Hotel RevPAR Index: How to Read RGI, MPI and ARI in 2026
Your RevPAR climbed 8 percent last month. The team is pleased. Then the STAR report lands and your Revenue Generation Index has slipped from 103 to 96. Both numbers are true at the same time. You earned more per available room than you did a year ago, and you still lost ground to the hotels across the street, because they grew faster. That gap between how you feel and how you rank is the entire reason the RevPAR index exists. It strips out the rising tide and shows you the only thing that pays the bills in a competitive market: your share. This guide breaks down the three indices, shows the arithmetic most explainers skip, and gives you a way to decide which lever to pull once you have read the number.
Table of Contents
- What the RevPAR Index Actually Measures
- The Three Indices: RGI, MPI and ARI
- Reading the Numbers: A Worked Example
- The Decomposition That Tells You Which Lever to Pull
- The Occupancy Trap: Why a High MPI Can Cost You Money
- Your Comp Set Decides Your Score
- RevPAR Index for Short-Term Rentals
- What the RevPAR Index Doesn’t Tell You
- A 30-Day Plan to Act on Your Index
- Frequently Asked Questions
- Conclusion
What the RevPAR Index Actually Measures
The hotel RevPAR index, reported as the Revenue Generation Index (RGI), answers one question: is your RevPAR beating, matching, or losing to the hotels you compete with? It is your RevPAR divided by the RevPAR of your competitive set, multiplied by 100. An index of 100 is a dead heat. You captured exactly your fair share of the market’s rooms revenue. Above 100 and you are taking more than your share. Below 100 and your competitors are eating into yours, even in a month where your own revenue went up.
Fair share is the anchor concept. If your comp set has five hotels and you are one of six properties competing for the same demand, your fair share of revenue is roughly one sixth. The index normalises that so you do not have to do the fraction in your head. It also removes seasonality and market swings from the picture. When a citywide event lifts every hotel, your raw RevPAR jumps, but if your index holds flat, you simply rode the wave with everyone else. When the market softens and your index climbs, you are gaining share in a shrinking pool, which is the harder and more valuable win. If you want the full vocabulary behind these numbers, our hotel revenue management terminology glossary defines every term in one place.
The Three Indices: RGI, MPI and ARI
RGI never travels alone. The STAR report gives you three indices, and each one isolates a different part of your performance. Read together, they tell you not just whether you are winning, but why.
| Index | Full name | Measures | Formula |
|---|---|---|---|
| MPI | Market Penetration Index | Occupancy share | (Your occupancy / Comp set occupancy) x 100 |
| ARI | Average Rate Index | Rate share | (Your ADR / Comp set ADR) x 100 |
| RGI | Revenue Generation Index | Revenue share | (Your RevPAR / Comp set RevPAR) x 100 |
MPI tells you whether you are filling more or fewer rooms than your neighbours. ARI tells you whether you are charging more or less. RGI blends the two into the bottom line, because rooms revenue is the product of how many rooms you sell and what you sell them for. The clean relationship that ties them together is the one most articles mention in passing and then never use:
RGI = MPI x ARI / 100
That single line is the most useful thing on the report. It means your revenue share is your occupancy share multiplied by your rate share. If you know two of the indices, you know the third. More importantly, it lets you take a mediocre RGI apart and see exactly which half is dragging.
Reading the Numbers: A Worked Example
Numbers make this concrete. Take a 120 room hotel reporting last month against a comp set of five similar properties.
| Metric | Your hotel | Comp set |
|---|---|---|
| Occupancy | 78% | 72% |
| ADR | $185 | $198 |
| RevPAR | $144.30 | $142.56 |
Your RevPAR is occupancy times ADR, so 0.78 x 185 = $144.30. The comp set runs 0.72 x 198 = $142.56. Now the three indices:
- MPI = 78 / 72 x 100 = 108.3. You are filling rooms well above the market.
- ARI = 185 / 198 x 100 = 93.4. Your rate sits about 7 percent under the market.
- RGI = 144.30 / 142.56 x 100 = 101.2. You are barely ahead on revenue.
Check the identity: 108.3 x 93.4 / 100 = 101.2. It holds. Now look at what the single RGI number hid. On revenue you are a nose in front, a result most owners would sign off without a second thought. But the decomposition tells a sharper story. You are winning occupancy by a wide margin and giving back almost all of it in rate. You are the busy hotel that leaves money on the nightstand. A RevPAR index of 101 is not the same quality of 101 as a hotel running MPI 100 and ARI 101, which earns the same share while filling fewer rooms and charging more for each. Same score, very different business.
