The next time you decide to put all your spare change into the nearest Coinstar machine, take a moment to sift through it.

A coin can be worth a ton of money -- a pretty penny, one might say -- if it's rare and has enough historical significance.

The broad rally for the S&P 500 index has continued so far in 2025, with a 2% increase for the large-cap U.S. benchmark index through last week. This has some investors continuing to worry that ...