NASDAQ TotalView Aggregated Version 1.1

Transcription

1 NASDAQ TtalView Aggregated Versin Overview NASDAQ TtalView-Aggregated SM is a direct data feed prduct ffered by The NASDAQ Stck Market. NASDAQ TtalView-Aggregated Versin 1.1 is being released in assciatin f the equity symblgy initiative and will supprt issue symbls up t 8 characters in ttal length. NASDAQ TtalView-Aggregated features the fllwing data elements fr all exchangelisted equities securities traded via the NASDAQ executin system: NASDAQ Price Level Data: Fr NASDAQ executin system, NASDAQ aggregates the rder and qutatin depth at each price pint. Fr each price pint, NASDAQ shws the aggregated number f shares available fr each market participant ID as well as the ttal amunt fr NASDAQ executin system. TtalView-Aggregated carries price level data fr NYSE-, NYSE Amex-, NYSE Arca- and BATS-listed securities as well as fr NASDAQ-listed securities. Net Order Imbalance Data: In the minutes leading up t the NASDAQ Crsses, NASDAQ disseminates the indicative clearing price and net rder imbalance in the NASDAQ market system. Because the calculatin includes nn-displayable as well as displayable rder types, the net rder imbalance indicatr (NOII) is the best predictr f the NASDAQ pening and clsing prices available t the public. Administrative messages, such trading actins, symbl directry and market participant psitin messages: Trading actin messages are used t infrm market participants when a security is halted / paused r released fr trading. Symbl Directry messages prvide basic security data such as the market tier and Financial Status Indicatr. Market participant psitin message carries the Primary Market Maker status, Market Participant status and Market Maker mde fields used by sme firms t cmply with market regulatins. Event cntrls, such as start f day, end f day and emergency market halt/resume. 2. Architecture The TtalView-Aggregated feed is made up f a series f sequenced messages. Each message is variable in length based n the message type and is cmpsed f nncntrl ASCII bytes. The messages that make up the Ttalview Aggregated prtcl are typically delivered using a higher level prtcl that takes care f sequencing and delivery guarantees.

2 NASDAQ ffers the TtalView Aggregated data feed in three prtcl ptins: Prtcl Optin SupTCP Cmpressed via SupTCP MldUDP Number f Outbund Channels Single utbund channel fr all securities Single utbund channel fr all securities Eight utbund data channels using alphabetic split (See Appendix A) 3. Data Types All numeric fields are represented in ASCII digits and are right-justified. Padding spaces appear n the left as necessary. Prices are given in decimal frmat with 6 whle number places fllwed by 4 decimal digits. The whle number prtin is padded n the left with spaces; the decimal prtin is padded n the right with zers. The decimal pint is implied by psitin; it des nt appear inside the price field. Timestamp reflects the NASDAQ system time at which the utbund message was generated. NASDAQ states time as the number f millisecnds past midnight. The time zne is U.S. Eastern Time. All alpha fields are left-justified. Padding spaces appear n the right as necessary. 4. Message Frmats NASDAQ TtalView Aggregated supprts fur basic types f messages: System Events NASDAQ Single Bk Price Levels NASDAQ Net Order Imbalance Indicatrs Administrative Data Within the system event and administrative types, NASDAQ may supprt multiple message frmats as utlined belw. Versin /1/2013 Page 2