The Decomposition That Tells You Which Lever to Pull
Once you split RGI into its occupancy half and its rate half, the report stops being a scorecard and becomes a set of instructions. There are four combinations, and each points to a different action.
| MPI | ARI | What it means | The move |
|---|---|---|---|
| High | Low | Buying occupancy with rate. Full house, thin rate. | Push ADR up in steps, accept small occupancy loss. |
| Low | High | Priced above what your demand supports. | Test lower rates or fix distribution and visibility. |
| High | High | Winning on both. Real pricing power. | Hold and protect. Look for the next rate ceiling. |
| Low | Low | Losing on both. A demand or product problem. | Audit comp set, channels, reviews, then reprice. |
The worked example above lands squarely in the first row. High MPI, low ARI, so the instruction is to lift rate and stop subsidising occupancy you already own. The opposite corner, high ARI and low MPI, is the one that trips up proud operators. It can look like discipline, holding rate while the market fills up around you, but if your RGI is under 100 you are holding a rate the market will not pay and forfeiting revenue for the privilege. The index does not care about your positioning story. It cares whether the rate is converting.
This is where a tested framework beats instinct. Deciding how far to move rate against expected occupancy loss is exactly the calculation we walk through in our ADR versus occupancy break-even guide, and the logic is identical whether the roof covers a hotel or a rental. A dynamic pricing strategy that moves rates against live demand is what keeps a healthy index from decaying between reports.
The Occupancy Trap: Why a High MPI Can Cost You Money
A RevPAR index treats a dollar of occupancy and a dollar of rate as identical. Your profit and loss statement does not. Every occupied room carries a variable cost that an empty room does not: housekeeping, laundry, amenities, in-room energy, and the channel commission on however that booking arrived. Call it $40 a night at a typical independent, though it runs higher once you count a full OTA commission. Rate, by contrast, drops to the bottom line almost untouched. Ten extra dollars of ADR is close to ten dollars of profit. Ten extra dollars of RevPAR bought through occupancy is ten dollars minus the cost of cleaning and servicing the room that produced it.
Return to the 120 room hotel. It runs six occupancy points above its comp set. Over a 30 day month that is 120 rooms x 30 nights x 0.06 = 216 extra occupied room nights, and at $40 of variable cost each, roughly $8,640 in extra spend to hold an RGI barely above 100. The competitor earning the same revenue share at a higher rate and lower occupancy spends none of it.
Now play the other lever. Suppose you lift ADR from $185 to $195, still a dollar under comp parity. The rate increase is 10 / 185, about 5.4 percent. The break-even occupancy loss, the point where RevPAR stays flat, is 0.054 / 1.054, about 5.1 percent. So occupancy could fall from 78 percent to roughly 74 percent and your RevPAR would not move: 0.74 x 195 = $144.30, the same figure as before. But you would be selling about 144 fewer room nights that month, saving close to $5,760 in variable cost, and your ARI would climb from 93 to 98.5. Identical top line, meaningfully more profit, and a stronger rate position going into the next period. That is the trade the raw index will never show you, and it is why RevPAR share should always be read next to what it costs to produce. Our guide to total revenue management for hotels takes this further into profit per available room.
Your Comp Set Decides Your Score
Here is the uncomfortable part. Your RevPAR index is only as honest as the hotels you measure against, and you have a hand in choosing them. Change the comp set and the same month produces a completely different verdict. Take our hotel, unchanged at $144.30 RevPAR, and drop it into three different comp sets.
| Comp set | Comp RevPAR | Your RGI | Verdict |
|---|---|---|---|
| A: true peers | $142.56 | 101.2 | Fair fight, slight win |
| B: aspirational (two upscale hotels) | $157.50 | 91.6 | Looks like you are losing |
| C: flattering (weaker hotels) | $116.96 | 123.4 | Looks like you are crushing it |
Same hotel, same performance, an RGI that swings from 92 to 123 on nothing but the choice of neighbours. Comp set B stacks in two higher rated properties running $225 ADR, and suddenly a solid month reads as underperformance. Comp set C swaps in tired hotels at $172 and 68 percent occupancy, and now you are a market leader on paper. Neither number is useful. One will scare you into cutting rate you did not need to cut. The other will lull you into missing rate you could have taken.
A comp set earns its place by competing for the same guest at the same time. Use this checklist before you trust a single index reading:
- Four to eight hotels, enough to smooth out noise without diluting relevance.
- Similar room count, service level, and star rating, not an aspirational tier above you.
- Genuine location overlap, measured by where your guests actually shop, not just a radius on a map.
- No hotels chosen because they flatter you, and none chosen because they intimidate you.
- Reviewed at least twice a year, because new supply opens, properties renovate, and rentals enter the mix.
Getting this wrong is the most common benchmarking error in the industry, and it quietly corrupts every decision downstream. If your distribution is part of the story, our work on hotel channel mix strategy shows how the same share thinking applies to where your bookings come from.
RevPAR Index for Short-Term Rentals
Airbnb and Vrbo operators do not receive a STAR report, but the logic transfers cleanly and the index is arguably more important for a rental, where a single property has nowhere to hide. You build an informal RevPAR index by comparing your own RevPAR, occupancy times ADR across your available nights, against a tight comp set of genuinely similar listings in your submarket. Market data platforms such as AirDNA supply the comp side, tracking occupancy and ADR across millions of active listings so you can approximate the fair-share benchmark a hotel gets for free.
The discipline is the same. Do not benchmark a two bedroom cabin against studios, and do not compare a professionally managed listing against neglected ones to feel good. The value is identical too: a rental RevPAR index tells you whether a soft month is you or the whole market. If your revenue dips 10 percent but your local market dipped 15, you gained share and your pricing is working. The terms carry over almost one for one, which we lay out in the Airbnb revenue management glossary.
What the RevPAR Index Doesn’t Tell You
The index is a share metric, and share is not profit. RGI measures rooms revenue against your comp set and stops there. It says nothing about what that revenue cost to produce, and nothing about the money a guest spends once they are through the door. At a full service property, food and beverage, spa, parking, and other ancillary income can run 30 to 40 percent of total revenue, none of which touches your RevPAR index. A hotel can post a flattering RGI while its operating profit bleeds, if it is buying that revenue share with commission-heavy channels and deep discounts.
This is why the smarter operators read RGI alongside GOPPAR, gross operating profit per available room, which measures profit rather than top line. RGI tells you whether you are winning the rooms revenue race. GOPPAR tells you whether winning it was worth it. Use the index to diagnose position and the profit metrics to sanity check the strategy. One without the other is how hotels end up busy and broke at the same time.
A 30-Day Plan to Act on Your Index
Reading the number is half the job. Here is how to turn a monthly RGI into action.
- Week 1. Audit your comp set against the checklist above. If it is stale or self-serving, fix it before you trust another report.
- Week 2. Decompose the last three months of RGI into MPI and ARI. Find your quadrant and confirm whether rate or occupancy is the drag.
- Week 3. If ARI is the weak half, run the break-even math and lift rate in controlled steps on your strongest demand dates first. If MPI is the weak half, look at visibility, distribution, and review scores before touching price.
- Week 4. Set a standing cadence. Read the index weekly on forward pace, not just monthly in the rear view, so you are correcting a soft period while you can still sell into it.
None of this requires new software. It requires reading the report the way it was built to be read, share first, then decomposed, then priced. That is the discipline a professional revenue manager brings, and it is precisely what our outsourced revenue management service is built around.
Frequently Asked Questions
What is a good RevPAR index for a hotel?
Any RGI above 100 means you are capturing more than your fair share of your comp set’s rooms revenue. Above 110 is strong and signals real pricing power. But the score is only meaningful against an honest comp set, so validate the peer group before you celebrate or panic over the number.
What does an RGI below 100 mean?
It means your competitors are earning more revenue per available room than you are, even if your own RevPAR grew. You are losing market share. Decompose it into MPI and ARI to see whether the problem is occupancy, rate, or both, then act on the weaker half.
How is RGI different from RevPAR?
RevPAR is your own revenue per available room in dollars. RGI is that same figure expressed as a share of your comp set, indexed to 100. RevPAR can rise while RGI falls, which happens whenever the market grows faster than you do. RevPAR is the raw number, RGI is the competitive verdict.
Can I calculate a RevPAR index without a STAR report?
Yes. Divide your RevPAR by the average RevPAR of a comp set you assemble yourself, then multiply by 100. Hotels usually buy comp data through a benchmarking report, while short-term rental operators build the comp side from market data platforms. The formula does not change.
How often should I review my RevPAR index?
Read it monthly at minimum for a trailing view, and ideally weekly on forward booking pace so you can correct a soft stretch before it arrives. Review the comp set itself at least twice a year, because new supply and renovations shift who your real competitors are.
Why does my RevPAR index change when I change my comp set?
Because the index is entirely relative. Add stronger hotels and your score drops, add weaker ones and it rises, all without your own performance moving an inch. That is exactly why comp set selection is the most consequential and most abused choice in benchmarking.
Conclusion
The RevPAR index is the closest thing hospitality has to an honest mirror. It ignores the flattering rise of a busy season and asks the only question that matters in a competitive market: are you winning share or just riding it. Read RGI first to see where you stand, split it into MPI and ARI to see why, and check both against what the revenue actually cost before you call a good index a good month. The hotels that treat the index as instructions rather than a report card are the ones that quietly take share year after year.
If your indices are telling a story you cannot fully read, or you suspect your comp set is hiding as much as it reveals, that is exactly the kind of problem a dedicated revenue partner solves fast. Talk to Revenuenaire and we will show you what your numbers are really saying.
