Seasonality Trends for September 2021

One Sector Addition and Twelve Expiries This Month

eResearch | Is the anticipated market pull-back now at hand? Well, a number of economic indicators are pointing that way.

For instance, the rate of growth in U.S. GDP is slowing. The U.S. Purchasing Managers Index (PMI) peaked in March, although it is currently around 60 and still well in positive territory (>50). The New York Empire Manufacturing Index peaked in May. The Delta variant case-load continues to rise at an alarming rate in the USA, and this will have an increasingly negative effect on the country’s economic recovery. Other world economies are in a similar state.

FIGURE 1: S&P 500 Index Seasonality
S&P 500 Seasonality
Source: EquityClock.com

Changes for September

The ONE market index/sector that exhibits new seasonal strength in September is Natural Gas Futures.

The TWELVE index/sectors that leave their period of seasonality strength behind this month are: Russell 2000, Energy, Consumer Discretionary, Consumer Staples, Real Estate (General), Automobiles, Airlines, Biotechs, Retail, Integrated Oil & Gas, Oil&Gas Exploration & Production, and Gold Futures.

The THREE index/sectors that left at the end of August are: the S&P/TSX Composite Index, Residential REITs, and Silver Futures.

Seasonal Trends for the Market Segments in September

The following table shows which indexes/sectors gain or lose seasonal strength during the month of September. There is only 1 addition this month (Natural Gas Futures), shown in GREEN under FROM, but there are 12 expiries this month, shown in RED under UNTIL

NOTE: A full seasonality list of indexes and sectors is provided at the end of this report.

FIGURE 2: Current Seasonal Positive Strength for the Market Segments
Seasonality - Figure 2 - Current Seasonal Positive Strength
Source: Equity Clock and eResearch

Importance of Seasonality Trends

Seasonality refers to particular time-frames when stocks/sectors/indexes are subjected to and influenced by recurring tendencies that produce patterns that are apparent in the investment valuation process. A seasonality study preferably uses at least 10 years of data.

Seasonality Trends Chart

The Seasonality Trends chart below was updated in June 2021. The chart shows the periods of seasonal strength for 38 (formerly 28) market segments (sectors/indexes). Each bar indicates a buy and a sell date based upon the optimal holding period for each market sector/index.

The ten new industry sectors are (1) Retail REITs, (2) Office & Industrial REITs, (3) Residential REITs, (4) Pipelines, (5) Semiconductors, (6) Integrated Oil & Gas, (7) Crude Oil Futures, (8) Automobiles, (9) Airlines, and (10) Railroads.

The Seasonality trends chart is an ever-changing 14-year average of the indexes and sub-indexes that we track. The information in the chart is courtesy of www.equityclock.com.

FIGURE 3: Seasonality Trends Chart (Updated June 2021)
2021-08-01 Seasonality - Chart 2 - Seasonality Chart
Source: Equity Clock

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About Bob Weir 3242 Articles
Bob Weir has over 50 years of investment research and analytical experience in both the equity and fixed-income sectors, and in the commercial real estate industry. He joined eResearch in 2004 and was its President, CEO, and Managing Director, Research Services until December 2018. Prior to joining eResearch, Bob was at Dominion Bond Rating Service (DBRS).