JMST holdings

Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 6.84% at a quoted market price (level 1), 3 issuer countries, 1.63% restricted securities.

The largest line in JMST's filing is not a stock but JPMorgan Institutional Tax Free Money Market Fund, Class IM, a short-term position at 7.09% of net assets. Ten companies are 13.59% of the fund; the other 1,882 share the rest. Among the 192 bond funds measured here, JMST behaves like 138.5 holdings against a median of 236.4 — 1.7 times more concentrated than the median. Across 27 quarterly filings JMST has held roughly steady since 2019-11-30 (128.4 then, 138.5 now). Between the 2026-02-28 and 2026-05-31 filings 483 positions were added and 164 dropped; 20.2% of the weight moved.

Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable bond funds on this site. Nothing here is a view on the fund.

Between 2019-11-30 and 2026-05-31, JMST went from behaving like 128.4 equally weighted positions to 138.5 — 8% more, while its top ten went from 18.69% to 13.59% of net assets. Read across the funds on the concentration-over-time table.

One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.

The 15 largest of 1,892 positions in JMST's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: listed with the point-in-time files, available on request.

Share of JMST's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.

Monthly total returns from Item B.5 of JMST's own filings, 81 months on record. Not computed here and not from a price feed.

Cross-checked against a series computed separately from prices: median difference 0.04 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: JMST.json · all funds.

1,573 positions became 1,892: 483 added (18.6% of the fund at the later date), 164 dropped (7.3% at the earlier date). Half the sum of all weight changes, a turnover proxy: 20.2%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of JMST compared this way, as a feed: changes.xml · all funds: filings received.

New: Bergen County Improvement Authority (The) (0.65%), District of Columbia (0.64%), Jersey City Municipal Utilities Authority (0.55%), Borough of Carteret NJ (0.51%), City of Albany NY (0.49%), Bristol Warren Regional School District (0.46%). Gone: Triborough Bridge & Tunnel Authority (0.78%), City of Albany NY (0.49%), Monmouth County Improvement Authority (The) (0.40%), Bergen County Improvement Authority (The) (0.38%), Town of Westford MA (0.29%), Township of Manchester NJ (0.28%).

69.87% debt, 30.12% short-term investment as filed; 6.8% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.

A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $6.36B. Notional of an interest-rate or currency swap is not equity exposure.

Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).

Every measured debt fund lined up by how many holdings it behaves like; these sit either side of JMST (138.5). Same filings, same arithmetic. Position in this list says nothing about which fund is better.