Investments (Tables)

3 Months Ended

Dec. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Investments

Our investments consist of (in millions):

	December 31, 2023		September 30, 2023
Fixed income securities	$	0.6	$	0.6
Equity securities (other)	98.5		96.0
Other	63.4		61.1
Total investments	162.5		157.7
Less: Short-term investments (1)	(0.6)		(0.6)
Long-term investments	$	161.9	$	157.1

(1) Short-term investments are included in Other current assets in the Consolidated Balance Sheet.

Gain (Loss) on Securities

We record gains and losses on investments within the Change in fair value of investments line in the Consolidated Statement of Operations. The gains and losses on investments we recorded for the following periods were (in millions):

	Three Months Ended December 31,
	2023		2022
Net gain on equity securities (level 1)	$	—	$	141.0
Net gain on equity securities (other)	2.5		—
Equity method gain (loss) on Other investments	0.6		(0.4)
Change in fair value of investments	3.1		140.6
Total net realized gain on equity securities	—		33.9
Total net unrealized gain on equity securities	$	2.5	$	107.1