CBOE Holdings Reports October 2012 Consolidated Trading Volume - VIX Futures Volume Totaled Busiest Month Ever

CBOE Holdings, Inc. (NASDAQ: CBOE) reported today that October 2012 consolidated trading volume for options contracts on the Chicago Board Options Exchange® (CBOE®) and C2 Options Exchange^SM(C2^SM) and futures contracts on CBOE Futures Exchange^SM(CFE®) totaled 85.8 million contracts. The exchanges were closed for two days -- October 29 and 30 -- due to equity exchange closures caused by Hurricane Sandy.

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October 2012 average daily volume (ADV) for the three exchanges, combined, was 4.1 million contracts, a 19-percent decrease from 5.0 million contracts ADV in October 2011, and a 16-percent decrease from nearly 4.9 million contracts ADV in September 2012.
Year to date through October, consolidated ADV for the three exchanges was 4.6 million contracts, down eight percent from 5.0 million contracts ADV for the same period a year ago.

CBOE Holdings Consolidated Trading Volume						Year-To-Date
(trades in thousands)	Oct 2012	Oct 2011	% Chg	Sep 2012	% Chg	Oct 2012	Oct 2011	% Chg
Trading Days	21	21		19		209	210
Total Contracts - Options and Futures	85,838.9	106,059.3	-19%	92,870.4	-8%	964,401.6	1,058,319.9	-9%
Total Options Contracts (CBOE & C2)	83,389.5	105,160.9	-21%	90,459.9	-8%	945,706.1	1,047,717.6	-10%
Futures Contracts	2,449.4	898.4	173%	2,410.5	2%	18,695.5	10,602.3	76%

Total ADV - Options and Futures	4,087.6	5,050.4	-19%	4,887.9	-16%	4,614.4	5,039.6	-8%
Total Options ADV (CBOE & C2)	3,970.9	5,007.7	-21%	4,761.0	-17%	4,524.9	4,989.1	-9%
Futures ADV	116.6	42.8	173%	126.9	-8%	89.5	50.5	77%

CBOE Trading Volume and Market Share

CBOE Trading Volume:

October ADV at CBOE was 3.8 million contracts, down 18 percent from September 2012 ADV of 4.6 million contracts and down 21 percent from 4.7 million contracts ADV inOctober 2011. Year to date through October, ADV was 4.3 million contracts, down nine percent from the same period in 2011.
The five most actively traded index and ETF options at CBOE during October were S&P 500® Index options (SPX^SM), CBOE Volatility Index® (VIX® Index) options, Standard & Poor's Depositary Receipts (SPY) options, PowerShares QQQ Trust (QQQ) options and iShares Trust Russell 2000 Index Fund (IWM) options.

CBOE Trading Volume Current Month						Year-To-Date
(trades in thousands)	Oct 2012	Oct 2011	% Chg	Sep 2012	% Chg	Oct 2012	Oct 2011	% Chg
Trading Days	21	21		19		209	210
Total Exchange	79,104.3	99,532.7	-21%	86,948.4	-9%	903,762.4	997,385.5	-9%
Total Exchange ADV	3,766.9	4,739.7	-21%	4,576.2	-18%	4,324.2	4,749.5	-9%
Equity Options	35,050.9	38,681.4	-9%	38,213.5	-8%	414,017.2	434,218.0	-5%
Equity Options ADV	1,669.1	1,842.0	-9%	2,011.2	-17%	1,980.9	2,067.7	-4%
Index Options	24,872.9	29,298.8	-15%	26,394.3	-6%	247,889.1	273,963.4	-10%
Index Options ADV	1,184.4	1,395.2	-15%	1,389.2	-15%	1,186.1	1,304.6	-9%
ETF Options	19,180.4	31,552.6	-39%	22,340.6	-14%	241,856.1	289,204.0	-16%
ETF Options ADV	913.4	1,502.5	-39%	1,175.8	-22%	1,157.2	1,377.2	-16%

Expanded October 2012 volume information for CBOE index and ETF options is available at: www.cboe.com/data/monthlyvolume.aspx.

CBOE Market Share:

CBOE October market share was 24.4 percent, down 1.1 percentage points from October 2011 and down two percentage points from September 2012. If the volume from dividend trades was excluded from industry data for October 2012, CBOE's total market share would be 25.4 percent.

Exclusion of dividend trades from total industry volume data presents a more relevant measure of the relative trends in the options business.

