9. Other Income

The components of other income for the three months ended March 31, 2019 and 2018 were:



	Three Months Ended March 31,
	2019		2018
	(in millions)
Market data fees1	$	12	$	11
Risk exposure fees1		4		8
Payments for order flow1		5		5
Minimum activity fees1		7		5
Other brokerage related fees		6		5
Gains on financial instruments, at fair value and other investments, net		116		2
Gains (losses) from currency diversification strategy, net		(19)		38
Other, net		1		3
	$	132	$	77

(1)

See Note 8 for description of these revenues.

Other brokerage related fees include FDIC sweep fees, order routing fees, IPO concession fees and other miscellaneous fees charged to customers. Gains on financial instruments, at fair value and other investments, net include (1) realized and unrealized gains and losses on financial instruments that (a) are held for purposes other than the Company’s market making activities, (b) are subject to restrictions, or (c) are accounted for under the equity method and (2) dividends on investments accounted at cost less impairment.