| 7D | -1.5% |
| 1M | +6.9% |
| 3M | +23.6% |
| 6M | +30.0% |
| YTD | +26.6% |
| 1Y | +34.7% |
The Hanover Insurance Group, Inc. is an insurance company based in Worcester, Massachusetts. It was the original name of a property-liability insurance firm established in 1852, and it remained a publicly traded company under that name until the early 1990s, when it changed its name to Allmerica Property & Casualty Companies.