A trailing PE ratio divides today’s price by the last reported year of profit. For a cyclical business — cement, steel, oil & gas exploration, sugar — that last reported year is a snapshot of wherever the cycle happens to be sitting, not a stand-in for what the business normally earns. The result runs backwards from how the number is usually read: PE looks cheapest right when a cyclical’s profit is at its peak and about to turn down, and looks most expensive right when profit is at its trough and about to recover.
Why the same formula gives an opposite signal
Cement is the clearest PSX example because the sector’s swings are large and well documented. A cement maker’s profit moves with two things it does not control on its own: local retention prices, which move with capacity utilisation across the whole sector, and export demand and coal costs, which move with regional and global prices. None of that changes the kilns a company owns. So when the cycle is favourable, a cyclical reports a strong profit year, its trailing PE looks low, and it can appear statistically “cheap” against the market — precisely when the favourable pricing is least likely to persist. When the cycle turns, trailing profit falls, the same PE formula produces a high number, and the stock can look “expensive” right as the cycle bottoms and the setup for recovery improves. The ratio is doing exactly what it is defined to do; the mistake is reading one year of trailing profit as a durable earnings level rather than a point on a cycle.
D.G. Khan Cement’s own dividend record, filed with PSX and shown below, is a visible downstream trace of that swing — a company does not cut its per-share payout to roughly a seventh of its former level and then hold it there for three years because its plants shrank:
| Ex-date | DGKC dividend (Rs/share) | Where the cycle was |
|---|---|---|
| 2017-10-19 | 7.50 | Multi-year sector high |
| 2018-10-17 | 4.25 | Turning down |
| 2019-10-10 | 1.00 | Trough |
| 2021-10-18 | 1.00 | Trough, held |
| 2022-10-13 | 1.00 | Trough, held |
| 2025-10-13 | 2.00 | Partial recovery |
This is a dividend record, not an EPS series — the desk does not have DGKC’s audited EPS for every one of those years in hand for this piece — but a sevenfold payout swing on an unchanged asset base is itself evidence that the underlying profit the trailing PE was dividing by moved just as sharply.
What today’s PE spread actually shows
Checking the desk’s own data layer — the same PSX company-announcement filings behind the fair-value tool — on 8 September 2026 shows PSX’s cyclicals trading at consistently lower trailing multiples than its steadier-earnings names:
| Company | Sector | Trailing PE |
|---|---|---|
| Lucky Cement (LUCK) | Cement | 7.20× |
| D.G. Khan Cement (DGKC) | Cement | 7.77× |
| Maple Leaf Cement (MLCF) | Cement | 8.78× |
| Pakistan Petroleum (PPL) | Oil & Gas Exploration | 8.09× |
| OGDC | Oil & Gas Exploration | 9.09× |
| Pakistan Tobacco (PAKT) | Tobacco | 10.41× |
| Meezan Bank (MEBL) | Commercial Banks | 11.36× |
| Systems Limited (SYS) | Technology & Communication | 15.91× |
| Nestlé Pakistan (NESTLE) | Food & Personal Care | 20.18× |
A single low PE inside that first group is not, by itself, a signal that the market has mispriced a cement or exploration name. It is at least as consistent with the market correctly pricing in a profit cycle that is not expected to repeat at its recent level.
Reading around the distortion
The general fix is not to abandon trailing PE but to widen the window it is read against: several years of EPS spanning at least one full cycle, rather than the latest reported figure alone, and a comparison against the company’s own history and sector rather than the market as a whole. Where that longer earnings history isn’t in hand, PB and dividend yield are the more reliable cross-checks precisely because they don’t collapse to a single trailing year the way PE does — book value moves slowly, and a payout record like DGKC’s above is itself the tell that a trailing multiple needs a second look. Index-level comparisons carry their own version of this problem: the KSE-100 is dominated by a mix of cyclical and non-cyclical sectors, so its blended PE answers a different question than any one constituent’s. Whatever a valuation concludes, sizing it into an actual position is a separate step — the desk’s position-size calculator covers that.
Checking any of this yourself
- PSX Data Portal Services — company announcements — every listed company’s filed results and dividend announcements, including DGKC’s, in the order filed
Research, not advice. This explains a distortion in one ratio, not a verdict on any company named above; nothing here is a recommendation to buy or sell anything. Always check a company’s earnings history across a full cycle, not just the latest reported year, before leaning on its trailing PE.