{"_license": "Reuse with attribution is welcome; copying the work is not. Data (/api/**.json): CC BY 4.0. Charts, share images, embeds and quotes: free to reuse when credited \"History of Market · 美股编年史 (historyofmarket.com)\" with a link. No derivative or look-alike sites, no use of the brand names, no citation without the source. Terms: https://historyofmarket.com/license/", "_attribution": "History of Market · 美股编年史 (historyofmarket.com)", "_canonical": "https://historyofmarket.com/api/consumer/ratio.json", "_terms": "https://historyofmarket.com/license/", "updated": "2026-09-06", "source": {"method": "Daily ratio of the Consumer Discretionary Select Sector SPDR closing price to the Consumer Staples Select Sector SPDR closing price, on the dates both funds traded. Closes are split- and dividend-adjusted, so the ratio is a total-return relative. 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