GNMA bid-ask spread and liquidity

iShares GNMA Bond ETF
BondsiShares$428m net assets0.10% fee
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As of Oct 22, 2026, GNMA closed −0.16% from its NAV, and on 95% of the 251 days to then it was within ±0.34%.

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Ask IQ about GNMA bid-ask spread and liquidity

Answers cite the figures on this page.

OverviewHoldingsDividendsTradingFlowsCompare

IQ Liquidity Score

3 of 6 measured · Oct 22, 2026
·
Not scored
0 · Hard to trade100 · Trades like a giant

The IQ Liquidity Score: a fixed 0 to 100 scale of trading conditions, the same anchors for every fund; 100 is the easiest to trade. It measures how cheaply and reliably the fund trades, not whether to own it. Method →

Cost to trade
Not measured · the issuer's 30-day median spread is not read for this fund
·
Capacity
Not measured · its holdings are bonds, which have no volume source here
·
Price fidelity
95% of days within ±0.34% of NAV, 251 days to Oct 22, 2026
84.3
Primary market
3 active dealers of 39; largest 53% of creations and redemptions, N-CEN to Oct 31, 2025
65.0
Bad-day behaviour
Premium 0.7176× normal on the 10 worst S&P 500 days, to Oct 22, 2026
100.0
Depth
Not measured · needs trade and quote data (Phase 2)
·

Premium or discount to value

Daily, 251 days to Oct 22, 2026 · the ±1% band marked
GNMA premium or discount to NAV, 251 days+1%0−1%Oct 23, 2025Oct 22, 2026
Latest close, Oct 22
−0.16%
95% of days within
±0.34%
Days more than 1% from NAV
0 of 251
Widest
−0.48%, Oct 8, 2026

Close against the NAV its issuer struck the same day, from the issuer. Source: ETFIQ.

Capacity

What the holdings can absorb a day

Not measured: its holdings are bonds, which have no volume source here.

Dealers

Authorized participants · N-CEN, the year to Oct 31, 2025
Active dealers
3
of 39 authorized
Largest
53%
of creations and redemptions
One dealer
No
3 active

3 of 39 authorized participants created or redeemed GNMA shares in the year to Oct 31, 2025. From the fund’s Form N-CEN, filed Jan 14, 2026.

The active authorized participants, largest first, by share of the dollars created and redeemed: Jane Street Capital, LLC (53.1%), BofA Securities, Inc. (45.0%), Goldman Sachs & Co. LLC (1.9%). 36 more were listed and created or redeemed nothing.

Creations and redemptions

By week, 52 weeks to Oct 22, 2026
Oct 27 2025Each week’s net creations (green) and redemptionsOct 22 2026

$101m net created in 20 weeks and $24m net redeemed in 3, over the 52 weeks from Oct 27, 2025 to Oct 22, 2026, from the change in its shares outstanding.

How to trade GNMA

To buy or to sell, up to $100,000
When
ETF spreads are usually widest in the first minutes after the open and the last before the close.
Watch
The premium. On 95% of days it is within ±0.34%; beyond that a buyer pays more, and a seller gets less, than the holdings are worth.
Phase 2 · drawn now, filled when trade data arrives
Spread through the dayComing with trade data

Median spread by half hour, 30 days.

Buyers against sellersComing with trade data

Share of volume at the ask against at the bid.

Retail flow, estimatedComing with trade data

Sub-penny prints as a share of volume.

Large tradesComing with trade data

Prints above $500k, count and share.

Closing auctionComing with trade data

Share of the day’s volume at the close.

Questions people ask

Does GNMA trade at a premium or discount to NAV?

It closed −0.16% from its NAV on Oct 22, 2026. On 95% of the 251 days to then it was within ±0.34%, and it closed more than 1% from NAV on 0 of them.

Who is the AP for GNMA?

GNMA’s latest Form N-CEN, for the period ending Oct 31, 2025, lists 39 authorized participants (APs), and 3 created or redeemed shares. The largest were Jane Street Capital, LLC (53.1%), BofA Securities, Inc. (45.0%), Goldman Sachs & Co. LLC (1.9%) of the dollars its APs created and redeemed.

Who is the LMM for GNMA?

GNMA’s lead market maker (LMM) on Nasdaq is Virtu Americas LLC. Lead market maker per Nasdaq, as of Oct 23, 2026.
Sources and dates
Premium to NAVETFIQ, close against the issuer’s NAV · Oct 23, 2025 to Oct 22, 2026
DealersForm N-CEN · the year to Oct 31, 2025
Creations and redemptionsShares outstanding, daily, from the issuer
Where to next
ETF trading costs and liquidity→Cost-to-trade checker→Why low volume does not mean illiquidguide →Limit orders vs market orders for ETFsguide →How the IQ Liquidity Score is builtmethod →GNMA fund page→
Cite this pageCitation, APA and Markdown

ETFIQ, GNMA trading: cost, capacity, premium and dealers, data as of Oct 22, 2026. https://etfiq.com/funds/gnma/trading/

Open data →

The score measures trading conditions, not the fund. ETFIQ makes no recommendations.