Notice to Members 2011-31

OCX.BETS® Account number field change. Effective Date: December 22, 2011

Holiday Notice

Holiday Trading Hours

Notice to Members 2011-30

Information Update: Market Depth Effective Date: December 5, 2011

Press Release 12/1/2011

OneChicago Announces Trading Volumes for November 2011

Notice to Members 2011-29

Changes to OCX.RiskMan™ for OCX.BETS® Trades Effective Date: November 17, 2011

Press Release 11/1/2011

OneChicago Announces Trading Volumes for October 2011 – October 2011 marks the one year anniversary of the OCX.NoDivRisk® product suite Chicago – November 1, 2011 – OneChicago, LLC (OCX), an equity finance exchange, today announced that a total of 170,470 security futures contracts were traded in the month of October 2011.

Notice to Members 2011-26

MF Global (OCC Firm 292) Restricted to Closing Only Date: October 31, 2011

Press Release 2011-10-20

OneChicago’s OSO Services Help Firms Meet FINRA Obligations New offering eliminates inefficiencies caused by manual processes and reduces operational risk Chicago – October 20, 2011 – OneChicago, LLC (OCX), an equity finance exchange, announced today the availability of its new Order Sending Organization (OSO) services designed to assist firms that execute point-and-click traded Exchange Future […]

Notice to Members 2011-24

The Financial Industry Regulatory Authority (FINRA) requires additional information on the OATS submission in conjunction with the OATS for Reg NMS expansion, which goes live on Monday, October 17, 2011. To accommodate for this expansion, OneChicago has updated the OCX.BETS® order/trade screen and the associated API to reflect the additional required information.

Notice to Members 2011-25

Changes in OCX.BETS and related OATS reporting processes have been made due to feedback from the trading community.

Notice to Members 2011-22

Updates for Trading on OCX.BETS® As of trade date Thursday October 7, 2011 two new changes will be implemented to the trading process on OCX.BETS®:

Press Release PR11-13 10/4/2011

OneChicago Announces Trading Volumes for September 2011 – OneChicago now lists 2,800 products, including 400 ETFs and more than 1,300 products in OCX.NoDivRisk™ suite

Notice to Members 2011-21

Effective Date Changes for: OATS Processing and Exchange Futures for Physical Trading on OCX.BETS®

Regulatory Memo Re: OATS Requirements

OATS Reporting Requirements Re:   OATS Exchange Futures for Physical Trading on OCX.BETS®         OATS Expansion         Information Barrier ID

Notice to Members 2011-20

Exchange Futures for Physical Trading on OCX.BETS® Effective Date: September 23, 2011 The Financial Industry Regulatory Authority (“FINRA”) has updated the OATS Reporting Technical Specifications to, among other items, expand OATS reporting to all Reg NMS stocks. These changes are effective October 3, 2011. As part of that expansion, FINRA is requiring additional information on […]

Notice to Members 2011-18

OATS Processing BETS Audit Trail reporting Real Time Reports Effective Date: October 3, 2011

Press Release PR11-12 09/2/2011

OneChicago Announces Trading Volumes for August 2011 -Volume up 25% over August 2010 -Open interest stood at 385,072 contracts on the equity finance exchange at the end of August

Notice to Members 2011-19

OneChicago Instance of CBOEdirect, GTC Stop Orders

Holiday Notice – Labor Day

Labor Day Holiday Trading Hours

Press Release PR11-11 08/16/2011

FFastFill Certifies as Independent Software Vendor for OneChicago

Press Release PR11-10 08/02/2011

OneChicago Announces Trading Volumes for July 2011 EFPs and block activity represented more than $370 million in notional value in July

Notice To Members 2011-17

Security Futures Products Rule Submission and Rule Certification Updated Revisions to OneChicago Rule 905 Expanding Trade Prices to Four (4) Decimal Points

Notice To Members 2011-16

OneChicago refines Execution Fee and Carry Fee structure for trading Security Futures (SSF)

Holiday Notice – Independence Day July 4th

Independence Day Holiday Trading Hours

Notice To Members 2011-15

Restricted Stock List Functionality added to OCX.RiskMan™ Effective: June 30, 2011

Notice To Members 2011-13

Change to EFP reporting for the equity leg. Effective: June 17, 2011

Press Release PR11-08 06/09/2011

OneChicago Offers OATS OSO Services for Point-and-Click Traded EFPs New service allows firms to meet FINRA regulatory obligations

Notice To Members 2011-12

OneChicago Offers Transmitting OSO (Order Sending Organization) Services to submit OATS reports on behalf of firms

Notice To Members 2011-11

OneChicago makes available OATS formatted Order Event records for the stock portion of Exchange Future for Physical (“EFP”) trades where OneChicago has submitted the stock portion to the FINRA/NASDAQ trade reporting facility.

Press Release PR11-07 06/01/2011

OneChicago Reports May Volume

Press Release PR11-06 05/04/2011

OneChicago Unveils New Name for Innovative Product, OCX.NoDivRisk Updated identifier reflects the product’s value to investors

Press Release PR11-05 05/01/2011

OneChicago Reports April Volume 49% of Month End Open Interest was in OCX.NoDivRisk™ products

Notice to Members 2011-6

As previously announced, OneChicago is changing its trading fee structure to more closely align it’s pricing with similar equity financing tools. We have prepared the following Questions and Answers to improve our customer’s understanding of the new fee structure.

Holiday Notice – Good Friday

Good Friday Holiday Trading Hours

Press Release – New Fee Structure

OneChicago Changes Fee Structure to Highlight Significant Cost Savings

Notice to Members 2011-5

OneChicago Fee Data Files

Press Release PR11-04 04/01/2011

OneChicago Reports March Volume, Increase of 24% over March 2010 – March numbers round off a quarter of steady volume increase

Notice to Members 2011-4

March 14, 2011 RE: OneChicago Fee Structure Changes

Notice to Members

Addition of Contract Months

Press Release PR11-03 03/03/2011

OneChicago Reports February Volume

Holiday Notice – Presidents’ Day

Presidents’ Day Trading Hours

Notice to Members

Addition of Contract Month

Notice to Members 2011-3

OneChicago Near Real Time OCX.BETS Reports

Special Notice to the DIA Symbol Contract

OneChicago will launch 1C & 1D futures contracts with a 1,000 multiplier on the SPDR Dow Jones Industrial Average ETF (“DIA”) in the coming weeks. To accommodate these news contracts the current 100 multiplier contracts , which use the DIA symbol will have a symbol change to DIAM in keeping with OneChicago’s other 100 muliplier […]

Holiday Notice – MLK Jr. Day

Holiday hours: View PDF

Notice to Members 2011-1

Expanding Trade Prices to Four (4) Decimal Points on 1/18/2011.