American Trust & Savings Bank
Dubuque, IA — State Member Bank
Active
Net Interest Margin Over Time
| Net Interest Margin | American Trust & Savings Bank | All Insured Commercial Banks in Iowa |
| 12-31-2016 | 3.321 | 3.587 |
| 09-30-2016 | 3.342 | 3.602 |
| 06-30-2016 | 3.351 | 3.598 |
| 03-31-2016 | 3.359 | 3.601 |
| 12-31-2015 | 3.412 | 3.591 |
| 09-30-2015 | 3.438 | 3.588 |
| 06-30-2015 | 3.445 | 3.563 |
| 03-31-2015 | 3.353 | 3.541 |
| 12-31-2014 | 3.451 | 3.569 |
| 09-30-2014 | 3.441 | 3.552 |
| 06-30-2014 | 3.427 | 3.525 |
| 03-31-2014 | 3.402 | 3.52 |
| 12-31-2013 | 3.369 | 3.538 |
| 09-30-2013 | 3.423 | 3.526 |
| 06-30-2013 | 3.434 | 3.501 |
| 03-31-2013 | 3.465 | 3.488 |
| 12-31-2012 | 3.678 | 3.696 |
| 09-30-2012 | 3.783 | 3.722 |
| 06-30-2012 | 3.871 | 3.729 |
| 03-31-2012 | 3.936 | 3.767 |
| 12-31-2011 | 4.139 | 3.861 |
| 09-30-2011 | 4.198 | 3.865 |
| 06-30-2011 | 4.199 | 3.833 |
| 03-31-2011 | 4.236 | 3.808 |
| 12-31-2010 | 4.042 | 3.947 |
| 09-30-2010 | 3.981 | 3.957 |
| 06-30-2010 | 3.872 | 3.936 |
| 03-31-2010 | 3.649 | 3.922 |
| 12-31-2009 | 3.224 | 3.845 |
| 09-30-2009 | 3.21 | 3.829 |
| 06-30-2009 | 3.13 | 3.787 |
| 03-31-2009 | 3.075 | 3.796 |
| 12-31-2008 | 3.269 | 3.764 |
| 09-30-2008 | 3.289 | 3.732 |
| 06-30-2008 | 3.324 | 3.664 |
| 03-31-2008 | 3.546 | 3.658 |
| 12-31-2007 | 3.588 | 3.674 |
| 09-30-2007 | 3.599 | 3.667 |
| 06-30-2007 | 3.615 | 3.654 |
| 03-31-2007 | 3.567 | 3.624 |
| 12-31-2006 | 3.633 | 3.746 |
| 09-30-2006 | 3.671 | 3.762 |
| 06-30-2006 | 3.745 | 3.771 |
| 03-31-2006 | 3.681 | 3.763 |
| 12-31-2005 | 3.789 | 3.863 |
| 09-30-2005 | 3.764 | 3.877 |
| 06-30-2005 | 3.732 | 3.881 |
| 03-31-2005 | 3.744 | 3.865 |
| 12-31-2004 | 3.462 | 3.919 |
| 09-30-2004 | 3.384 | 3.912 |
| 06-30-2004 | 3.293 | 3.877 |
| 03-31-2004 | 3.231 | 3.885 |
| 12-31-2003 | 3.259 | 3.893 |
| 09-30-2003 | 3.362 | 3.9 |
| 06-30-2003 | 3.425 | 3.885 |
| 03-31-2003 | 3.484 | 3.897 |
| 12-31-2002 | 3.293 | 4.074 |