<?xml version='1.0' encoding='UTF-8'?>
<heldOrderRoutingPublicReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="oh-20191231.xsd"><version>1.2</version><bd>Citadel Securities Institutional LLC</bd><year>2026</year><qtr>3</qtr><timestamp>2026-10-14T16:46:57Z</timestamp><rMonthly><year>2026</year><mon>7</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>9.56</ndoMarketPct><ndoMarketableLimitPct>4.58</ndoMarketableLimitPct><ndoNonmarketableLimitPct>34.01</ndoNonmarketableLimitPct><ndoOtherPct>51.83</ndoOtherPct><rVenues><rVenue><name>CDRG(EV/SRV)</name><mic>CDRG</mic><orderPct>100.00</orderPct><marketPct>100.00</marketPct><marketableLimitPct>100.00</marketableLimitPct><nonMarketableLimitPct>100.00</nonMarketableLimitPct><otherPct>100.00</otherPct><netPmtPaidRecvMarketOrdersUsd>-232790.70</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3471</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-396125.30</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.4540</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-139122.01</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.2609</netPmtPaidRecvNonMarketableLimitOrdersCph><netPmtPaidRecvOtherOrdersUsd>0.00</netPmtPaidRecvOtherOrdersUsd><netPmtPaidRecvOtherOrdersCph>0.0000</netPmtPaidRecvOtherOrdersCph><materialAspects>
    Citadel Securities LLC (CDRG/CTDL)
    Citadel Securities Institutional LLC (“CSIN”) routes all of its customer orders, including reportable orders in NMS Securities under SEC Rule 606(a), to its affiliated broker-dealer, Citadel Securities LLC (“CSEC”).
    CSIN does not otherwise route customer orders to, or seek to effect customer transactions through, any market center or broker-dealer other than CSEC.  CSIN operates pursuant to a revenue sharing agreement with CSEC
    in which CSIN transmits 100% of the commissions it receives from customer orders to CSEC, and CSEC in turn pays CSIN an amount equal to CSIN’s trading and operating costs + 10%.

    Arrangements that may influence CSIN’s order routing decision:
    1.	Incentives for equaling or exceeding an agreed upon order flow volume threshold, such as additional payments or a higher rate of payment.
    N/A
    2.	Disincentives for failing to meet an agreed upon minimum order flow threshold, such as lower payments or the requirement to pay a fee.
    N/A
    3.	Volume-based tiered payment schedules.
    N/A
    4.	Agreements regarding the minimum amount of order flow that the broker-dealer would send to a venue.
    N/A
        </materialAspects></rVenue></rVenues></rOptions></rMonthly><rMonthly><year>2026</year><mon>8</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>9.08</ndoMarketPct><ndoMarketableLimitPct>5.51</ndoMarketableLimitPct><ndoNonmarketableLimitPct>39.17</ndoNonmarketableLimitPct><ndoOtherPct>46.22</ndoOtherPct><rVenues><rVenue><name>CDRG(EV/SRV)</name><mic>CDRG</mic><orderPct>100.00</orderPct><marketPct>100.00</marketPct><marketableLimitPct>100.00</marketableLimitPct><nonMarketableLimitPct>100.00</nonMarketableLimitPct><otherPct>100.00</otherPct><netPmtPaidRecvMarketOrdersUsd>-217439.70</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3979</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-425627.46</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.4630</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-160153.08</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.2707</netPmtPaidRecvNonMarketableLimitOrdersCph><netPmtPaidRecvOtherOrdersUsd>0.00</netPmtPaidRecvOtherOrdersUsd><netPmtPaidRecvOtherOrdersCph>0.0000</netPmtPaidRecvOtherOrdersCph><materialAspects>
    Citadel Securities LLC (CDRG/CTDL)
    Citadel Securities Institutional LLC (“CSIN”) routes all of its customer orders, including reportable orders in NMS Securities under SEC Rule 606(a), to its affiliated broker-dealer, Citadel Securities LLC (“CSEC”).
    CSIN does not otherwise route customer orders to, or seek to effect customer transactions through, any market center or broker-dealer other than CSEC.  CSIN operates pursuant to a revenue sharing agreement with CSEC
    in which CSIN transmits 100% of the commissions it receives from customer orders to CSEC, and CSEC in turn pays CSIN an amount equal to CSIN’s trading and operating costs + 10%.

    Arrangements that may influence CSIN’s order routing decision:
    1.	Incentives for equaling or exceeding an agreed upon order flow volume threshold, such as additional payments or a higher rate of payment.
    N/A
    2.	Disincentives for failing to meet an agreed upon minimum order flow threshold, such as lower payments or the requirement to pay a fee.
    N/A
    3.	Volume-based tiered payment schedules.
    N/A
    4.	Agreements regarding the minimum amount of order flow that the broker-dealer would send to a venue.
    N/A
        </materialAspects></rVenue></rVenues></rOptions></rMonthly><rMonthly><year>2026</year><mon>9</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>9.17</ndoMarketPct><ndoMarketableLimitPct>8.62</ndoMarketableLimitPct><ndoNonmarketableLimitPct>39.75</ndoNonmarketableLimitPct><ndoOtherPct>42.44</ndoOtherPct><rVenues><rVenue><name>CDRG(EV/SRV)</name><mic>CDRG</mic><orderPct>100.00</orderPct><marketPct>100.00</marketPct><marketableLimitPct>100.00</marketableLimitPct><nonMarketableLimitPct>100.00</nonMarketableLimitPct><otherPct>100.00</otherPct><netPmtPaidRecvMarketOrdersUsd>-222023.61</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3612</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-530986.41</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.3731</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-224460.03</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.2814</netPmtPaidRecvNonMarketableLimitOrdersCph><netPmtPaidRecvOtherOrdersUsd>0.00</netPmtPaidRecvOtherOrdersUsd><netPmtPaidRecvOtherOrdersCph>0.0000</netPmtPaidRecvOtherOrdersCph><materialAspects>
    Citadel Securities LLC (CDRG/CTDL)
    Citadel Securities Institutional LLC (“CSIN”) routes all of its customer orders, including reportable orders in NMS Securities under SEC Rule 606(a), to its affiliated broker-dealer, Citadel Securities LLC (“CSEC”).
    CSIN does not otherwise route customer orders to, or seek to effect customer transactions through, any market center or broker-dealer other than CSEC.  CSIN operates pursuant to a revenue sharing agreement with CSEC
    in which CSIN transmits 100% of the commissions it receives from customer orders to CSEC, and CSEC in turn pays CSIN an amount equal to CSIN’s trading and operating costs + 10%.

    Arrangements that may influence CSIN’s order routing decision:
    1.	Incentives for equaling or exceeding an agreed upon order flow volume threshold, such as additional payments or a higher rate of payment.
    N/A
    2.	Disincentives for failing to meet an agreed upon minimum order flow threshold, such as lower payments or the requirement to pay a fee.
    N/A
    3.	Volume-based tiered payment schedules.
    N/A
    4.	Agreements regarding the minimum amount of order flow that the broker-dealer would send to a venue.
    N/A
        </materialAspects></rVenue></rVenues></rOptions></rMonthly></heldOrderRoutingPublicReport>