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PMMF

GradeBNew York Stock Exchange

iShares Prime Money Market ETF

Treasury & Government Bond · IShares · Inception 2025-02-03 · SEC filings

$100.25−0.06 (−0.06%)

As of Sep 23, 2026, 2:18 PM EDT

History starts Feb 5, 2025.
Intraday session: down, 44 prints from 100.31 to 100.25. Range 100.24 to 100.25. Use the arrow keys to read each point.$100.24$100.2510 AM12 PM2 PM4 PM
Expense ratio
0.20%
Fund size
$748M
1Y return
+2.6%
Yield · Last 12 months
3.83%
Volume · 30D
0.1M sh
NAV per share
$100.30
52W range
low $100.10high $100.57

The ETF.net PMMF Grade

B

63/ 100

Rank 36 of 78 in Cash & Ultra-Short Income⁠

Confidence High

Six-pillar profile for PMMF. Scores out of 100: Cost 41, Risk 49, Mission 100, Tradability 71, Holdings 47, Durability 65. Strongest: Mission (100). Weakest: Cost (41). Leans toward Mission.
F< 25
D≥ 25
C≥ 40
B≥ 55
A≥ 70

Score 63 of 100 sits in the B band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E.

  • Cost

    What you pay to own it — the expense ratio plus trading frictions, ranked within its category.
    CScore 41
    Category rank47/78 · mid-pack

  • Mission

    How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.
    AScore 100
    Category rank32/64 · top 50%

  • Risk

    How violently it can move — volatility, drawdown depth, and downside capture versus its category.
    CScore 49
    Category rank43/75 · mid-pack

  • Tradability

    How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.
    AScore 71
    Category rank18/78 · top 23%

  • Holdings

    What it actually owns — the quality, breadth, and concentration of the underlying portfolio.
    CScore 47
    Category rank51/77 · mid-pack

  • Durability

    Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.
    BScore 65
    Category rank28/78 · top 36%

Graded as of Sep 22, 2026

Our read on PMMF

ETF.net Research

BMoney market discipline in an ETF shell. PMMF runs a short-term credit portfolio under the SEC's strict Rule 2a-7 money fund rules, pays income monthly, and trades on an exchange during the day.

Stated mandate

The fund seeks current income consistent with liquidity and principal stability while providing intraday trading flexibility.

Why people hold it

  1. 01Held to Rule 2a-7, the SEC's money market rulebook, for credit quality, maturity and liquidity, with daily portfolio disclosure.blackrock.com
  2. 02Prime, not government-only. It buys short-term corporate credit instead of sticking to Treasury and agency paper, spread across roughly 120 positions.blackrock.com
  3. 03What it holds lines up with what it promises: current income with liquidity and principal stability, plus intraday trading. Monthly distributions.
  4. 04The 0.20% fee sits right at the median for cash-alternative funds, so the ETF wrapper doesn't carry a novelty premium.

Worth knowing

  1. 01Cheaper parking spots exist: ICSH at 0.08% and JPST at 0.18%. Both are ultra-short bond funds, though, not 2a-7 money market funds.
  2. 02Shares change hands at a market price driven by supply and demand as well as NAV, which is a different experience from a traditional money fund account.dividend.com
  3. 03Prime paper carries issuer credit risk that Treasury-only cash funds sidestep. Launched in 2025, so its record is still short.blackrock.com

PMMF Holdings

As of Sep 22, 2026, 3:14 AM
Asset class
Other
Holdings
—
Top-10 weight
47%
Largest holding
TRI-PARTY J.P. MORGAN SECURITIES L15.5%

Geography

  • United States100.00%
The fund’s holdings, weight-ordered — page 1 of 17.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001—TRI-PARTY J.P. MORGAN SECURITIES L15.52%116,055,000$116M1
002—TRI-PARTY BNP PARIBAS10.56%79,000,000$79M2
003—TRI-PARTY WELLS FARGO SECURITIES L6.58%49,250,000$49M2
004—TRI-PARTY BOFA SECURITIES INC.5.15%38,500,000$39M2
005—TRI-PARTY GOLDMAN SACHS & CO. LLC5.15%38,500,000$39M2
006—USD CASH1.07%7,984,094$8M193
007—IONIC FUNDING LLC SERIES II CLASS0.67%5,000,000$5M1
008—VERTO CAPITAL I 144A0.67%5,000,000$5M1
009—HQLA FUNDING LLC 144A0.67%5,000,000$5M1
010—WASHINGTON MORGAN CAP 144A0.54%4,000,000$4M1
011—NATIONAL BANK OF KUWAIT (NEW YORK0.54%4,000,000$4M1
012—CHESHAM FIN LTD / CHESHAM FIN LLC 144A0.53%4,000,000$4M1
013—CHESHAM FIN LTD / CHESHAM FIN LLC 144A0.53%4,000,000$4M1
014—OVERWATCH ALPHA FUNDING 144A0.53%4,000,000$4M1
015—AQUITAINE FUNDING COMPANY LLC 144A0.53%4,000,000$4M1

