The following table lists the sectors that have historically been strong in August.
| Sector | TIDM |
| Food & Drug Retailers | NMX5330 |
| Gas, Water & Multiutilities | NMX7570 |
| Health Care Equipment & Services | NMX4530 |
| Household Goods | NMX3720 |
| Software & Computer Services | NMX9530 |
And the following table lists the sectors that have been weak in August.
| Sector | TIDM |
| Chemicals | NMX1350 |
