OIH bid-ask spread and liquidity

VanEck Oil Services ETF
StocksVanEck$1.8bn net assets0.35% fee
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As of Oct 22, 2026, OIH closed −0.07% from its NAV, and on 95% of the 12 days to then it was within ±0.13%.

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Ask IQ about OIH bid-ask spread and liquidity

Answers cite the figures on this page.

OverviewHoldingsDividendsTradingFlowsCompare

IQ Liquidity Score

1 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
Holdings can absorb up to $103m a day; part of the book has no volume figure
·
Price fidelity
Not measured · 12 days of closing premium are held, under the 20 needed
·
Primary market
13 active dealers of 39; largest 13% of creations and redemptions, N-CEN to Dec 31, 2025
100.0
Bad-day behaviour
Not measured · 0 of the 10 worst days and 12 other days are held, under the 5 and 60 needed
·
Depth
Not measured · needs trade and quote data (Phase 2)
·

Premium or discount to value

Daily, 12 days to Oct 22, 2026 · the ±1% band marked
OIH premium or discount to NAV, 12 days+1%0−1%Oct 2, 2026Oct 22, 2026
Latest close, Oct 22
−0.07%
95% of days within
±0.13%
Days more than 1% from NAV
0 of 12
Widest
−0.13%, Oct 16, 2026

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

Capacity

What the holdings can absorb a day, at 10% of each one’s volume
Holdings can absorb, at most
$103m

OIH’s holdings can absorb up to $103m a day, measured on its own holdings, as of Oct 22, 2026. Part of its book has no volume figure, so this is an upper bound.

The holding that sets the limit: Cactus Inc (WHD), 3.43% of the fund, $36m a day traded, the median of 20 days to Oct 22, 2026. Capacity is the least of the holding-level ratios over the holdings making up 95% of the weight.

Dealers

Authorized participants · N-CEN, the year to Dec 31, 2025
Active dealers
13
of 39 authorized
Largest
13%
of creations and redemptions
One dealer
No
13 active

13 of 39 authorized participants created or redeemed OIH shares in the year to Dec 31, 2025. From the fund’s Form N-CEN, filed Mar 13, 2026.

The active authorized participants, largest first, by share of the dollars created and redeemed: Morgan Stanley & Co. LLC (13.0%), Goldman Sachs & Co. LLC (11.8%), Merrill Lynch Professional Clearing Corp. (11.4%), ABN AMRO Clearing USA LLC (10.4%), Virtu Americas LLC (9.3%), Jane Street Capital, LLC (9.3%), BNP Paribas Prime Brokerage, Inc. (8.8%), RBC Capital Markets, LLC (7.2%), Citigroup Global Markets Inc. (6.4%), J.P. Morgan Securities LLC (5.6%), Wells Fargo Securities, LLC (4.2%), Citadel Securities LLC (1.5%), UBS Securities LLC (1.1%). 26 more were listed and created or redeemed nothing.

How to trade OIH

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.
Size
Part of its book has no volume figure, so the room for a large order is an upper bound.
Watch
The premium. On 95% of days it is within ±0.13%; 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 OIH trade at a premium or discount to NAV?

It closed −0.07% from its NAV on Oct 22, 2026. On 95% of the 12 days to then it was within ±0.13%, and it closed more than 1% from NAV on 0 of them.

Who is the AP for OIH?

OIH’s latest Form N-CEN, for the period ending Dec 31, 2025, lists 39 authorized participants (APs), and 13 created or redeemed shares. The largest were Morgan Stanley & Co. LLC (13.0%), Goldman Sachs & Co. LLC (11.8%), Merrill Lynch Professional Clearing Corp. (11.4%) of the dollars its APs created and redeemed.

Who is the LMM for OIH?

OIH’s lead market maker (LMM) on NYSE Arca is Virtu Americas LLC. Lead market maker per NYSE Arca, as of Oct 23, 2026.
Sources and dates
Premium to NAVETFIQ, close against the issuer’s NAV · Oct 2, 2026 to Oct 22, 2026
CapacityETFIQ, each holding’s 20-day median dollar volume · to Oct 22, 2026
DealersForm N-CEN · the year to Dec 31, 2025
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 →OIH fund page→
Cite this pageCitation, APA and Markdown

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

Open data →

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