Blended P/E vs Normal P/E
A price/earnings ratio only means something in context. Comparing a stock's current blended P/E with the P/E it has normally commanded over its history is one of the clearest ways to see whether it's expensive or cheap today.
Blended P/E
The blended P/E mixes recent trailing earnings with forward estimates, giving a more current read than trailing-twelve-month P/E alone. It answers: what are you paying, right now, per dollar of the company's earnings power?
Normal P/E
The historical normal P/E is the multiple the market has typically assigned the stock over a long window. A high-quality business with steady growth tends to trade in a fairly stable P/E band; the normal P/E captures the middle of that band.
Reading the gap
When the blended P/E sits well above the normal P/E, the stock is trading richer than its own history — the market is either pricing in acceleration or getting ahead of itself. When it sits below, the stock may be out of favour relative to how it's usually valued. tickerseer expresses this as an overvaluation percentage: how far the current multiple is above (or below) the normal one.