9. Other Income

The components of other income for the three months and nine months ended September 30, 2018 and 2017 were:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(in millions)
Market data fees1	$	12	$	11	$	34	$	29
Risk exposure fees1		5		6		20		17
Payments for order flow1		6		4		16		12
Minimum activity fees1		6		4		16		14
Other brokerage related fees		7		3		18		8
Gains on financial instruments, at fair value and other investments, net		4		5		15		7
Gains (losses) from currency diversification strategy, net		(24)		26		(7)		104
Other, net		5		11		9		14
	$	21	$	70	$	121	$	205

(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 our 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.