3 4.1 System Event Message The system event message type is used t signal a market r data feed handler event. The frmat is as fllws: SYSTEM EVENT MESSAGE Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the system event was generated. Time is represented as number f secnds and millisecnds past midnight, Eastern Time (ET). Message 8 1 S System Event Message Type Event Cde 9 1 Alpha Refer t System Event Cdes belw NASDAQ supprts the fllwing event cdes n a daily basis. SYSTEM EVENT CODES DAILY Cde Explanatin O Start f Messages. This is always the first message sent in any trading day. S Start f System Hurs. This message indicates that NASDAQ is pen and ready t start accepting rders. Q Start f Market Hurs. This message is intended t indicate that Market Hurs rders are available fr executin. X Clear NOII - Opening Crss Data. This message signals that firms may clear NOII cache fr the regular Opening Crss. M End f Market Hurs. This message is intended t indicate that Market Hurs rders are n lnger available fr executin. E End f System Hurs. It indicates that NASDAQ is nw clsed and will nt accept any new rders. C End f Messages. This is always the last message sent in any trading day. Fr initial implementatin f Single Bk, this message will be disseminated between 8:00 and 9:00 p.m., ET. NASDAQ is capable f supprting the fllwing event cdes fr an emergency market situatin n TtalView-Aggregated. These messages will be disseminated if NASDAQ needs t evke an emergency market cnditin (EMC) as the result f circuit breaker rules r ther majr market emergency. SYSTEM EVENT CODES AS NEEDED Cde Explanatin A Emergency Market Cnditin Halt: This message is sent t infrm NASDAQ market participants that the EMC is in effect. N trading is allwed during the EMC. R Emergency Market Cnditin Qute Only Perid: This message is sent t infrm NASDAQ market participants that the EMC qutatin nly perid is in effect. B Emergency Market Cnditin Resumptin: This message is sent t infrm NASDAQ market participants that EMC is n lnger in effect. Versin /1/2013 Page 3

4 4.2 Administrative Messages Stck Directry At the start f each trading day, NASDAQ disseminates stck directry messages fr all active symbls in the NASDAQ executin system. Market data redistributrs shuld prcess this message t ppulate the Financial Status Indicatr (required display field) and the Market Categry (recmmended display field) fr NASDAQ-listed issues. STOCK DIRECTORY Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the directry message was generated. Refer t Data Types fr field prcessing ntes. Message Type 8 1 R Stck Directry Message Stck 9 8 Alphanumeric Dentes the security symbl fr the issue in the NASDAQ executin system. Market Categry 17 1 Alphanumeric Indicates Listing market r listing market tier fr the issue Financial Status Indicatr N = New Yrk Stck Exchange (NYSE) A = NYSE Amex P = NYSE Arca Q = NASDAQ Glbal Select Market SM G = NASDAQ Glbal Market SM S = NASDAQ Capital Market Space = Nt available Z = BATS BZX Exchange 18 1 Alphanumeric Fr NASDAQ-listed issues, this field indicates when a firm is nt in cmpliance with NASDAQ cntinued listing requirements. D = Deficient E = Delinquent Q = Bankrupt S = Suspended G = Deficient and Bankrupt H = Deficient and Delinquent J = Delinquent and Bankrupt K = Deficient, Delinquent and Bankrupt Space = Cmpany is in cmpliance, if NASDAQ-listed issue Fr NYSE, NYSE Amex, NYSE Arca and BATS issues, this field will be space-filled. Redistributrs shuld refer t SIAC feeds fr cde if Versin /1/2013 Page 4

5 Rund Lt Size Rund Lts Only needed Numeric Indicates the number f shares that represent a rund lt fr the issue 25 1 Alphanumeric Indicates if NASDAQ system limits rder entry fr issue Y = nly rund lts are accepted in this stck N = dd/mixed lts are allwed Stck Trading Actin NASDAQ uses this administrative message t indicate the current trading status f a security t the trading cmmunity. Prir t the start f system hurs, NASDAQ will send ut a Trading Actin spin. In the spin, NASDAQ will send ut a Stck Trading Actin message with the T (Trading Resumptin) fr all NASDAQ- and ther exchange-listed securities that are eligible fr trading at the start f the system hurs. If a security is absent frm the pre-pening Trading Actin spin, firms shuld assume that the security is being treated as halted in the NASDAQ platfrm at the start f the system hurs. Please nte that securities may be halted in the NASDAQ system fr regulatry r peratinal reasns. After the start f system hurs, NASDAQ will use the Trading Actin message t relay changes in trading status fr an individual security. Messages will be sent when a stck is: Halted Paused* Released fr qutatin Released fr trading * The paused status will be disseminated fr NASDAQ-listed securities nly. Trading pauses n nn- NASDAQ listed securities will be treated simply as a halt. STOCK TRADING ACTION Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the stck trading actin message was generated Message 8 1 H Stck Trading Actin Message Type Stck 9 8 Alphanumeric Dentes the security symbl fr the issue in the NASDAQ executin system. Current Trading State 17 1 Alphabetic Reflects the current trading state fr the issue H = Halted acrss all U.S. equity markets / SROs P = Paused acrss all U.S. equity markets / SROs (NASDAQ-listed securities nly) Q = Qutatin nly perid fr crss- SRO halt r pause T = Trading n NASDAQ Reasn 18 4 Alphanumeric Reflects the Market Ops r MarketWatch cde fr the trading state change. Refer t Appendix C fr values. Versin /1/2013 Page 5

