Condensed Consolidated Income Statements - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Sales of physical commodities	$ 4,703.2	$ 3,847.4	$ 11,503.8	$ 31,633.3
Trading gains, net	83.4	79.7	243.8	234.8
Commission and clearing fees	58.2	46.0	159.4	142.7
Consulting and management fees	8.0	11.3	27.3	31.0
Interest income	15.6	10.6	42.8	22.7
Other income	0.1	0.1	0.2	0.3
Total revenues	4,868.5	3,995.1	11,977.3	32,064.8
Cost of sales of physical commodities	4,693.5	3,843.5	11,484.9	31,619.2
Operating revenues	175.0	151.6	492.4	445.6
Transaction-based clearing expenses	35.2	30.2	97.9	91.4
Introducing broker commissions	14.8	13.1	40.8	37.6
Interest expense	7.7	4.9	20.8	12.1
Net operating revenues	117.3	103.4	332.9	304.5
Compensation and other expenses:
Compensation and benefits	69.4	62.8	197.7	182.3
Communication and data services	7.9	7.3	23.1	21.2
Occupancy and equipment rental	3.2	3.3	9.7	10.2
Professional fees	3.3	2.5	8.9	8.9
Travel and business development	2.9	2.5	8.4	7.8
Depreciation and amortization	2.1	1.7	6.2	5.4
Bad debts	0.0	0.4	4.6	3.2
Other	7.1	5.7	20.8	16.6
Total compensation and other expenses	95.9	86.2	279.4	255.6
Income before tax	21.4	17.2	53.5	48.9
Income tax expense	6.8	5.0	15.6	14.3
Net income	$ 14.6	$ 12.2	$ 37.9	$ 34.6
Earnings per share:
Basic	$ 0.79	$ 0.64	$ 2.03	$ 1.82
Diluted	$ 0.78	$ 0.62	$ 2.00	$ 1.78
Weighted-average number of common shares outstanding:
Basic	18,138,754	18,698,734	18,461,063	18,573,617
Diluted	18,322,451	19,084,747	18,655,672	18,953,171