{
  "id": 1120,
  "title": "Price at Trade Event",
  "url": "/competitions/AlgorithmicTradingChallenge/discussion/1120",
  "author_name": "",
  "post_date": "2011-12-03T00:23:50.383Z",
  "votes": null,
  "comment_count": 1,
  "views": 1721,
  "content": "<p>This is probably a dumb question, but the bid and ask prices should be equal for a trade event. I do not see that happening. Also, does each row correspond to one security? Thanks, Nandini</p>",
  "messages": [
    {
      "id": "6932",
      "postDate": "12/03/2011 00:23:50",
      "content": "<p>This is probably a dumb question, but the bid and ask prices should be equal for a trade event. I do not see that happening. Also, does each row correspond to one security? Thanks, Nandini</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "6933",
      "postDate": "12/03/2011 03:18:46",
      "content": "<p>Someone can correct me if this is wrong, but I believe that the bid and ask prices that we are given correspond to the limit order book.&nbsp; A market trade(which I believe the trade that creates the liquidity shock is) will not reflect on the bid side of the\r\n limit order book.&nbsp;</p>\r\n<p>Each row has a security id.&nbsp; Each unique security id corresponds to an underlying security.</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 6933,
      "author_name": "vikpar",
      "author_url": "",
      "post_date": "12/03/2011 03:18:46",
      "content": "<p>Someone can correct me if this is wrong, but I believe that the bid and ask prices that we are given correspond to the limit order book.&nbsp; A market trade(which I believe the trade that creates the liquidity shock is) will not reflect on the bid side of the\r\n limit order book.&nbsp;</p>\r\n<p>Each row has a security id.&nbsp; Each unique security id corresponds to an underlying security.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "6932": "",
    "6933": ""
  },
  "source": "meta"
}