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By 30 June 2026, the energy sector on the Indonesia Stock Exchange (IDX) was down 42.17% for the year. The consumer non-cyclicals sector, the one people call "defensive", was down 19.48%.
Both numbers are painful. But one is less than half the other. That gap is the whole idea behind cyclical vs defensive stocks. This post explains the two groups in plain words, shows how IDX sectors tend to sort, and is honest about where the label stops being useful. It does not tell you what to buy.
A cyclical stock is a company whose profit rises and falls with the economy. When people and businesses spend more, it earns a lot. When they cut back, it earns much less. Standard finance study material describes a cyclical company as one whose profit is strongly tied to the strength of the overall economy (AnalystPrep, CFA Level 1 notes).
A defensive stock (also called non-cyclical) sells things people keep buying even in a bad year. Think rice, cooking oil, soap and medicine. The same material describes these companies as ones whose performance is largely independent of the business cycle.
The key word is "largely". Defensive does not mean safe. It means less sensitive. You will see why in a moment.
The IDX groups every listed company into one of 12 sectors under its IDX-IC system, according to the exchange's launch coverage by ANTARA. Our guide to how IDX-IC classification works lists all twelve and explains how each company gets its label.
IDX-IC does not stamp a sector "cyclical" or "defensive". That sorting is ours, and it is a rule of thumb. Here is one common way to read it:
| Leans cyclical (demand swings with the economy and prices) | Leans defensive (demand is steadier) |
|---|---|
| Energy | Consumer Non-Cyclicals |
| Basic Materials | Healthcare |
| Industrials | |
| Consumer Cyclicals | |
| Properties & Real Estate | |
| Transportation & Logistics |
Two sectors are easy to place because the name says it. Consumer Cyclicals is cyclical. Consumer Non-Cyclicals is the defensive one. TradingView commentary describes the Consumer Non-Cyclical index as tracking "consumer defensive" stocks. That is an analyst's description, not an official IDX label.
Some sectors do not fit neatly. Financials depend on loan growth and interest rates. Technology and Infrastructures can go either way. Treat the table as a starting point, not a verdict.
Words are easy. Numbers show whether the labels work. Here is each sector index's change from 1 January to 30 June 2026, as reported by Bisnis.com and Kontan:
| Sector | Change, 1 Jan to 30 Jun 2026 | Source |
|---|---|---|
| Energy | −42.17% | Bisnis.com, Kontan |
| Properties & Real Estate | −40.15% | Kontan |
| Industrials | −34.10% | Bisnis.com |
| Basic Materials | −32.24% | Bisnis.com |
| Consumer Cyclicals | −31.50% | Bisnis.com |
| Consumer Non-Cyclicals | −19.48% | Bisnis.com |
Retrieved 13 October 2026 through search summaries. The full articles sit behind paywalls or were not reachable, so check the sources before you rely on any single figure. The Bisnis.com article's Healthcare row was cut off and we could not find it, so Healthcare is left out.
For comparison, the main index (IHSG) closed at 5,643.19 on 30 June 2026, according to Katadata. By 31 July it was down 27.88% for the year, at 6,236.13, per Investortrust.
Look at the pattern. The cyclical-leaning sectors fell 31% to 42%. The defensive-leaning one fell 19%. The labels did their job: defensive fell less.
Now look at the other side. Katadata's headline for the second quarter says every IDX-IC sector weakened. Defensive fell too.
Here is simple arithmetic to show why the gap matters. These are NetWort illustrations, not forecasts. They reuse the real percentages above.
Say you hold Rp100 juta (Rp100 million) in each of two sector indexes. Index A moves like Energy, down 42.17%. Index B moves like Consumer Non-Cyclicals, down 19.48%.
| Starts at | After the fall | Gain needed to get back to Rp100 juta | |
|---|---|---|---|
| Index A (energy-like) | Rp100 juta | Rp57,83 juta | about +72.9% |
| Index B (defensive-like) | Rp100 juta | Rp80,52 juta | about +24.2% |
Losses are lopsided. Falling 42% needs a rise of about 73% to recover. Falling 19% needs about 24%. A smaller fall is easier to climb out of.
That is the real value of the defensive idea. It is about the size of the hole, not about avoiding it.
Three traps catch beginners.
1. Sector is not the whole story. One company can earn money from several businesses. Two stocks in different sectors can share the same hidden bet, such as coal prices. Our post on IDX-IC classification walks through a real case.
2. Price matters, not just the business. A steady business can still fall hard if its shares were expensive. Consumer Non-Cyclicals lost 19.48% in six months. The products did not stop selling. The price people were willing to pay for the shares changed.
3. The mix changes with the rules. The IDX reviews each company's classification every year starting in April, with changes effective in July, according to the ANTARA report. A company can move sectors, so an old sector chart may not hold the same companies today.
You do not need to take anyone's word for which sector is steadier. You can look.
Sector rotation, the habit of money moving between sectors as the economy shifts, is a related idea. Our guide on how to track IDX sector rotation covers it.
Open the NetWort Market page and compare how the sectors have moved over different time frames. Find the biggest loser and the smallest loser, then ask whether the gap matches the cyclical vs defensive idea in this post.