CBOE Holdings, reported that September 2012 consolidated trading volume for options contracts on the Chicago Board Options Exchange® (CBOE®) and C2 Options ExchangeSM (C2SM) and futures contracts on CBOE Futures Exchange SM (CFE®), totaled 92.9 million contracts.

September 2012 average daily volume (ADV) for the three exchanges, combined, was 4.9 million contracts, a two-percent decrease from 5.0 million contracts ADV in September 2011, and a 23-percent increase from nearly 4.0 million contracts ADV in August 2012.

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Year to date through September, consolidated ADV for the three exchanges was 4.7 million contracts, down seven percent from 5.0 million contracts ADV for the same period a year ago.

CBOE Trading Volume and Market Share

CBOE Trading Volume:

CBOE ADV – September ADV at CBOE was 4.6 million contracts, up 22 percent from August 2012 ADV of 3.7 million contracts and down three percent from 4.7 million contracts ADV in September 2011. Year to date through September, ADV was 4.4 million contracts, down eight percent from the same period in 2011.

The five most actively traded index and ETF options at CBOE during September were S&P 500® Index options (SPXSM), CBOE Volatility Index® (VIX® Index) options, Standard & Poor’s Depositary Receipts (SPY) options, iShares Trust Russell 2000 Index Fund (IWM) options and PowerShares QQQ Trust (QQQ) options.

CBOE Market Share:

CBOE September market share was 26.4 percent, up one percentage point from September 2011 and down 1.3 percentage points from August 2012. If the volume from dividend trades was excluded from industry data for September 2012, CBOE’s total market share would be 27.5 percent.

C2 Options Exchange Trading Volume and Market Share

C2 Trading Volume:

In September 2012, ADV on C2 Options Exchange was 184,800 contracts, up 34 percent from August 2012 ADV of 138,000 contracts and down 19 percent from 228,600 contracts ADV in September 2011.