CBOE Market Share Current Month						Year-To-Date
	Oct 2012	Oct 2011	% Pt. Chg	Sep 2012	% Pt. Chg	Oct 2012	Oct 2011	% Pt. Chg
Total Exchange	24.4%	25.5%	-1.1%	26.4%	-2.0%	26.9%	25.6%	1.3%
Total Exchange (excl. dividend trades)	25.4%	25.7%	-0.3%	27.5%	-2.1%	28.1%	26.3%	1.8%
Equity Options	17.9%	19.6%	-1.7%	21.2%	-3.3%	21.6%	20.7%	0.9%
Equity Options (excl. dividend trades)	20.4%	20.6%	-0.2%	23.8%	-3.4%	23.9%	22.1%	1.8%
Index Options	94.5%	95.0%	-0.5%	93.6%	0.9%	94.1%	94.8%	-0.7%
Index Options (excl. dividend trades)	93.9%	94.9%	-1.0%	93.2%	0.7%	93.8%	94.8%	-1.0%
ETF Options	18.8%	19.3%	-0.5%	18.5%	0.3%	20.6%	19.2%	1.4%
ETF Options (excl. dividend trades)	18.8%	19.4%	-0.6%	18.5%	0.3%	20.8%	19.4%	1.4%

C2 Options Exchange Trading Volume and Market Share

C2 Trading Volume:

In October 2012, ADV on C2 Options Exchange was 204,100 contracts, up 10 percent from September 2012 ADV of 184,800 contracts and down 24 percent from 268,000 contracts ADV in October 2011.

C2 Trading Volume Current Month						Year-To-Date
(trades in thousands)	Oct 2012	Oct 2011	% Chg	Sep 2012	% Chg	Oct 2012	Oct 2011	% Chg
Trading Days	21	21		19		209	210
Total Exchange	4,285.2	5,628.1	-24%	3,511.5	22%	41,943.8	44,100.0	-5%
Total Exchange ADV	204.1	268.0	-24%	184.8	10%	200.7	210.0	-4%
Equity Options	1,731.9	2,110.4	-18%	1,362.0	27%	16,832.8	15,921.2	6%
Equity Options ADV	82.5	100.5	-18%	71.7	15%	80.5	75.8	6%
Index Options	142.5	100.3	42%	99.7	43%	1,247.3	100.3	NA
Index Options ADV	6.8	5.0	35%	5.2	29%	6.0	5.0	19%
ETF Options	2,410.9	3,417.5	-29%	2,049.8	18%	23,863.6	28,078.5	-15%
ETF Options ADV	114.8	162.7	-29%	107.9	6%	114.2	133.7	-15%

C2 Market Share:

In October 2012, C2's market share was 1.3 percent, down 0.1 of a percentage point from October 2011 and down 0.2 of a percentage point from September 2012.

C2 Market Share Current Month						Year-To-Date
	Oct 2012	Oct 2011	% Pt. Chg	Sep 2012	% Pt. Chg	Oct 2012	Oct 2011	% Pt. Chg
Total Exchange	1.3%	1.4%	-0.1%	1.1%	0.2%	1.3%	1.1%	0.2%
Total Exchange (excl. dividend trades)	1.4%	0.9%	0.5%	1.1%	0.3%	1.3%	1.2%	0.1%
Equity Options	0.9%	1.1%	-0.2%	0.8%	0.1%	0.9%	0.8%	0.1%
Equity Options (excl. dividend trades)	0.9%	1.1%	-0.2%	0.8%	0.1%	0.9%	0.8%	0.1%
Index Options	0.5%	0.3%	0.2%	0.4%	0.1%	0.5%	0.8%	-0.3%
Index Options (excl. dividend trades)	0.6%	0.3%	0.3%	0.4%	0.2%	0.5%	--	0.5%
ETF Options	2.4%	2.1%	0.3%	1.7%	0.7%	2.0%	1.9%	0.2%
ETF Options (excl. dividend trades)	2.4%	2.1%	0.3%	1.7%	0.7%	2.1%	1.9%	0.2%

CBOE Futures Exchange Trading

In October, total trading volume in futures on the CBOE Volatility Index® (VIX®) reached an all-time high for any month in CFE's history.
A record 2,443,878 VIX futures contracts changed hands in October, beating the September 2012 record of 2,400,552 contracts.
VIX futures average daily volume (ADV) in October was 116,375 contracts, second only to September 2012's record ADV of 126,871 contracts.

CBOE Holdings Average Transaction Fee Per Contract

The following represents the average transaction fee per contract based on a three-month rolling average, reported on a one-month lag. The average transaction fee per contract represents total transaction fees for CBOE, C2 and CFE recognized for the period divided by total contracts traded on all three exchanges during the period. Average transaction fees per contract can be affected by various factors, including exchange fee rates, volume-based discounts and transaction mix by contract type and product type.

(In dollars)	Three-Month Period Ended
Product:	September 2012	August 2012	July 2012	June 2012
Equities	$0.118	$0.122	$0.124	$0.123
Indexes	0.682	0.684	0.680	0.677
Exchange Traded Funds	0.177	0.177	0.177	0.180
Total Options Average Transaction Fee Per Contract	0.287	0.286	0.289	0.288
Futures	1.606	1.626	1.598	1.607
Total Average Transaction Fee Per Contract	$0.317	$0.315	$0.316	$0.314