Joel Greenblatt’s iShares MBS ETF MBB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$1.34M Hold
14,226
﹤0.01% 1272
2026
Q1
$1.35M Hold
14,226
﹤0.01% 1222
2025
Q4
$1.35M Buy
14,226
+2,152
+18% +$205K ﹤0.01% 1159
2025
Q3
$1.15M Hold
12,074
0.01% 1155
2025
Q2
$1.13M Hold
12,074
0.01% 1109
2025
Q1
$1.13M Buy
12,074
+4,292
+55% +$397K 0.01% 968
2024
Q4
$713K Buy
+7,782
New +$725K 0.01% 1021

Other funds holding MBB

Joel Greenblatt's MBB Position: Q2 2026 in Review

Joel Greenblatt held its iShares MBS ETF (MBB) position steady in Q2 2026 at 14,226 shares worth $1.34M. The position accounts for ﹤0.01% of the portfolio, ranked #1272.

Joel Greenblatt first reported a position in MBB in Q4 2024 and has held it in 7 quarters since. The position peaked at $1.35M in Q4 2025. 1,021 funds tracked by Wall St. Rank hold MBB as of Q2 2026.

  • Joel Greenblatt held 14,226 shares of iShares MBS ETF worth $1.34M as of Q2 2026.
  • Joel Greenblatt left its iShares MBS ETF share count unchanged in Q2 2026.
  • iShares MBS ETF made up ﹤0.01% of Joel Greenblatt's portfolio in Q2 2026, its #1272 holding.
  • Joel Greenblatt first reported a position in iShares MBS ETF in Q4 2024 and has held it in 7 quarters since.
  • Joel Greenblatt's iShares MBS ETF position peaked at $1.35M in Q4 2025.
  • 1,021 funds tracked by Wall St. Rank held iShares MBS ETF as of Q2 2026.

Based on Gotham Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.