<?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>2</qtr><timestamp>2026-07-20T13:33:50Z</timestamp><rMonthly><year>2026</year><mon>4</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>11.06</ndoMarketPct><ndoMarketableLimitPct>6.87</ndoMarketableLimitPct><ndoNonmarketableLimitPct>40.12</ndoNonmarketableLimitPct><ndoOtherPct>41.92</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>-152962.65</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3085</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-778351.40</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.5205</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-213721.93</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.3120</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>5</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>9.94</ndoMarketPct><ndoMarketableLimitPct>7.53</ndoMarketableLimitPct><ndoNonmarketableLimitPct>41.01</ndoNonmarketableLimitPct><ndoOtherPct>41.49</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>-174939.65</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3855</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-529123.88</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.4636</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-218921.38</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.2879</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>6</mon><rOptions><ndoPct>100.00</ndoPct><ndoMarketPct>9.86</ndoMarketPct><ndoMarketableLimitPct>6.54</ndoMarketableLimitPct><ndoNonmarketableLimitPct>39.04</ndoNonmarketableLimitPct><ndoOtherPct>44.54</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>-166119.15</netPmtPaidRecvMarketOrdersUsd><netPmtPaidRecvMarketOrdersCph>-0.3020</netPmtPaidRecvMarketOrdersCph><netPmtPaidRecvMarketableLimitOrdersUsd>-442010.28</netPmtPaidRecvMarketableLimitOrdersUsd><netPmtPaidRecvMarketableLimitOrdersCph>-0.4218</netPmtPaidRecvMarketableLimitOrdersCph><netPmtPaidRecvNonMarketableLimitOrdersUsd>-178510.61</netPmtPaidRecvNonMarketableLimitOrdersUsd><netPmtPaidRecvNonMarketableLimitOrdersCph>-0.2607</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>