def auctionDF(symbol=None, token='', version=''):
    '''DEEP broadcasts an Auction Information Message every one second between the Lock-in Time and the auction match for Opening and Closing Auctions,
    and during the Display Only Period for IPO, Halt, and Volatility Auctions. Only IEX listed securities are eligible for IEX Auctions.

    https://iexcloud.io/docs/api/#deep-auction

    Args:
        symbol (string); Ticker to request
        token (string); Access token
        version (string); API version

    Returns:
        DataFrame: result
    '''
    df = pd.io.json.json_normalize(auction(symbol, token, version))
    _toDatetime(df)
    return df
DEEP broadcasts an Auction Information Message every one second between the Lock-in Time and the auction match for Opening and Closing Auctions,
    and during the Display Only Period for IPO, Halt, and Volatility Auctions. Only IEX listed securities are eligible for IEX Auctions.

    https://iexcloud.io/docs/api/#deep-auction

    Args:
        symbol (string); Ticker to request
        token (string); Access token
        version (string); API version

    Returns:
        DataFrame: result