6 4.2.3 Reg SHO Shrt Sale Price Test Restricted Indicatr In February 2011, the Securities and Exchange Cmmissin (SEC) will implement changes t Rule 201 f the Regulatin SHO (Reg SHO). Fr details, please refer t SEC Release Number In assciatin with the Reg SHO rule change, NASDAQ will intrduce the fllwing Reg SHO Shrt Sale Price Test Restricted Indicatr message frmat. Fr NASDAQ-listed issues, NASDAQ will supprt a full pre-pening spin f Reg SHO Shrt Sale Price Test Restricted Indicatr messages indicating the Rule 201 status fr all active issues. NASDAQ will als send the Reg SHO Shrt Sale Price Test Restricted Indicatr message in the event f an intraday status change. NASDAQ will prcess rders based n the mst Reg SHO Restrictin status value. REG SHO RESTRICTION Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the Reg SHO message was generated Message Type 8 1 Y Reg SHO Shrt Sale Price Test Restricted Indicatr Stck 9 8 Alpha Stck symbl right padded with spaces. Reg SHO Actin 17 1 Alpha Dentes the Reg SHO Shrt Sale Price Test Restrictin status fr the issue at the time f the message disseminatin. Allwable values are: 0 = N price test in place 1 = Reg SHO Shrt Sale Price Test Restrictin in effect due t an intra-day price drp in security 2 = Reg SHO Shrt Sale Price Test Restrictin remains in effect Market Participant Psitin At the start f each trading day, NASDAQ disseminates a spin f market participant psitin messages. The message prvides the Primary Market Maker status, Market Maker mde and Market Participant state fr each NASDAQ market participant firm registered in an issue. Market participant firms may use these fields t cmply with certain marketplace rules. Thrughut the day, NASDAQ will send ut this message nly if NASDAQ Operatins changes the status f a market participant firm in an issue. PARTICIPANT POSITION SUMMARY Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the market participant psitin message was generated Message Type 8 1 P Stck Directry Message MPID 9 4 Alphabetic Dentes the market participant Versin /1/2013 Page 6

7 identifier fr which the psitin message is being generated Stck 13 8 Alphanumeric Dentes the security symbl fr which the psitin is being generated Primary Market Maker 21 1 Alphanumeric Indicates if the market participant firm qualifies as a Primary Market Maker in accrdance with NASDAQ marketplace rules Market Maker Mde Market Participant State Y = primary market maker N = nn-primary market maker 22 1 Alphanumeric Indicates the quting participant s registratin status in relatin t SEC Rules 101 and 104 f Regulatin M N = nrmal P = passive S = syndicate R = pre-syndicate L = penalty 23 1 Alphanumeric Indicates the market participant s current registratin status in the issue A = Active E = Excused/Withdrawn W = Withdrawn S = Suspended D = Deleted Versin /1/2013 Page 7

