Bank of America Merrill Lynch announced Monday that it had added four electronic options algorithms to its algorithmic trading platform.

The four options — clean sweep, hidden sweep, iceberg and NBBO sweep — complement the company's existing options and stock-specific algorithmic strategies designed for institutional equity and options traders, as well as broker-dealers.

Clean sweep is designed to exhaust hidden and displayed liquidity and then post residuals; hidden sweep sweeps the market when an order is marketable; iceberg is a synthetic reserve order that lets traders designate how much of an order should be displayed when posting to the market, and NBBO — or national best bid and offer — sweep is an order type that selects exchange based on NBBO. An order will shift to a sweep strategy based on displayed liquidity.

The options algorithms are available directly from Bank of America Merrill Lynch's proprietary platforms InstaQuote and ML X-Trade, its proprietary FIX API, as well as from third parties, including Bloomberg, ConvergEx's Eze OMS, Derivix and RealTick, a unit of Townsend Analytics Ltd.

Bank of America Merrill Lynch said it has seen substantial annual growth in its market share of electronic trading.

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