{"url":"https://etfiq.com/funds/arb/trading/","section":"funds","title":"ARB Bid-Ask Spread, Liquidity and NAV Premium | ETFIQ","description":"ARB trading costs and liquidity: spread, premium to NAV, capacity and dealers, from ETFIQ. Spread, premium to NAV, capacity and dealers, dated.","as_of":"Oct 22, 2026","structured_data":[{"@type":"Dataset","@id":"https://etfiq.com/funds/arb/trading/#data","name":"ARB trading costs and liquidity","description":"ARB trading costs and liquidity: spread, premium to NAV, capacity and dealers, from ETFIQ. Spread, premium to NAV, capacity and dealers, dated.","url":"https://etfiq.com/funds/arb/trading/","dateModified":"2026-10-22","creator":{"@id":"https://etfiq.com/#org"},"license":"https://etfiq.com/license/","isAccessibleForFree":true,"creditText":"ETFIQ (etfiq.com)","variableMeasured":["30-day median bid-ask spread","Premium or discount to NAV","Capacity","Active authorized participants","IQ Liquidity Score","Cost to trade by order size"],"distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://etfiq.com/data/trading-score.json"}],"publisher":{"@id":"https://etfiq.com/#org"},"inLanguage":"en","creativeWorkStatus":"Published"},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Who is the LMM for ARB?","acceptedAnswer":{"@type":"Answer","text":"ARB\u2019s lead market maker (LMM) on NYSE Arca is GTS Securities LLC. Lead market maker per NYSE Arca, as of Oct 23, 2026."}}]},{"@type":"InvestmentFund","@id":"https://etfiq.com/funds/arb#fund","name":"AltShares Merger Arbitrage ETF","alternateName":"ARB","url":"https://etfiq.com/funds/arb","identifier":[{"@type":"PropertyValue","propertyID":"tickerSymbol","value":"ARB"}],"mainEntityOfPage":{"@id":"https://etfiq.com/funds/arb#webpage"}},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"ETFIQ","item":"https://etfiq.com/"},{"@type":"ListItem","position":2,"name":"ARB","item":"https://etfiq.com/funds/arb"},{"@type":"ListItem","position":3,"name":"Trading","item":"https://etfiq.com/funds/arb/trading/"}]},{"@type":"WebPage","name":"ARB Bid-Ask Spread, Liquidity and NAV Premium","description":"ARB trading costs and liquidity: spread, premium to NAV, capacity and dealers, from ETFIQ. Spread, premium to NAV, capacity and dealers, dated.","url":"https://etfiq.com/funds/arb/trading/","dateModified":"2026-10-22","isPartOf":{"@type":"WebSite","name":"ETFIQ","url":"https://etfiq.com"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".faq"]},"publisher":{"@id":"https://etfiq.com/#org"}}],"characters":2487,"truncated":false,"content":"ETFIQ / ARB / Trading \n \n As of Oct 22, 2026. Rebuilt every trading night.\n ARB bid-ask spread and liquidity\n IQ Liquidity Score\n Not scored, 0 of 6 measured.\n 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 \n Cost to trade Not measured: the issuer's 30-day median spread is not read for this fund Capacity Not measured: no book of its holdings is read Price fidelity Not measured: no closing premium is held for this fund Primary market Not measured: no N-CEN ETF row for series S000108415 in the quarters read (2024q4 to 2026q3) Bad-day behaviour Not measured: no daily closing premium is held for this fund Depth Not measured: needs trade and quote data (Phase 2) \n Capacity\n Not measured: no book of its holdings is read.\n How to trade ARB\n When ETF spreads are usually widest in the first minutes after the open and the last minutes before the close. ETFIQ measures this fund\u2019s own day once it has trade data. Coming with trade data\n Spread through the day, buyers against sellers, an estimate of retail flow, large trades and the closing auction\u2019s share, each once ETFIQ has trade and quote data.\n Questions people ask\n Who is the LMM for ARB? ARB\u2019s lead market maker (LMM) on NYSE Arca is GTS Securities LLC. Lead market maker per NYSE Arca, as of Oct 23, 2026. Sources and dates\n Where to next\n ARB fund page ETF trading costs and liquidity Limit orders vs market orders for ETFs Why low volume does not mean illiquid How the IQ Liquidity Score is built Compare ARB with another fund The score measures trading conditions, not the fund. ETFIQ is an independent publisher, not an adviser, and makes no recommendations. Standards and sources \n Cite this page. ETFIQ, ARB trading: cost, capacity, premium and dealers, data as of Oct 22, 2026. https://etfiq.com/funds/arb/trading/ Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data .\n Other forms Plain ETFIQ, ARB trading: cost, capacity, premium and dealers, data as of Oct 22, 2026. https://etfiq.com/funds/arb/trading/ APA ETFIQ. (Oct 22, 2026). ARB trading: cost, capacity, premium and dealers. Retrieved from https://etfiq.com/funds/arb/trading/ Markdown [ARB trading: cost, capacity, premium and dealers (ETFIQ, Oct 22, 2026)](https://etfiq.com/funds/arb/trading/)","source":"ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.","publisher":{"@id":"https://etfiq.com/#org","name":"ETFIQ","url":"https://etfiq.com"},"license":"https://etfiq.com/license/","license_text":"Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.","citation":"ETFIQ, ARB trading: cost, capacity, premium and dealers, data as of Oct 22, 2026. https://etfiq.com/funds/arb/trading/"}