Citadel Advisors’s Monarch ProCap Index ETF MPRO Stock Holding History
Bought
Maintained
Sold
Other funds holding MPRO
KWM
4A
WI
RA
CIA
MWM
AWM
Citadel Advisors's MPRO Position: Q2 2026 in Review
Citadel Advisors opened a new position in Monarch ProCap Index ETF (MPRO) in Q2 2026: 13,748 shares worth $449K. The stake represents ﹤0.01% of the portfolio and ranks #10135 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in MPRO as recently as Q3 2025.
Citadel Advisors first reported a position in MPRO in Q1 2021 and has held it in 11 quarters since. The position peaked at $689K in Q2 2025. 11 funds tracked by Wall St. Rank hold MPRO as of Q2 2026.
- Citadel Advisors held 13,748 shares of Monarch ProCap Index ETF worth $449K as of Q2 2026.
- Monarch ProCap Index ETF was a new Citadel Advisors position in Q2 2026.
- Monarch ProCap Index ETF made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #10135 holding.
- Citadel Advisors first reported a position in Monarch ProCap Index ETF in Q1 2021 and has held it in 11 quarters since.
- Citadel Advisors's Monarch ProCap Index ETF position peaked at $689K in Q2 2025.
- 11 funds tracked by Wall St. Rank held Monarch ProCap Index ETF as of Q2 2026.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.