someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential)
"The seasoned arb spotted a fleeting discrepancy between the futures and spot markets, instantly executing trades to lock in risk-free profits before the gap closed."
Initialism of angiotensin receptor blocker.
"The quantitative team is analyzing market data to identify new opportunities for arb before the trading floor opens."
The act of or potential for arbitrage.
To engage in arbitrage.
"The hedge fund manager decided to park all their capital in liquid assets while waiting for the right moment to arb the market inefficiencies between two major exchanges."