A Different Yardstick: HKU's Ten-Year Trajectory in the THE World University Rankings

The bottom line: The University of Hong Kong (HKU) ranks 33rd globally in the Times Higher Education (THE) World University Rankings 2026^※ (released October 2025, the highest among Hong Kong institutions, up 2 places from last year's 35th); it sits in the top three Hong Kong universities on the international outlook component with a score of 96.6^※, and scores 95.6 on research quality — but its teaching (68.3) and research environment (70.8) scores pull the overall total down. This particular yardstick, with its five dimensions and 18 indicators, is entirely different from QS, and it draws a different portrait of HKU.

The University of Hong Kong (HKU) Comprehensive Information Database · Module 03: Rankings · THE Deep Dive

This article covers only HKU against the THE yardstick. For a multi-ranking overview, see World Comprehensive Rankings; for in-depth analysis of QS and U.S. News, see QS & U.S. News: A Five-Year Deep Dive; for the full subject-ranking tables, see Subject Rankings. Data compiled: June 2026 (year-on-year figures refer to the edition years marked below).

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# What is the THE ranking, and how does it fundamentally differ from QS?

The answer: The THE World University Rankings is compiled by Times Higher Education, a British publication. The 2026 edition assessed 2,191 universities across 115 countries and territories^※, aggregating scores across five dimensions — Teaching, Research Environment, Research Quality, International Outlook and Industry — using 18 indicators. The single heaviest indicator is research reputation (18%), and the bibliometric data come from Elsevier's Scopus database. This overlaps with QS — which leans on an academic reputation survey (30%), its own surveys, and Scopus — but the two methodologies also differ at a fundamental level.

The gap between HKU's positions on the two rankings is telling: 33rd on THE 2026 versus 11th on QS 2027 — a difference of roughly 22 places. The root cause is that QS gives enormous weight to "nearly half its indicators" (reputation at 45%) and internationalisation combined, while THE measures research output volume and research reputation independently and devotes nearly 30% of its weight to teaching environment alone. HKU's strengths — international faculty, international students, and an international co-authorship network — score highly on both rankings, but THE's teaching indicators examine finer details such as student-to-staff ratio, doctoral-to-bachelor's degree ratio, and institutional income. These indicators make the differences between comprehensive research universities and specialised institutions far more visible.

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# What exactly do THE's five dimensions measure? What changed in the 2024 edition?

The answer: In its 2024 edition (the 20th) THE carried out the largest methodological overhaul since the rankings began^※, renaming "Citations" as "Research Quality" and splitting it from a single indicator into four, while also renaming "Industry Income" as "Industry" and adding a citation-of-patents indicator. This overhaul directly affects cross-university comparisons, and understanding it is a prerequisite for reading HKU's trajectory.

The table below sets out the weights and sub-indicators of the five dimensions in the current (2025/2026) edition:

Three key changes in the 2024 edition: First, "Research Quality" was split from a single indicator into four, allowing highly-cited output and cross-disciplinary influence to be scored independently — a change broadly favourable to research-intensive Hong Kong universities. Second, "Industry" gained a new indicator for citations of patents. Third, the reputation survey grew from around 10,000 respondents to more than 35,000^※, with a cap of 10% on self-votes from any single institution, making the results more representative.

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# What does HKU's ten-year trajectory in THE look like?

The answer: HKU's decade in the THE World University Rankings falls into four phases — an early fluctuation, a mid-period surge, a later wobble, and a recent stabilisation on an upward path: from 43rd in 2016 to 36th in 2019; a dip back to 35th in 2020 and a low of 39th in 2021; a strong rebound in 2022–2023 to 30th–31st, the historic high range; a retreat to 35th in 2024–2025; and a recovery to 33rd in 2026.

Three observations emerge from this curve. First, external shocks briefly depress the reputation-survey scores — the drop to 39th in the 2021 edition correlates directly with the decline in cross-border academic exchange density after the social events of 2020. Second, the 2024 methodology overhaul hit HKU far less than it hit QS-style rankings: THE fell from 31st (by 4 places) while in the same year QS dropped HKU from 21st to 26th. Third, the 30th place in 2022, HKU's all-time high in THE, reflects the concentrated release of accumulated effects — a surge in highly-cited scholars and Scopus publication output during the pandemic years.

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# The five sub-scores in the 2026 edition: where is HKU strong, and where is there room?

The answer: HKU's overall THE 2026 score is 80.5, placing it 33rd globally^※. Three of the five sub-scores are near the ceiling — International Outlook (96.6), Industry (96.5) and Research Quality (95.6) — while Teaching Environment (68.3) and Research Environment (70.8) sit closer to the middle. The direct reason those two are comparatively low is the weight that "teaching reputation" and "research reputation", as THE defines them, carry among scholars worldwide — where HKU still trails institutions like Oxford, MIT and Cambridge.

This table explains why HKU ranks far lower on THE (33rd) than on QS (11th). "International outlook" carries only 7.5% weight in THE, whereas in QS the combined "international faculty + international students + international research network" totals around 15%. THE, meanwhile, devotes nearly 60% of its weight to "teaching environment + research environment", and in both of those nearly half the share comes from the reputation surveys. HKU's teaching and research reputations sit comfortably in the global 30–40 range, but against institutions like Oxford, MIT and Harvard, which have occupied the top five for decades, there is an accumulated gap in reputation-survey standings. This structural deficit will not close within a year or two; yet with the rapid rise in highly-cited scholars in recent years (HKU had 54 Clarivate highly-cited researchers in 2025^※), the continued accumulation of research quality should eventually push the reputation scores upward.

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# THE's "Most International" ranking: where does HKU sit on this yardstick?

