1Yr·

The P/E ratio - A key figure and nothing more.


"The share has a P/E ratio of 10, it is really cheap".

Let's be honest, how often have we heard or read this sentence.


Here is a small calculation examplewhy the P/E ratio is not necessarily the best indicator.


Initial situation:

  • Share price old: 100€
  • Profit old: 10€
  • P/E ratio old: 10


Now the company presents new figures and the share falls by 20%, as the profit has plummeted by 50%.


New situation:

  • Share price new: 80€
  • Profit new: 5€
  • P/E RATIO: 16


Result:

Although the share price has fallen by 20%, the share
even more expensive on a P/E basis than than before.


Learning:

Never buy a stock based on a single key figure!


#kgv
#kennzahlen
#finanzenfüranfänger

PS: Got it from the Instagramstory of investing.lifetime!

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19 Comments

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Maybe I'm on the wrong track right now. But yes, the stock is also more expensive. Purely from the internal value. The debt remains the same (or becomes more) but the profit becomes less and money is pulled out of the company. Accordingly, the share would still be too expensive at 80€ and the value would have to fall to 50€ to have the same valuation as before. Overall, however, I fully agree with you on your "learning". Never buy on the basis of a single key figure.
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Your statements could be projected 1-to-1 onto Meta. Allegedly value and undervalued due to a 10 P/E ratio, but with obvious negative trends that speak against an investment. But if you only invest based on one ratio, you can miss obvious red flags. Foresight, macro and fundamentals should be thoroughly examined.
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Understand your approach, but reduced to the little information about the company we have in your example, the P/E ratio would be the right decision support. I prefer to buy at 100€ with 10€ profit (10 P/E) than at 80€ with 5€ profit (16 P/E) ✌️
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In terms of content, I'm with you. I don't buy a share just on the basis of a key figure. But your example is a bit lame. The profit has fallen by 50%, but the price has only fallen by 20%. Therefore, in the new situation, the stock is proportionally more expensive than in the old situation. 
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Very cool copied from Marcus ✌️
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Not even PEG is enough. ROIC must be added as a minimum.
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What about the KUV? Because of the direct reference to past sales, this should be more suitable for valuations, right? In general, it is a thorn in my side when someone makes an investment based on a KPI. That is simply imprudent and careless. An evaluation via a proper financial tool (e.g. traderfox) is necessary in any case and even here sometimes gaps in knowledge remain open.
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