MKTX holders · CITADEL ADVISORS LLC 13F · MKTX stock

CITADEL ADVISORS LLC MarketAxess Holdings Inc (MKTX) 13F holding

CITADEL ADVISORS LLC reported 75,794 MKTX shares valued at $12.50B as of 2026-03-31 (COM). Cached 13F row, not a live tape.

Cached MKTX reports from CITADEL ADVISORS LLC
ReportSharesValueClass
2026-03-3175,794$12.50BCOM
2026-03-3121,000$3.46BPut
2026-03-3119,500$3.22BCall
2026-03-316,365$1.05BCOM
2025-12-31399,640$72.43BCOM
2025-12-31225,568$40.88BCOM
2025-12-3137,100$6.72BPut
2025-12-3133,200$6.02BCall
2025-09-30285,273$49.71BCOM
2025-09-3069,500$12.11BCall
2025-09-3027,100$4.72BPut
2025-09-3024,813$4.32BCOM
2025-06-30274,123$61.22BCOM
2025-06-3077,043$17.21BCOM
2025-06-3058,500$13.07BCall
2025-06-304,200$938.0MPut
2025-06-30900$201.0MPut
2025-06-30600$134.0MCall

Not investment advice. Cached 13F row, not EDGAR XML.