{"index": {"name": "Metal Fabrication", "level": "industry", "country_code": "CN", "sector": "Industrials", "industry": "Metal Fabrication", "constituent_count": 81, "latest": {"week_ending": "2026-05-29", "index_value": 1879.45773218, "weekly_return": -8.23647285, "constituents": 81, "advancing": 10, "declining": 71, "unchanged": 0, "trend_line": 1866.144792, "activity_lines": {"activity_5": 1981.903214, "activity_10": 1949.744199, "activity_20": 1921.485342, "activity_30": 1902.198358}, "fair_value": 1345.977747, "trend_signal": 1}, "summary": "For the week ending 29 May 2026, Metal Fabrication declined 8.24% with 10 advancing, 71 declining, and 0 unchanged constituents.", "links": {"chart": "https://sharemaestro.com/structure/cn/industrials/metal-fabrication/", "api": "https://sharemaestro.com/api/structure/cn/industrials/metal-fabrication/", "share_image": "https://sharemaestro.com/structure/cn/industrials/metal-fabrication/share-image.svg"}}, "available": true, "methodology": 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