Ss Spdr P Mort Back Bond ETF
$21.99-0.3%
+$137.5M
Net Activity
-1.62% total shares
Institutions Holding
257
Popularity Rank
#2430
Avg Weight
0.40%
Total Value
$6.3B
257 institutions currently hold SPMB, with 138 net buyers and 110 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
110
Net Buying Institutions
138
Top 5 by Value
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Across its top 20 institutional holders, SPMB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 7/100, avg. turnover score 22/100).
SPMB ranks #2430 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
SPMB is a top-conviction position for Financial Life Advisors — at 8.3% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in SPMB belongs to Financial Engines Advisors L.L.C., but the position matters far more to Financial Life Advisors, who has 8.3% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Gladstone Institutional Advisory LLC has added to its SPMB position for two straight quarters, increasing it by $16.4M to reach $19.7M today.
Hirtle & Co., LLC has trimmed its SPMB position for two straight quarters, cutting it by $28.5M while still holding $2.6M.
SPMB is down 0.3% today, but institutions show net buying of $137.5M this quarter — a divergence between today's price move and the underlying institutional flow.
+$393.4M
Total Buy Value
$379.3M
Total Sell Value
138
Net Buyers
110
Net Sellers
SPMB
Q2 2026
Top 5 Institutional Movers
+$176.1M
-$140.9M
-$44.6M
+$40.6M
-$36.5M
SPMB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
No Schedule 13D/13G filings for this ticker
No Form 8-K filings for this ticker
78464A383
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,239
Total reported value
$2.2T
3224 13F institutions increased their position this quarter
Institutions Holding
5,987
Total reported value
$3.6T
3028 13F institutions increased their position this quarter
Institutions Holding
6,149
Total reported value
$1.8T
2966 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
5,142
Total reported value
$670.7B
Held by 5142 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
5,071
Total reported value
$1.1T
Held by 5071 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,921
Total reported value
$485.0B
Held by 4921 institutions — one of the most-tracked stocks on AlphaSMO
Access SPMB's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/SPMBCLI
npx alphasmo stocks get SPMB