Industry	Market weight	12M change	Movement	Participation
Paper & Plastic Packaging Products & Materials Lost weight for 1 consecutive month	27.67%	+27.31 pp	Reversing upward	Concentrated
Systems Software Gained weight for 1 consecutive month	4.49%	-2.69 pp	Declining faster	Concentrated
Technology Hardware, Storage & Peripherals Gained weight for 1 consecutive month	5.94%	-2.26 pp	Reversing downward	Concentrated
Broadline Retail Gained weight for 1 consecutive month	3.32%	-1.55 pp	Reversing downward	Concentrated
Application Software Gained weight for 1 consecutive month	1.63%	-1.54 pp	Declining faster	Broad
Health Care Equipment Lost weight for 4 consecutive months	1.41%	-1.27 pp	Declining faster	Broad
Pharmaceuticals Lost weight for 3 consecutive months	3.06%	-1.12 pp	Reversing downward	Concentrated
Diversified Banks Gained weight for 1 consecutive month	2.63%	-1.07 pp	Reversing downward	Concentrated
Managed Health Care Lost weight for 3 consecutive months	0.51%	-1.01 pp	Declining faster	Concentrated
Transaction & Payment Processing Services Lost weight for 3 consecutive months	0.51%	-0.73 pp	Declining faster	Concentrated

How are these descriptive states defined?

Gaining / losing: 12-month weight change above +0.005pp / below −0.005pp. Direction and speed are separate dimensions, not mutually exclusive recommendations.

Accelerating / slowing: compare the most recent 3M change with the preceding 3M change. Accelerating means a positive change speeds up by >0.02pp. Slowing means the magnitude of movement declines by >0.02pp. A falling industry can also slow.

Reversing: the last two 3M changes have opposite signs, outside a ±0.005pp tolerance. Persistence counts consecutive same-direction monthly changes.

Broad / concentrated: company attribution, not a market-cap concentration shortcut. Concentrated means the three largest same-direction contributors account for ≥70% of gross same-direction changes; otherwise broad requires ≥60% of constituents moving with the industry. Other cases are mixed.

Weights use matched S&P 500 members with SEC-reported shares and monthly prices. Companies without both data series are omitted; weights are normalised across matched members each month. These are simple market-cap estimates, not official float-adjusted S&P weights or measured investor flows.