{"index": {"name": "Oil & Gas Equipment & Services", "level": "industry", "country_code": "CN", "sector": "Energy", "industry": "Oil & Gas Equipment & Services", "constituent_count": 21, "latest": {"week_ending": "2026-07-17", "index_value": 1412.38110619, "weekly_return": -3.29728552, "constituents": 21, "advancing": 7, "declining": 13, "unchanged": 1, "trend_line": 1658.553024, "activity_lines": {"activity_5": 1453.235034, "activity_10": 1498.647214, "activity_20": 1598.472535, "activity_30": 1644.27894}, "fair_value": 1199.93774, "trend_signal": 0}, "summary": "For the week ending 17 July 2026, Oil & Gas Equipment & Services declined 3.30% with 7 advancing, 13 declining, and 1 unchanged constituents.", "links": {"chart": "https://sharemaestro.com/structure/cn/energy/oil-gas-equipment-services/", "api": "https://sharemaestro.com/api/structure/cn/energy/oil-gas-equipment-services/", "share_image": 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