Why is it die Investition?

Investition ends in -ion, and almost all nouns ending in -ion are feminine: in a German dictionary, 94% of them take die.

All nouns ending in -ion
Sense 1
die

Meaning

[1] Economy: Creation of capital in assets to make profit

[1] Wirtschaft: Anlage von Kapital in Vermögen, um Gewinn zu erzielen

Examples

[1] A low inflation often results in a decline in interest rates and the amortization of investments is increased

[1] Eine niedrige Inflation zieht oft einen Rückgang der Zinssätze nach sich und die Amortisation von Investitionen wird gesteigert.

[1] "No investment without prior return calculation"

[1] „Keine Investition ohne vorherige Renditenkalkulation.“
More source examples (1)

These dictionary examples can include historical and less common uses.

[1] "We drive from one street construction site to the next, the investments in the infrastructure are huge, villages that were still in the dark three years ago are now connected to the power grid"

[1] „Wir fahren von einer Straßenbaustelle zur nächsten, die Investitionen in die Infrastruktur sind gewaltig, Dörfer, die vor drei Jahren noch im Dunkeln lagen, sind mittlerweile an das Stromnetz angeschlossen.“

Declension

1 Singular Plural
Nominativ die Investition die Investitionen
Genitiv der Investition der Investitionen
Dativ der Investition den Investitionen
Akkusativ die Investition die Investitionen

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary