"TED spread" meaning in English

{
  "etymology_text": "Initially, the TED spread was the difference between the interest rate for the three month U.S. Treasuries contract and three month Eurodollars contract as represented by the London Inter Bank Offered Rate. So \"TED\" came from the initialism of \"T-Bill\" and \"ED\"—the ticker symbol for the Eurodollar futures contract. Since the Chicago Mercantile Exchange dropped the T-bill futures, the TED spread has had the current definition.",
  "head_templates": [
    {
      "args": {},
      "expansion": "TED spread",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Finance",
          "orig": "en:Finance",
          "parents": [
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The difference in yields between inter-bank and U.S. Government loans."
      ],
      "id": "en-TED_spread-en-name-8BIZyFco",
      "links": [
        [
          "finance",
          "finance#Noun"
        ],
        [
          "yield",
          "yield"
        ],
        [
          "loan",
          "loan"
        ]
      ],
      "raw_glosses": [
        "(finance) The difference in yields between inter-bank and U.S. Government loans."
      ],
      "topics": [
        "business",
        "finance"
      ],
      "wikipedia": [
        "TED spread"
      ]
    }
  ],
  "word": "TED spread"
}

{
  "etymology_text": "Initially, the TED spread was the difference between the interest rate for the three month U.S. Treasuries contract and three month Eurodollars contract as represented by the London Inter Bank Offered Rate. So \"TED\" came from the initialism of \"T-Bill\" and \"ED\"—the ticker symbol for the Eurodollar futures contract. Since the Chicago Mercantile Exchange dropped the T-bill futures, the TED spread has had the current definition.",
  "head_templates": [
    {
      "args": {},
      "expansion": "TED spread",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "en:Finance"
      ],
      "glosses": [
        "The difference in yields between inter-bank and U.S. Government loans."
      ],
      "links": [
        [
          "finance",
          "finance#Noun"
        ],
        [
          "yield",
          "yield"
        ],
        [
          "loan",
          "loan"
        ]
      ],
      "raw_glosses": [
        "(finance) The difference in yields between inter-bank and U.S. Government loans."
      ],
      "topics": [
        "business",
        "finance"
      ],
      "wikipedia": [
        "TED spread"
      ]
    }
  ],
  "word": "TED spread"
}