Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 392.4	$ 245.4
Financial investments	26.7	92.4
Accounts receivable, net of $1.3 allowance for credit losses at September 30, 2021 and $0.6 at December 31, 2020	324.2	337.3
Margin deposits and clearing funds	1,665.6	812.1
Income taxes receivable	48.3	53.1
Other current assets	41.6	26.5
Total current assets	2,498.8	1,566.8
Investments	36.0	42.7
Land	2.3
Property and equipment, net	102.4	82.6
Property held for sale		13.0
Operating lease right of use assets	114.1	111.0
Goodwill	3,024.7	2,895.1
Intangible assets, net	1,701.0	1,729.0
Other assets, net	103.4	76.3
Total assets	7,582.7	6,516.5
Current liabilities:
Accounts payable and accrued liabilities	259.6	250.0
Section 31 fees payable	9.7	152.9
Deferred revenue	13.9	10.2
Margin deposits and clearing funds	1,665.6	812.1
Income taxes payable	5.7	4.2
Current portion of long-term debt		68.7
Current portion of contingent consideration liabilities	63.2	15.2
Total current liabilities	2,017.7	1,313.3
Long-term debt	1,298.9	1,135.2
Unrecognized tax benefits	196.8	164.7
Deferred income taxes	393.9	377.6
Non-current operating lease liabilities	132.9	132.1
Contingent consideration liabilities	12.0	17.5
Other non-current liabilities	33.5	27.2
Total liabilities	4,085.7	3,167.6
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value: 20,000,000 shares authorized, no shares issued and outstanding at September 30, 2021 and December 31, 2020
Common stock, $0.01 par value: 325,000,000 shares authorized, 126,226,121 and 106,642,977 shares issued and outstanding, respectively at September 30, 2021 and 125,998,967 and 107,299,933 shares issued and outstanding, respectively at December 31, 2020	1.3	1.2
Common stock in treasury, at cost, 19,583,144 shares at September 30, 2021 and 18,699,034 shares at December 31, 2020	(1,337.7)	(1,250.4)
Additional paid-in capital	2,736.3	2,713.3
Retained earnings	2,031.1	1,809.8
Accumulated other comprehensive income, net	66.0	75.0
Total stockholders' equity	3,497.0	3,348.9
Total liabilities and stockholders' equity	$ 7,582.7	$ 6,516.5