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Trading & Technology  Market Information Circulars
Market Information Circulars
The ISE Options Exchange sends out Market Information Circulars (MICs) to notify members of important policy and trading changes affecting our options market. Please refer to this page for the latest updates.

Select Year:       


2010
MIC-2010-49
    [ August 31, 2010 ]
Labor Day Holiday

MIC-2010-48
    [ August 30, 2010 ]
Weekly Option Selections Updated

MIC-2010-47
    [ August 30, 2010 ]
Weekly Option Selections

MIC-2010-46
    [ August 17, 2010 ]
Step Up Functionality

MIC-2010-45
    [ August 6, 2010 ]
PrecISE Trade 4.1.1 Enhancements

MIC-2010-44
    [ July 20, 2010 ]
Penny Pilot Expansion Update

MIC-2010-43
    [ July 13, 2010 ]
Penny Pilot Expansion

MIC-2010-42
    [ July 2, 2010 ]
Weekly Option Selections

MIC-2010-41
    [ July 2, 2010 ]
ISE FX Options Margin Levels

MIC-2010-40
    [ July 2, 2010 ]
Additional Penny Pilot Classes

MIC-2010-39
    [ July 1, 2010 ]
Additional Penny Pilot Classes

MIC-2010-38
    [ July 1, 2010 ]
Independence Day

MIC-2010-37
    [ June 30, 2010 ]
Weekly Options

MIC-2010-36
    [ June 29, 2010 ]
Additional Penny Pilot Class

MIC-2010-35
    [ June 25, 2010 ]
PrecISE Trade 4.1 Enhancements

MIC-2010-34
    [ June 18, 2010 ]
Trading Restriction on DT

MIC-2010-33
    [ June 15, 2010 ]
Order Entry Price Validity-Check Threshold Reduction-revised

MIC-2010-32
    [ June 15, 2010 ]
ISE Handling of New Single Stock Circuit Breakers

MIC-2010-31
    [ June 7, 2010 ]
Trading Restriction on DAI

MIC-2010-30
    [ May 27, 2010 ]
Memorial Day 2010

MIC-2010-29
    [ May 27, 2010 ]
Trading Restriction on Options Series

MIC-2010-28
    [ May 26, 2010 ]
Trading Restriction on Options Series

MIC-2010-27
    [ May 21, 2010 ]
Option Markets Rebalance

MIC-2010-26
    [ May 13, 2010 ]
OSI Fifth Consolidation

MIC-2010-25
    [ May 6, 2010 ]
OSI Fourth Consolidation

MIC-2010-24
    [ April 22, 2010 ]
Order Entry Price Validity Check Threshold Reduction

MIC-2010-23
    [ April 22, 2010 ]
OSI Third Consolidation

MIC-2010-22
    [ April 21, 2010 ]
FX Options - New Earlier Opening Time

MIC-2010-21
    [ April 20, 2010 ]
Penny Pilot Expansion

MIC-2010-20
    [ April 8, 2010 ]
OSI Second Consolidation

MIC-2010-19
    [ April 7, 2010 ]
ISE FX Options Margin Levels

MIC-2010-18
    [ March 30, 2010 ]
Good Friday 2010

MIC-2010-17
    [ March 29, 2010 ]
ISEAlerts Upgrade

MIC-2010-16
    [ March 12, 2010 ]
OSI Initial Consolidation

MIC-2010-15
    [ March 4, 2010 ]
OSI Half Point Consolidation

MIC-2010-14
    [ March 3, 2010 ]
Reminder Regarding MIC 2010-12 PrecISE 4.0 version

MIC-2010-13
    [ February 24, 2010 ]
BATS options exchange

MIC-2010-12
    [ February 23, 2010 ]
PrecISE 4.0 version GE

MIC-2010-11
    [ February 19, 2010 ]
OSI Consolidation

MIC-2010-10
    [ February 8, 2010 ]
Presidents' Day

MIC-2010-09
    [ January 27, 2010 ]
OSI - ISE exchange status

MIC-2010-08
    [ January 19, 2010 ]
Penny Pilot Expansion Update

MIC-2010-07
    [ January 15, 2010 ]
Option Markets Rebalance

MIC-2010-06
    [ January 13, 2010 ]
Trading Restriction on MESA

MIC-2010-05
    [ January 13, 2010 ]
Penny Pilot Expansion

MIC-2010-04
    [ January 13, 2010 ]
Martin Luther King, Jr. - Holiday

MIC-2010-03
    [ January 8, 2010 ]
ISE FX Options Margin Levels

MIC-2010-02
    [ January 7, 2010 ]
OSI-Compliant PrecISE Version 3.3

MIC-2010-01
    [ January 4, 2010 ]
Additional Penny Pilot Classes