Showing 1–15 of 245 holdings

PMMF Performance

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

PMMF$10,263
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$11,723
Sep 22, 2025 to Sep 22, 2026. PMMF $10,263. SPY $11,723. Use the arrow keys to read each point.$9,635$10,777$11,919Sep 2025Mar 2026Sep 2026

Sep 22, 2025 – Sep 22, 2026

Returns run to the Sep 22, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for PMMF. Periods over one year show the average yearly return.
PeriodPMMF
Year to date+1.5%
1 month+0.3%
3 monthsHistory unavailable—
1 year+2.6%
3 yearsFund is under 3 years old—per year
5 yearsFund is under 5 years old—per year
10 yearsFund is under 10 years old—per year

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for PMMF
YearReturn barPMMF
2026 YTD+1.5%
2025+3.8%

History from Feb 5, 2025

PMMF in the news

ETF.net Research hasn’t filed on PMMF yet — coverage lands here as it’s written.

PMMF Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Sep 22, 2026.
3.83%Last 12 months
Payout per share
$3.84Last 12 months
Last payment
$0.07 per share
Paid on
Shares bought on or after this date do not qualify for this distribution.
Frequency
Weekly

Distribution history

2026

One bar per payment. 27 payments in 2026 YTD. Feb 2, 2026 $0.30; Mar 2, 2026 $0.29; Apr 1, 2026 $0.28; Apr 8, 2026 $0.06; Apr 15, 2026 $0.07; Apr 22, 2026 $0.07; Apr 29, 2026 $0.07; May 6, 2026 $0.07; May 13, 2026 $0.07; May 20, 2026 $0.07; May 27, 2026 $0.07; Jun 3, 2026 $0.07; Jun 10, 2026 $0.07; Jun 17, 2026 $0.07; Jun 24, 2026 $0.07; Jul 1, 2026 $0.07; Jul 8, 2026 $0.07; Jul 15, 2026 $0.07; Jul 22, 2026 $0.07; Jul 29, 2026 $0.07; Aug 3, 2026 $0.07; Aug 12, 2026 $0.07; Aug 19, 2026 $0.07; Aug 26, 2026 $0.07; Sep 2, 2026 $0.07; Sep 9, 2026 $0.07; Sep 16, 2026 $0.07. Use the arrow keys to read each point.2026YTD
Ex-datePay dateAmount per share
Sep 16, 2026Sep 17, 2026$0.07
Sep 9, 2026Sep 10, 2026$0.07
Sep 2, 2026Sep 3, 2026$0.07
Aug 26, 2026Aug 27, 2026$0.07
Aug 19, 2026Aug 20, 2026$0.07
Aug 12, 2026Aug 13, 2026$0.07
Aug 3, 2026Aug 6, 2026$0.07
Jul 29, 2026Jul 30, 2026$0.07
Jul 22, 2026Jul 23, 2026$0.07
Jul 15, 2026Jul 16, 2026$0.07
Jul 8, 2026Jul 9, 2026$0.07
Jul 1, 2026Jul 2, 2026$0.07

PMMF Risk

How much the fund’s monthly returns vary, scaled to a year.
0.2%
Annualised · 15 months to Aug 2026
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
−0.89
vs 3-month T-bills · 15 months to Aug 2026
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
−0.1%
16 months · trough Apr 2025
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
−0.01
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

PMMF Cost

Expense ratio0.20%
  • The middle half of Cash & Ultra-Short Income funds
  • Median 0.19%

40 of the 77 Cash & Ultra-Short Income funds charge less.

PMMF costs $20.00 a year on $10,000. The median Cash & Ultra-Short Income fund costs $19.00.