Jane Street’s AMG GW&K Muni Income ETF MUNX Stock Holding History

Jane Street’s Portfolio MUNX Stock Details MUNX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	–	Sell	-8,914	Closed	-$225K	–	13591
2026 Q2	$225K	Sell	8,914 -19,022	-68%	-$476K	﹤0.01%	9860
2026 Q1	$692K	Buy	27,936 +7,395	+36%	+$186K	﹤0.01%	7291
2025 Q4	$513K	Buy	+20,541	New	+$513K	﹤0.01%	7630

Other funds holding MUNX

Cerity Partners New York $87.3B AUM 22.01% 1-Year Est. Return

Family Office Research Bethesda, Maryland $260M AUM 20.53% 1-Year Est. Return

Jane Street's MUNX Position: Q3 2026 in Review

Jane Street sold out of AMG GW&K Muni Income ETF (MUNX) in Q3 2026, closing a stake of 8,914 shares — an estimated $225K sold.

Jane Street first reported a position in MUNX in Q4 2025 and held it in 3 quarters. The position peaked at $692K in Q1 2026. 2 funds tracked by Wall St. Rank hold MUNX as of Q3 2026.

Jane Street reported no remaining AMG GW&K Muni Income ETF position as of Q3 2026 after selling out during the quarter.
Jane Street sold 8,914 AMG GW&K Muni Income ETF shares in Q3 2026, an estimated $225K.
Jane Street first reported a position in AMG GW&K Muni Income ETF in Q4 2025 and held it in 3 quarters.
Jane Street's AMG GW&K Muni Income ETF position peaked at $692K in Q1 2026.
2 funds tracked by Wall St. Rank held AMG GW&K Muni Income ETF as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.