Magnum Opus Acquisition Cl A. Replay the stock market charts of OPA day by day, back to 2003. Open long and short positions without spending any money. Magnum Opus Acquisition Limited does not have significant operations. It intends to effect a merger, share exchange, asset acquisition, share purchase, reorganization, or related business combination with one or more businesses. The company was founded in 2021 and is based in Central, Hong Kong.