The answer: In the 2026 edition of THE's separate ranking, the World's Most International Universities, HKU ranks 3rd globally, with the top two spots both taken by Hong Kong institutions — City University of Hong Kong 1st (for the third year running) and HKUST 2nd^※. This is an independent magnification of THE's international outlook indicator, which assesses the proportion of international students, the proportion of international faculty, the proportion of internationally co-authored papers, and an international reputation survey.

This list corroborates the earlier analysis: HKU is near the ceiling on "international outlook", and the main room for improvement lies in the two heavier dimensions — "teaching environment" and "research environment". The core driver of the latter is the academic reputation survey (together amounting to around 33% of total weight), a slow-moving variable that only creeps up when nourished over time by a steady output of high-impact papers and a growing cohort of highly-cited scholars.

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# THE vs QS: why do two rankings give the same university such different results?

The answer: THE 2026 places HKU 33rd; QS 2027 places it 11th — a gap of more than 20 places rooted in fundamentally different weighting priorities. QS assigns nearly half its weight (45%) to the reputation surveys (academic + employer), and folds internationalisation and student-to-staff ratio into the mix. THE treats research quality (30%) and teaching environment (29.5%) as its two heaviest dimensions, with international outlook at just 7.5%. HKU is near the ceiling on internationalisation, which is why QS flatters it; THE's combined teaching-and-research reputation weight of 33% is the slow variable HKU needs to keep building. The two ranks each tell a different truth, and they do not contradict one another — for a detailed methodological comparison, see QS & U.S. News: A Five-Year Deep Dive.

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# HKU's THE subject rankings: which disciplines shine brightest on this yardstick?

The answer: In the THE World University Rankings by Subject 2026, HKU is ranked 1st in Hong Kong in 9 of the 11 subject areas^※. Its flagship is Education Studies, ranked 7th globally; Medical & Health (18th globally), Law (27th) and Social Sciences (33rd) form the next tier of core strengths.

THE's subject rankings normalise "research quality" within each discipline, which is why faculties with high international co-authorship density and strong citation impact — notably medicine and law — perform especially well. Education's 7th place on THE echoes U.S. News ranking it 1st globally for three consecutive years — a resonance that shows the more purely bibliometric the yardstick, the better these citation-strong disciplines fare.

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# How far ahead is HKU among Hong Kong's eight universities? Is the gap shrinking or widening in 2026?

The answer: In THE 2026, all eight Hong Kong universities rose, making the city the only territory where the entire cohort improved^※. HKU still leads with 33rd, but the Chinese University of Hong Kong (CUHK) reached a historic high of 41st^※ — the gap between the two has narrowed from more than thirty places some years ago to just 8. This is essential background for judging how secure HKU's lead really is.

Notably, CUHK achieved full marks on five sub-indicators in 2026 — institutional income, research productivity, research income, research excellence and patents — all of which sit inside THE's two heaviest dimensions, "teaching environment" and "research environment". This shows the gap between HKU and CUHK is no fixed moat but a dynamic picture compressed year by year by a same-city rival. The key to HKU holding its lead remains the two slow variables already discussed — teaching reputation and research reputation. Once a competitor closes the gap on the granular indicators, the relative advantage in the reputation surveys becomes the final dividing line.

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# Why is HKU absent from THE's Sustainability Impact Rankings?

The answer: In the 2026 edition of THE's Sustainability Impact Ratings (formerly the THE Impact Rankings)^※, five Hong Kong universities made the global top 100 — HKUST 20th (highest in Hong Kong), PolyU 52nd, Lingnan 63rd, HKBU 68th and CUHK 91st — and HKU does not appear on the list at all. This is one of the rare "HKU absences" in this series of articles on different yardsticks, and it deserves a note of its own.

This ranking scores participating institutions against the UN's 17 Sustainable Development Goals (SDGs) — a set of dimensions entirely different from the main table's teaching-research-internationalisation-industry framework — and, crucially, participation depends on whether an institution voluntarily submits data, unlike the main ranking, where THE includes every institution that meets the threshold. HKU's recent ranking strategy has clearly focused on the main table, the subject tables and the reputation ranking; the sustainability impact list has never been a priority for its data submission. By contrast, CityU took part for the first time in 2026 and immediately claimed a joint world No.1 on SDG 9 (Industry, Innovation and Infrastructure)^※, while Lingnan claimed the top spot on SDG 4 (Quality Education) for the second consecutive year^※. This absence is a reminder that "THE rankings" is not a single number: a university can lead the main table without participating in, let alone leading, every THE sub-ranking. Readers assessing an institution's sustainability performance need to check participation status separately for each sub-ranking. This echoes the core point of Ranking methodologies and criticisms: different rankings measure different things, and the decision to participate is itself an observable choice.

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# How would you explain HKU's THE trajectory to anyone in one sentence?

HKU's decade in the Times Higher Education World University Rankings can be drawn as one arc: up from 43rd in the 2017 edition to 36th in 2019, then to an all-time high of 30th in 2022^※, followed by two brief dips — the pandemic shock of 2021 and the methodology overhaul of 2024 — before recovering to 33rd in the 2026 edition^※. What this yardstick tells us: HKU's internationalisation and research quality are already close to world-leading (96.6 for international outlook, 95.6 for research quality^※). Pushing the overall rank from the 30s into the 20s will come down to steadily accumulating research and teaching reputation — two slow variables that need a sustained international scholarly presence to move — and HKU is already advancing them through rapid growth in its cohort of highly-cited researchers and a continuing international talent strategy.

Further reading: multi-ranking overview World Comprehensive Rankings · QS & U.S. News in depth QS & U.S. News: A Five-Year Deep Dive · full subject tables Subject Rankings · the long view of Asia rankings Lost and Recaptured: The Asia No.1