.527 | 3.692 |
| 09-30-2011 | 3.537 | 3.686 |
| 06-30-2011 | 3.56 | 3.652 |
| 03-31-2011 | 3.557 | 3.614 |
| 12-31-2010 | 3.379 | 3.707 |
| 09-30-2010 | 3.417 | 3.712 |
| 06-30-2010 | 3.343 | 3.694 |
| 03-31-2010 | 3.294 | 3.664 |
| 12-31-2009 | 3.298 | 3.579 |
| 09-30-2009 | 3.345 | 3.56 |
| 06-30-2009 | 3.435 | 3.538 |
| 03-31-2009 | 3.472 | 3.54 |
| 12-31-2008 | 3.546 | 3.56 |
| 09-30-2008 | 3.559 | 3.558 |
| 06-30-2008 | 3.504 | 3.533 |
| 03-31-2008 | 3.454 | 3.519 |
| 12-31-2007 | 3.477 | 3.667 |
| 09-30-2007 | 3.512 | 3.677 |
| 06-30-2007 | 3.495 | 3.662 |
| 03-31-2007 | 3.464 | 3.626 |
| 12-31-2006 | 3.503 | 3.765 |
| 09-30-2006 | 3.537 | 3.793 |
| 06-30-2006 | 3.544 | 3.805 |
| 03-31-2006 | 3.536 | 3.781 |
| 12-31-2005 | 3.58 | 3.876 |
| 09-30-2005 | 3.563 | 3.884 |
| 06-30-2005 | 3.511 | 3.873 |
| 03-31-2005 | 3.452 | 3.831 |
| 12-31-2004 | 3.644 | 3.852 |
| 09-30-2004 | 3.675 | 3.831 |
| 06-30-2004 | 3.693 | 3.815 |
| 03-31-2004 | 3.718 | 3.814 |
| 12-31-2003 | 3.803 | 3.819 |
| 09-30-2003 | 3.814 | 3.828 |
| 06-30-2003 | 3.833 | 3.842 |
| 03-31-2003 | 3.929 | 3.863 |
| 12-31-2002 | 4.068 | 3.995 |