8 4.3 TtalView Price Level Update NASDAQ disseminates a price level message whenever the aggregated psitin at a price level changes. Price levels will be generated whenever an rder is entered, canceled r executed r when a qute is updated fr a certain price pint. When a firm receives the initial message fr a given price pint, it shuld add the price level t its display. When a firm receives subsequent messages fr a given price pint, it shuld update the display t reflect the update. When a firm sees the number f shares fall t zer, it shuld remve the price level frm display. PRICE LEVEL UPDATE Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the price level update was generated Message Type 8 1 U Participant Price Level Update Message Market Side 9 1 Alphabetic Dentes the side f the market assciated with the price level update B = bid update S = ffer/ask update Participant Shares 10 9 Numeric Reflects the current number f shares displayed by this participant at this price level Aggregate Shares 19 9 Numeric Reflects the ttal number f shares displayed in the NASDAQ executin system fr ALL participants at this price level Stck 28 8 Alphanumeric Dentes the security symbl fr which the price level is being generated Price Numeric/ Price Reflects the price assciated with the update. Refer t Data Types fr field prcessing ntes. MPID 46 4 Alphabetic Dentes the market participant identifier assciated with the price level update Versin /1/2013 Page 8

9 4.5 Net Order Imbalance Indicatr (NOII) NASDAQ disseminates NOII data at 5-secnd intervals in the minutes leading up t the NASDAQ Opening Crss, NASDAQ Clsing Crss, and NASDAQ IPO/Halt/Imbalance Crss. Fr the standard NASDAQ Opening Crss, NOII messages will be disseminated during the tw minutes leading up t the start f market hurs. Fr the NASDAQ Crss fr IPO and halted / paused securities, NOII messages will be disseminated during the qute nly perid. The first NOII message will be disseminated apprximately five secnds after the Stck Trading Actin message with the Q r R actin value is disseminated. Fr the NASDAQ Clsing Crss, NOII messages will be disseminated during the ten minutes leading up t the end f market hurs. NOII MESSAGE Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the NOII message was generated Message Type 8 1 I NOII Message Paired Shares Imbalance Shares Imbalance Directin 9 9 Numeric Indicates the ttal number f shares that are eligible t be matched at the Current Reference Price Numeric Number f shares nt paired at the Current Reference Price Alphabetic Indicates the market side f the imbalance B = buy imbalance S = sell imbalance N = n imbalance O = insufficient rders t calculate Stck 28 8 Alphanumeric Dentes the security symbl fr which the NOII message is being generated Far Price Numeric/ Price Near Price Numeric/ Price Current Reference Price Numeric/ Price A hypthetical auctin-clearing price fr crss rders nly. Refer t Appendix D fr prcessing ntes. A hypthetical auctin-clearing price fr crss rders as well as cntinuus rders. Indicates price at which the NOII shares are being calculated. Crss Type 66 1 Alphabetic Dentes the type f NASDAQ crss fr which the NOII message is being generated O = Open Crss C = Clse Crss H = Intra-day Opening Crss fr IPO and halted / paused securities Versin /1/2013 Page 9

10 Price Variatin Indicatr 67 1 Alphanumeric This field indicates the abslute value f the percentage f deviatin f the Near Indicative Clearing Price t the nearest Current Reference Price. L = Less than 1% 1 = 1 t 1.99% 2 = 2 t 2.99% 3 = 3 t 3.99% 4 = 4 t 4.99% 5 = 5 t 5.99% 6 = 6 t 6.99% 7 = 7 t 7.99% 8 = 8 t 8.99% 9 = 9 t 9.99% A = 10 t 19.99% B = 20 t 29.99% C = 30% r greater Space = Cannt be calculated 4.6 Retail Price Interest Indicatr (RPII) Identifies a retail interest indicatin f the Bid, Ask r bth the Bid and Ask fr NASDAQlisted securities. Retail Interest Message Name Offset Length Value Ntes Timestamp 0 8 Numeric Time at which the NOII message was generated Message 8 1 N Retail Interest message Type Stck 9 8 Alpha Dentes the security symbl fr the issue in the NASDAQ executin system. Refer t Appendix B fr stck symbl cnventin infrmatin. Interest Flag 17 1 Alpha B = RPI rders available n the buy side S = RPI rders available n the sell side A = RPI rders available n bth sides (buy and sell) N = N RPI rders available 5. Supprt Fr general prduct supprt fr NASDAQ OMX data feeds, please cntact NASDAQ OMX Glbal Data Prducts at r dataprducts@nasdaqmx.cm. Fr technical supprt fr NASDAQ OMX data feeds, please cntact NASDAQ OMX Glbal Sftware Develpment at devsupprt@nasdaqmx.cm. Versin /1/2013 Page 10

