# STOX Bid-Ask Spread, Liquidity and NAV Premium > STOX trading costs and liquidity: spread, premium to NAV, capacity and dealers, from ETFIQ. Spread, premium to NAV, capacity and dealers, dated. Data as of Oct 22, 2026. Rebuilt every trading night. As of Oct 22, 2026. Rebuilt every trading night. ## STOX bid-ask spread and liquidity ### IQ Liquidity Score Not scored, 2 of 6 measured. 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 can be bought and sold, not whether to own it. How the score is built Cost to trade Not measured: the issuer's 30-day median spread is not read for this fund Capacity, 87.2 Holdings can absorb $412m a day, Oct 22, 2026 Price fidelity Not measured: no closing premium is held for this fund Primary market, 65.0 4 active dealers of 4; largest 59% of creations and redemptions, N-CEN to Nov 30, 2025 Bad-day behaviour Not measured: no daily closing premium is held for this fund Depth Not measured: needs trade and quote data (Phase 2) ### Capacity Its holdings can absorb $412m a day, measured on its own holdings, as of Oct 22, 2026. The holding that sets the limit is Roundhill Magnificent Seven ET (MAGS), 6.72% of the fund. ### Dealers 4 active of 4 authorized participants; the largest did 59% of creations and redemptions, in the year to Nov 30, 2025 (Form N-CEN filed Feb 13, 2026). The active authorized participants, largest first, by share of the dollars created and redeemed: Merrill Lynch Professional Clearing Corp. (59.5%), Virtu Americas LLC (21.0%), Goldman Sachs & Co. LLC (15.8%), Jane Street Capital, LLC (3.7%). ### How to trade STOX When ETF spreads are usually widest in the first minutes after the open and the last minutes before the close. ETFIQ measures this fund’s own day once it has trade data. Size Up to $4m is 1% of what its holdings can absorb in a day, for a buy or a sell. ### Coming with trade data Spread through the day, buyers against sellers, an estimate of retail flow, large trades and the closing auction’s share, each once ETFIQ has trade and quote data. ### Questions people ask Who is the AP for STOX? STOX’s latest Form N-CEN, for the period ending Nov 30, 2025, lists 4 authorized participants (APs), and 4 created or redeemed shares. The largest were Merrill Lynch Professional Clearing Corp. (59.5%), Virtu Americas LLC (21.0%), Goldman Sachs & Co. LLC (15.8%) of the dollars its APs created and redeemed. Who is the LMM for STOX? STOX’s lead market maker (LMM) on Cboe BZX is GTS Securities LLC. Lead market maker per Cboe BZX, as of Oct 23, 2026. ### Sources and dates - Capacity: ETFIQ, from each holding’s 20-day median dollar volume, to Oct 22, 2026. - Dealers: Form N-CEN, the year to Nov 30, 2025, accession 0000894189-26-003716. ### Where to next The score measures trading conditions, not the fund. ETFIQ is an independent publisher, not an adviser, and makes no recommendations. Standards and sources --- Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices. Cite: ETFIQ, STOX trading: cost, capacity, premium and dealers, data as of Oct 22, 2026. https://etfiq.com/funds/stox/trading/ Licence: https://etfiq.com/license/ Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms. HTML: https://etfiq.com/funds/stox/trading/