ISE Reports Monthly Volume For September 2009

The International Securities Exchange (ISE) today reported average daily volume of 3.7 million contracts in September 2009.

Average daily trading volume for all options contracts decreased 22.9% to 3.7 million contracts in September as compared to 4.8 million contracts during the same period in 2008. Total options volume for the month decreased 22.9% to 78.3 million contracts from 101.5 million contracts in the same year-ago period.

On a year-to-date basis, average daily trading volume of all options decreased 3.3% to 4.0 million contracts traded. Total year-to-date options volume through September 2009 decreased 3.8% to 752.1 million contracts from 781.9 million contracts in the same period last year.

Total Options Volume (Equity, ETF, Index and FX Options)

	Current Month			Year-to-Date
(000s)	Sep-09	Sep-08	% Change	Sep-09	Sep-08	% Change
ISE Average Daily Volume	3,726.6	4,834.9	-22.9%	4,000.4	4,137.1	-3.3%
ISE Total Volume	78,258.5	101,533.0	-22.9%	752,072.7	781,910.9	-3.8%
Industry Average Daily Volume	14,990.9	17,834.8	-15.9%	14,479.6	14,499.4	-0.1%
Market Share	24.9%	27.1%	(2.2) pts	27.6%	28.5%	(0.9) pts
Market Share: Customer	27.0%	29.1%	(2.1) pts	29.7%	30.3%	(0.6) pts
Market Share: Firm	21.6%	28.4%	(6.8) pts	25.2%	31.1%	(5.9) pts
Market Share: Market Maker	23.8%	25.1%	(1.3) pts	26.5%	26.2%	0.3 pts

Equity and ETF Options Volume Statistics

	Current Month			Year-to-Date
(000s)	Sep-09	Sep-08	% Change	Sep-09	Sep-08	% Change
ISE Average Daily Volume	3,673.2	4,721.9	-22.2%	3,945.9	4,055.0	-2.7%
ISE Total Volume	77,136.2	99,159.9	-22.2%	741,838.5	766,395.2	-3.2%
Industry Average Daily Volume	13,993.5	16,252.5	-13.9%	13,529.5	13,339.3	1.4%
Market Share	26.2%	29.1%	(2.9) pts	29.2%	30.4%	(1.2) pts
Market Share: Customer	28.4%	31.1%	(2.7) pts	31.2%	32.2%	(1.0) pts
Market Share: Firm	23.7%	31.3%	(7.6) pts	27.2%	33.8%	(6.6) pts
Market Share: Market Maker	24.9%	26.7%	(1.8) pts	28.0%	27.8%	0.2 pts

Index Options Volume Statistics

	Current Month			Year-to-Date
(000s)	Sep-09	Sep-08	% Change	Sep-09	Sep-08	% Change
ISE Average Daily Volume	52.5	97.7	-46.3%	53.1	74.1	-28.3%
ISE Total Volume	1,102.1	2,051.9	-46.3%	9,984.1	14,009.2	-28.7%
Industry Average Daily Volume	996.5	1,567.1	-36.4%	948.7	1,152.1	-17.7%
Market Share	5.3%	6.2%	(0.9) pts	5.6%	6.4%	(0.8) pts

ISE FX Options® Volume Statistics

Current Month

Year-to-Date

(000s)

Sep-09

Sep-08

% Change

Sep-09

Sep-08

% Change

ISE Average Daily Volume

1.0

15.3

-93.5%

1.3

8.0

-83.8%

ISE Total Volume

20.2

321.2

-93.7%

250.1

1,506.6

-83.4%

ISE's market share statistics continue to be negatively impacted by trading strategies that are permitted based on a non-economic rationale. These strategies include dividend trades and synthetic short interest trades. These trades temporarily inflate and distort trading volume and market share when transacted.

Monthly Highlights

On September 22, 2009, ISE launched dual currency conventions for four currency pairs in its portfolio of ISE FX Options. The "in US$" currency convention, typically used in the FX spot market, is now available alongside ISE's USD-based currency convention for options on the Australian dollar, British pound, Euro and New Zealand dollar. Timber Hill is serving as the Primary Market Maker for these new products.

On September 29, 2009, ISE announced that the First Trust Advisors portfolio of exchange traded funds (ETFs) based on ISE's proprietary indexes has reached over $500 million in aggregate assets under management. ISE's "pure play" indexes serve as benchmarks for the ETFs that target high growth sectors including natural gas, global wind energy, the emerging markets of China and India, global engineering and construction services and the water industry.

ISE traded more volume than any other options exchange in 1,077 of 2,107 issues in its listings.