der Call
call
(Anglicism) A phone call or video conference, usually in a professional context.
Ich kann gerade nicht, ich bin in einem wichtigen Call.
I can't right now; I'm in an important call.

call
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call
(Anglicism) A phone call or video conference, usually in a professional context.
Ich kann gerade nicht, ich bin in einem wichtigen Call.
I can't right now; I'm in an important call.

'Call' is an English loanword (Anglicism) that is used especially in the professional and corporate world (office language). The pronunciation is based on English.
Ich habe um 15 Uhr einen Call mit dem Projektteam.
I have a call with the project team at 3 p.m.
You can recognize the meaning from the context. If it is about work, meetings, or phone calls, it means a conference. If it is about stocks, the stock exchange, or finance, it means a call option.
Ich muss den Call mit dem Kunden vorbereiten.
I need to prepare the call with the client.
In a professional context, 'Call' is often used with certain verbs: 'einen Call haben' (to have a call), 'in einem Call sein' (to be in a call), or 'an einem Call teilnehmen' (to take part in a call).
Kannst du später zurückrufen? Ich bin gerade in einem Call.
Can you call back later? I'm in a call right now.
In the meaning 'Kaufoption' (call option), 'Call' is a purely technical term from the world of finance. Outside this context, the word is not understood this way.
Mit einem Call sichert sich der Anleger das Recht, die Aktie später zu kaufen.
With a call option, the investor secures the right to buy the stock later.
option
'die Option' and 'der Call' can be connected in finance. An option there is a contractual right to buy or sell something later. A call is a specific type of option: it gives the right to buy something. So not every option is a call. There are other kinds of options too. The words can be confused because, in a financial context, 'Call' is often short for 'Kaufoption' (call option). Also important: outside finance, 'Call' usually means a phone call or video call and then has nothing to do with an option.

Am Morgen kauft Samir einen Call auf die Aktie, weil er steigende Kurse erwartet.
In the morning, Samir buys a call on the stock because he expects prices to rise.
Der Anleger prüft die Option, bevor er den Vertrag unterschreibt.
The investor reviews the option before signing the contract.