The Constant March of Time<\/strong><\/p>\n October has a vibe. As L.M. Montgomery put it in Anne of Green Gables: \u201cI\u2019m so glad I live in a world where there are Octobers.\u201d<\/p>\n I am too \u2013 though I only love half of it. Early October in Chicago is perfect: crisp mornings, playoff baseball and, this year, the magic of Wrigley with my 10-year-old son. But as the days shorten and the trees bare, I can\u2019t help feeling that faint melancholy that comes with decay \u2013 nature\u2019s reminder that time is always marching.<\/p>\n Watching daylight slip away each fall reminds me of how elastic time can feel \u2013 stretched, compressed, sometimes inverted altogether. Even the universe plays with time\u2019s rhythm\u2026<\/p>\n Condensing Seasons (Years into Days)<\/strong><\/p>\n On Mercury, one solar day (sunrise to sunrise) is longer than a year on Earth (full rotation around the sun). Put differently, Mercury revolves around the sun in 88 Earth days, but sunup to sunup takes 176 days. The day is longer than the year.<\/p>\n In markets, we\u2019ve created our own version of Mercury time. Derivatives trading has compressed \u201cyears into days.\u201d Short-dated options now dominate volume, where traders measure opportunity not in months or quarters, but in hours.<\/p>\n There\u2019s no shortage of coverage around the boom in this activity. We\u2019re now three years on from the first week with index options expiring every trading day. Continued growth is a testament to broader appreciation of cash settled products, increased opportunities to monetize option-based strategies, and (in my estimation) a feedback loop that\u2019s allowed individual traders to refine their approaches with precision.<\/p>\n<\/p>\n