Is there any edge in earnings calls anymore?

Genuine question. Is there still any edge in listening to earnings calls?

I went through one recently and noticed the CEO kept repeating the same cost language and avoided giving clear guidance.

The stock sold off later, but the signal felt obvious in hindsight.

Problem is it’s buried in a long call and not easy to act on live.

Do people actually use this as part of their process or just rely on summaries and charts?