11 Appendix A Data Channel Assignment MldUDP Optin Only Fr initial implementatin f the TtalView Aggregated data feed, NASDAQ will disseminate the utbund messages via eight lgical channels. Price level, NOII and administrative messages will be split based n the initial letter f the stck symbl within the message. Each data channel will cntain the full range f exchange-listed (NASDAQ-, NYSE-, NYSE Amex-, NYSE Arca- and BATS-listed) security data. The symbl assignment will be: Data Feed Channel TtalView Aggregated #1 TtalView Aggregated #2 TtalView Aggregated #3 TtalView Aggregated #4 TtalView Aggregated #5 TtalView Aggregated #6 TtalView Aggregated #7 TtalView Aggregated #8 Symbl Alphabetic Range A B-C D-F G-K L-N O-Q R-S T-Z System event messages, hwever, will be disseminated acrss all data channels. Fr the MldUDP prtcl, the packet sequencing schema will be unique t each data channel. Fr the addressing infrmatin, please refer t the MldUDP Data Feed IP Addresses page f the NASDAQ OMX Trader website. Versin /1/2013 Page 11

12 Appendix B Stck Symbl Cnventin Fr NASDAQ-listed issues, NASDAQ OMX currently restricts its symbl length t a maximum f 8 characters. Fr cmmn stck issuances, NASDAQ, PSX and BX will nly assign rt symbls f 1 t 4 characters in length with pssible fifth and r sixth character denting a suffix. In certain instances, a dt. delimiter may be applied t symbls after the rt and between the suffix eg., XXXX.A. Fr subrdinate securities, NASDAQ and BX will assign a 5 character symbl fr which the last character relays infrmatin abut the issue class r issue type. Fr the current list f fifth and r six character symbl suffixes, please refer t Ticker Symbl Cnventin page n the NASDAQ OMX Trader website. Fr NYSE-, NYSE MKT- and NYSE Arca-listed securities with subrdinate issue types, please refer t Ticker Symbl Cnventin page n the NASDAQ OMX Trader website. Versin /1/2013 Page 12

