International Securities Exchange Reports Monthly Volume For November 2009

The International Securities Exchange (ISE) today reported average daily volume of 3.1 million contracts in November 2009.

Average daily trading volume for all options contracts decreased 11.0% to 3.1 million contracts in November as compared to 3.4 million contracts during the same period in 2008. Total options volume for the month decreased 6.3% to 61.1 million contracts from 65.2 million contracts in the same year-ago period.

On a year-to-date basis, average daily trading volume of all options decreased 4.7% to 3.9 million contracts traded. Total year-to-date options volume through November 2009 decreased 5.1% to 900.4 million contracts from 949.1 million contracts in the same period last year.

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

	Current Month			Year-to-Date
(000s)	Nov-09	Nov-08	% Change	Nov-09	Nov-08	% Change
ISE Average Daily Volume	3,054.3	3,432.0	-11.0%	3,914.8	4,108.5	-4.7%
ISE Total Volume	61,085.3	65,210.1	-6.3%	900,403.3	949,075.0	-5.1%
Industry Average Daily Volume	13,252.7	12,888.5	2.8%	14,424.6	14,550.7	-0.9%
Market Share	23.0%	26.6%	(3.6) pts	27.1%	28.2%	(1.1) pts
Market Share: Customer	24.8%	27.8%	(3.0) pts	29.1%	29.9%	(0.8) pts
Market Share: Firm	19.4%	27.5%	(8.1) pts	24.5%	30.7%	(6.2) pts
Market Share: Market Maker	22.5%	25.6%	(3.1) pts	26.2%	26.2%	0.0 pts

Equity and ETF Options Volume Statistics

	Current Month			Year-to-Date
(000s)	Nov-09	Nov-08	% Change	Nov-09	Nov-08	% Change
ISE Average Daily Volume	3,000.4	3,383.4	-11.3%	3,860.1	4,028.0	-4.2%
ISE Total Volume	60,007.9	64,285.4	-6.7%	887,814.9	930,474.5	-4.6%
Industry Average Daily Volume	12,144.6	11,752.2	3.3%	13,448.6	13,338.7	0.8%
Market Share	24.7%	28.8%	(4.1) pts	28.7%	30.2%	(1.5) pts
Market Share: Customer	26.3%	29.7%	(3.4) pts	30.6%	31.8%	(1.2) pts
Market Share: Firm	21.9%	31.7%	(9.8) pts	26.6%	33.7%	(7.1) pts
Market Share: Market Maker	24.0%	27.4%	(3.4) pts	27.6%	27.8%	(0.2) pts

Index Options Volume Statistics

	Current Month			Year-to-Date
(000s)	Nov-09	Nov-08	% Change	Nov-09	Nov-08	% Change
ISE Average Daily Volume	52.2	45.9	13.7%	53.4	73.4	-27.2%
ISE Total Volume	1,044.0	872.7	19.6%	12,272.5	16,962.6	-27.6%
Industry Average Daily Volume	1,106.4	1,133.6	-2.4%	974.6	1,204.9	-19.1%
Market Share	4.7%	4.1%	0.6 pts	5.5%	6.1%	(0.6) pts

ISE FX Options® Volume Statistics

	Current Month			Year-to-Date
(000s)	Nov-09	Nov-08	% Change	Nov-09	Nov-08	% Change
ISE Average Daily Volume	1.7	2.7	-37.0%	1.4	7.1	-80.3%
ISE Total Volume	33.4	52.0	-35.8%	315.9	1,637.9	-80.7%

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 November 6, 2009, ISE co-sponsored NYU's 2009 derivatives conference, Derivatives 2009: Looking Towards the Future. This important conference brought together leading academics and industry practitioners to discuss the changing derivatives environment and the lessons learned from the financial crisis.
ISE traded more volume than any other options exchange in 990 of 2,215 issues in its listings.