How much is a rune?

Could you please clarify for me the value of a rune? I've been hearing a lot about it recently in the context of cryptocurrencies and finance, but I'm still not entirely sure what its worth is. Could you give me an estimate, perhaps based on recent market trends or some other relevant factors? Is the price of a rune volatile, or does it tend to stay relatively stable? Also, how does the value of a rune compare to other cryptocurrencies or traditional forms of currency? Thank you for your help in answering these questions!