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BXMX

Nuveen S&P 500 BuyWrite Income Fund
$13.26 -0.28 (-2.07%) At close · Mar 27
Market Cap
$1.38B
Shares
104,165,286

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 6
Total Value: $292,740
Total Shares: 22,077

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 6 13F filers · Δ vs Dec 31, 2025
Top Holder
85.8%
Jun 2023 → Mar 2026 · range 34.5% – 85.8%
+49.1 pts
Top 5
100.0%
Jun 2023 → Mar 2026 · range 54.9% – 100.0%
+44.0 pts
Top 10
100.0%
Jun 2023 → Mar 2026 · range 67.8% – 100.0%
+28.8 pts
HHI
7,466
Jun 2023 → Mar 2026 · range 1,362 – 7,466
Highly concentrated+5,953

Quarterly Activity

vs Dec 31, 2025
New
1
Increased
0
Decreased
2
Sold Out
173
Unchanged
3
Holder count: -172
Institutional value: -99.9%
Shares held: -99.9%

Top Buyers

vs Dec 31, 2025
No qualifying movers this quarter.

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 6 of 6
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1298699 CUSIP 6706ER101 Visit website