13 Appendix C Trading Actin Reasn Cdes Fr NASDAQ-listed issues, NASDAQ acts as the primary market and has the authrity t institute a trading halt r trading pause in an issue due t news disseminatin r regulatry reasns. Fr CQS issues, NASDAQ abides by any regulatry trading halts and trading pauses instituted by the primary r listing market as apprpriate. Fr bth issue types, NASDAQ may als halt trading fr peratinal reasns. NASDAQ will send ut a trading actin message t infrm its market participants when the trading status f an issue changes. Fr infrmatinal purpses, NASDAQ als attempts t prvide the reasn fr each trading actin update. Fr bandwidth efficiency reasns, NASDAQ uses a 4-byte cde fr the reasn n its utbund data feeds. REASON CODES FOR TRADING HALT ACTIONS Cde Value T1 Halt News Pending T2 Halt News Disseminated T5 Single Security Trading Pause In Effect T6 Regulatry Halt Extrardinary Market Activity T8 Halt ETF T12 Trading Halted; Fr Infrmatin Requested by Listing Market H4 Halt Nn-Cmpliance H9 Halt Filings Nt Current H10 Halt SEC Trading Suspensin H11 Halt Regulatry Cncern O1 Operatins Halt; Cntact Market Operatins LUDP Vlatility Trading Pause LUDS Vlatility Trading Pause Straddle Cnditin MWC1 Market Wide Circuit Breaker Halt Level 1 MWC2 Market Wide Circuit Breaker Halt Level 2 MWC3 Market Wide Circuit Breaker Halt Level 3 MWC0 Market Wide Circuit Breaker Halt Carry ver frm previus day IPO1 IPO Issue Nt Yet Trading M1 Crprate Actin M2 Qutatin Nt Available Space Reasn Nt Available REASON CODES FOR QUOTATION/TRADING RESUMPTION ACTIONS Cde Value T3 News and Resumptin Times T7 Single Security Trading Pause / Qutatin Only Perid R4 Qualificatins Issues Reviewed/Reslved; Qutatins/Trading t Resume R9 Filing Requirements Satisfied/Reslved; Qutatins/Trading T Resume C3 Issuer News Nt Frthcming; Qutatins/Trading T Resume C4 Qualificatins Halt ended; Maintenance Requirements Met; Resume C9 Qualificatins Halt Cncluded; Filings Met; Qutes/Trades T Resume C11 Trade Halt Cncluded By Other Regulatry Auth.; Qutes/Trades Resume MWCQ Market Wide Circuit Breaker Resumptin R1 New Issue Available R2 Issue Available IPOQ IPO Security Released fr Qutatin (NASDAQ Securities Only) IPOE IPO Security Psitining Windw Extensin (NASDAQ Securities Only) Versin /1/2013 Page 13

14 Space Reasn Nt Available Appendix D Dcumentatin Revisin Cntrl Lg Nvember 1, 2013: TtalView-Aggregated Versin 1.10 Released a new versin f the TtalView- Aggregated dcumentatin t supprt details f expanded symblgy (Appendix B). March 9, 2013: TtalView-Aggregated Versin 1.10 Released a new versin f the TtalView- Aggregated dcumentatin t supprt the fllwing change: Added the fllwing Trading Actin Reasn Cde fr LULD t reflect when the Natinal Best Bid is belw the lwer price band and/r the Natinal Best Offer is abve than the upper price band and the NMS Stck is nt in a Limit State. LUDS - Vlatility Trading Pause Straddle Cnditin January 9, 2013: TtalView-Aggregated Versin 1.10 Released a new versin f the TtalView- Aggregated dcumentatin t supprt the fllwing changes: Added the fllwing Trading Actin Reasn Cde: MWC0 - Market Wide Circuit Breaker Halt Carry ver frm previus day Remved the Trading State, R, frm the Stck Trading Actin message. January 8, 2013: TtalView-Aggregated Versin 1.10 Released a new versin f the TtalView- Aggregated dcumentatin t supprt the fllwing changes: Mdified the Retail Price Interest Indicatr Message. Changed the message type frm G t N. Nvember 2, 2012: TtalView-Aggregated Versin 1.10 NASDAQ OMX released a new versin f the TtalView-Aggregated dcumentatin t supprt the fllwing changes: Added the P value t the Trading State in the Stck Trading Message. Mdified the values fr the Trading Actin Reasn Cdes. Added the fllwing cdes: LUDP - Vlatility Trading Pause MWC1 - Market Wide Circuit Breaker Halt Level 1 MWC2 - Market Wide Circuit Breaker Halt Level 2 MWC3 - Market Wide Circuit Breaker Halt Level 3 MWCQ - Market Wide Circuit Breaker Resumptin Remved the Trading Actin values related t the Vlatility Guard Prgram. Remved Trading State, V. Eliminated Trading Actin Reasn Cdes, V1 and V2. Added Retail Price Interest Indicatr Message Nvember 1, 2011: TtalView-Aggregated Versin 1.10 NASDAQ OMX updated the Market Categry message t include the cde Z fr BATSlisted securities. April 6, 2011: TtalView-Aggregated Versin 1.10 Versin /1/2013 Page 14

