René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Historic market cap data is incorrect","articleBody":"**Describe the bug**\nHistoric market cap data is incorrect\n\n**To Reproduce**\n```\nclient = RESTClient(api_key=api_key)\ndate = [\"2004-03-30\", \"2004-04-01\", \"2017-03-30\", \"2017-04-01\", \"2026-03-27\"]\nticker = \"AAPL\"\nfor d in date:\n    details = client.get_ticker_details(ticker, date=d)\n    print(f\"date: {d}  market_cap: {int(details.market_cap)/1e9:.2f}B\")\n```\n\nOutput:\nAAPL:\ndate: 2004-03-30  market_cap: 458.07B\ndate: 2004-04-01  market_cap: 444.78B\ndate: 2017-03-30  market_cap: 2361.37B\ndate: 2017-04-01  market_cap: 2356.94B\ndate: 2026-03-27  market_cap: 3652.67B\n\nMSFT:\ndate: 2004-03-30  market_cap: 189.20B\ndate: 2004-04-01  market_cap: 188.30B\ndate: 2017-03-30  market_cap: 493.35B\ndate: 2017-04-01  market_cap: 494.48B\ndate: 2026-03-27  market_cap: 2649.24B\n\n\n**Expected behavior**\nAAPL is off by almost 2 magnitude on 2004-03-30 according to https://companiesmarketcap.com/apple/marketcap/\n\nMSFT is off by ~80B on 2004-03-30 according to https://companiesmarketcap.com/microsoft/marketcap/\n\n2017 data also off\n\n\n**Additional context**\nAdditionally, is there other ways of querying for market cap and weighted_shares_outstanding of a ticker for a range of dates, other than to query get_ticker_details for each date separately?\n","author":{"url":"https://github.com/jimwz","@type":"Person","name":"jimwz"},"datePublished":"2026-05-09T21:17:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1016/client-python/issues/1016"}