{
    "success": true,
    "data": {
        "ucits": true,
        "type": "ETF",
        "replication_method": "physical",
        "derivatives": false,
        "swaps": false,
        "inverse": false,
        "leverage": false,
        "complex_factors": [
            "Contingent Convertible Bonds",
            "Complex Indices"
        ],
        "classification": "complex",
        "supporting_data": "The WisdomTree AT1 CoCo Bond UCITS ETF is classified as complex primarily because it invests in Contingent Convertible Bonds ('CoCos'). The document explicitly states that 'CoCos are relatively new and complex instruments'. Furthermore, it tracks the iBoxx Contingent Convertible Liquid Developed Europe AT1 Index, which by its nature focuses on these complex instruments. While the ETF employs a passive management approach and a representative sampling strategy, the underlying assets themselves are considered complex and carry risks such as principal write-down or conversion into equity under certain circumstances. MiFID II rules, particularly those derived from ESMA guidelines, deem instruments that are difficult for retail investors to understand as complex. The inherent nature and risks associated with CoCos fall into this category. Although the ETF uses physical replication and does not explicitly mention the use of derivatives for its core strategy or hedging, the complexity of the underlying asset class (CoCos) drives the classification. The document also mentions risks like tracking error and counterparty risk, but the primary driver for complexity is the nature of the underlying bonds."
    }
}