Screen stocks. Study the context. Keep the ideas you want to revisit.
Use the same date and return period, and compare each group with the stocks behind it.
Set a shared basis
Choose one timeframe in the Sector Heatmap · S&P 500 and check the session date before comparing groups. A return needs both a period and an ending date. Comparing a weekly sector figure with a monthly stock figure can produce a misleading impression, even if the numbers are each correct.
Move from sector to industry
Open a sector from the heatmap and review its industries. Companies in one sector can serve different customers and behave differently over the same period. The industry table makes those differences easier to see without moving straight from a broad average to one stock.
Inspect the member stocks
Open an industry to review its member stocks, and check how many companies stand behind each figure. A group of a few companies can move with a single name, so read its figure with its members in view.
Separate group returns from benchmarks
A sector figure in the Sector Heatmap · S&P 500 is the market-cap-weighted return of that sector’s S&P 500 stocks, and Sector leadership on the dashboard Tools page shows the same 1-day figures. The Market overview panel compares benchmark ETFs such as SPY, and the trend matrix adds sector ETFs such as XLK: funds with their own prices and returns. Compare each figure with its own kind rather than assuming a sector figure and a fund’s return should be identical.
Choose the sector or the industry explicitly
A sector is broader than an industry. Technology can include several different business groups, while a software cohort asks a narrower question. Start with the literal classification values and the same observation session. A company serving an industry does not necessarily belong to that industry in the dataset.
securityType = "Stock" and sector = "Technology" and close > sma200Compare companies on the same period
A one-month price gain and a year-to-date gain have different start points. A sector index can also weight members differently from a simple company list. Compare individual companies with the same return period, then use the retained heatmap for broader context.
Read our data and methodology notes for calculation context. This guide explains research tools and observations. It does not recommend a trade or investment.