15 NASDAQ OMX added tw new Trading Actin Reasn cdes t Appendix C fr the NASDAQ Vlatility Guard pilt prgram. New Reasn cdes were V1 and V2. Nvember 11, 2010: TtalView-Aggregated Versin 1.10 NASDAQ OMX crrected a time stamp errr in the Stck Trading Actin message frmat. Nvember 4, 2010: TtalView-Aggregated Versin 1.10 NASDAQ OMX updated the Regulatin SHO message definitin t reflect the new SEC implementatin date. NASDAQ OMX als crrected a time stamp errr in the Stck Trading Actin message frmat. July 14, 2010: TtalView-Aggregated Versin 1.10 NASDAQ OMX added a new Regulatin SHO Shrt Sale Price Test Restricted Indicatr message frmat t be intrduced in the furth quarter f July 2, 2010: TtalView-Aggregated Versin 1.10 NASDAQ OMX added new Actin Trading cde(s) t the Stck Trading Actin message fr the NASDAQ Vlatility Guard trading pause. May 25, 2010: TtalView-Aggregated Versin 1.10 NASDAQ added tw new Trading Actin Reasn cde values (T5 and T7) fr single security trading pause situatins t Appendix C. January 26, 2010: TtalView Aggregated Versin 1.10 Released a new versin f the TtalView-Aggregated dcumentatin t supprt the fllwing changes: Increased length f the symbl field frm 6 characters t 8 characters in multiple message frmats in supprt f the equity symblgy initiative. Mdified the values fr the Market Catetgry field in Symbl Directry messages t delineate amng NYSE-, NYSE Amex- and NYSE Arca-listed issues. Added nte t Appendix B t reflect that NASDAQ OMX is reviewing its stck symbl cnventins t determine if changes are needed June 10, 2008: TtalView Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatins dcument t add new cdes fr emergency market cnditin (EMC) situatins.: Sectin 4.2 System Event Message. Added the fllwing three cdes fr EMC situatins. A = Emergency market cnditin halt R = Emergency market cnditin qute nly perid B = Emergency market cnditin resumptin April 30, 2007: TtalView Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatins dcument t reflect the fllwing changes: Sectin 4 Fr clarity reasns, the Data Type field was updated fr all frmats t delineate between alphabetic and alphanumeric fields. Versin /1/2013 Page 15

16 Sectin Within the Issue Directry message frmat, NASDAQ updated the cde list fr the Market Categry field t dente that space is an allwable value. The Market Categry field may be space filled if the security symbl is assciated with a test issue OR if NASDAQ Operatins adds a prductin issue t its nline systems intra-day. April 3, 2007: TtalView-Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatins dcument t reflect the fllwing changes: 2.0 Architecture and Appendix A - Data Channel Assignment. Updated dcument t clarify that nly the MldUDP data feed ptin is available in a split alphabet frmat. February 15, 2007: TtalView-Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatins dcument t reflect the fllwing changes: Stck Trading Actin. Updated dcument t reflect actual system prcessing rules fr pre-pening trading actin spin. Appendix B Stck Symbl Cnventin. Updated dcument t reflect the mst current URL links t NASDAQ symblgy matrices. Octber 16, 2006: TtalView-Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatin dcument t reflect the fllwing change: Market Participant Psitin message. Crrected MPID field size t 4 bytes. Octber 2, 2006: TtalView-Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatin dcument t reflect the fllwing change: Sectin 4.5 Net Order Imbalance Indicatr (NOII) message: NASDAQ crrected message ffset errr in the riginal dcumentatin. August 22, 2006: TtalView-Aggregated Versin 1.00 NASDAQ mdified the TtalView-Aggregated specificatin dcument t reflect the fllwing changes: Sectin 4.1 System Events: Updated the explanatins fr the O, Q, M and M events t mre accurately reflect the feed prcessing. Appendix B Stck Symbl Cnventin: Please cntact NASDAQ Systems Engineering via fr cnversin matrix. July 11, 2006: TtalView-Aggregated Versin 1.00 NASDAQ released the initial TtalView-Aggregated specificatin dcument t the public. Versin /1/2013 Page 16