Watermark Consulting Customer Experience ROI Study Explained

Every CFO has heard the pitch: better customer experience means happier customers, and happier customers mean a healthier business. Few have seen it priced into a share. That is the gap Watermark Consulting's Customer Experience ROI Study set out to close, and it is why the study still gets quoted, nearly two decades on, by people who have never read a journey map in their life.

Watermark Consulting's CX ROI Study, created by customer experience consultant Jon Picoult, tracks the stock market performance of publicly traded companies ranked by customer experience quality. Its central finding, reproduced across multiple updates of the analysis, is that firms recognised for superior customer experience have tended to deliver stronger shareholder returns than those recognised for poor experience — turning a soft, often dismissed discipline into a line item a board will actually defend.

That is the headline. The more useful story, and the one most summaries skip, is why the market behaves this way — and what a CX leader should and should not try to replicate from it.

What is Watermark Consulting's CX ROI Study?

The Customer Experience ROI Study, published by Watermark Consulting, sorts companies into groups based on independent customer experience rankings — most notably Forrester's Customer Experience Index, a long-running benchmark that scores large brands on how customers rate their interactions across industries. Watermark then builds hypothetical stock portfolios from the top and bottom performers and tracks how those portfolios move against the broader market over time.

The study's purpose, as Picoult has described it, is deliberately narrow: not to prove that experience causes stock price movement in a laboratory sense, but to show whether a consistent, externally validated measure of experience quality correlates with how investors actually value a business over the long run. That framing matters. It is a market study dressed as a CX study, which is exactly why finance teams listen to it when they tune out Net Promoter Score decks.

How does the study link customer experience to stock performance?

The mechanism is straightforward even if the underlying business behaviour is not. The study does not survey investors about how they feel about a brand's service. It uses an existing, published experience ranking as a sorting variable, then lets public market data do the talking. If the "CX Leaders" basket of stocks and the "CX Laggards" basket diverge over multiple years, the inference is that experience quality is doing something markets reward — even though no single mechanism is being isolated.

This is a correlation study, not a controlled experiment, and Watermark has never claimed otherwise. What makes it durable is repetition: a one-year divergence could be noise, sector mix, or a handful of outlier stocks. A pattern that reappears across repeated updates, through different economic cycles, is harder to wave away as coincidence. That persistence — not any single year's number — is the real evidential weight of the study.

Why would customer experience actually move a share price?

This is the question most commentary skips, and it is where behavioural economics earns its place in the conversation. Markets do not price "friendliness." They price expected future cash flows and the risk attached to them. Customer experience affects both, through mechanisms that are well understood even if rarely connected to a stock ticker.

• Loss aversion compounds in reverse. Daniel Kahneman and Amos Tversky's work on loss aversion shows that people weigh losses roughly twice as heavily as equivalent gains. Applied to service, a single bad resolution can erase the goodwill built by several good ones — which means experience laggards bleed customers faster than their satisfaction scores suggest, showing up later as a revenue surprise the market did not see coming.
• The peak-end rule shapes retention, not just satisfaction. Kahneman's research on retrospective judgement, summarised well by the Nielsen Norman Group, found that people judge an experience largely by its most intense moment and its ending, not its average. Companies that manage the ending of a journey — a smooth cancellation, a fair refund, an apology that lands — retain customers that a pure satisfaction-average metric would have predicted would churn.
• Switching costs and trust reduce earnings volatility. Reliable experience lowers the perceived risk of staying with a brand, which dampens churn spikes. Markets dislike volatility more than they dislike mediocrity; a business with steadier, more predictable revenue typically commands a premium, independent of growth rate.

None of this requires customers to consciously reward "good CX." It requires only that bad experiences push people toward the exit faster than good ones pull them in — a basic asymmetry that eventually surfaces in retention, referral, and cost-to-serve numbers a market is built to price.

What does the study get right — and where should leaders be sceptical?

The study's real contribution is reframing the argument. For years, the business case for customer experience investment rested on internal metrics — NPS, CSAT, CES — that finance teams rightly treat with suspicion because they are self-reported, easy to game, and disconnected from a profit-and-loss statement. Watermark's approach instead anchors the claim to something a CFO already trusts: public market pricing. That is a genuinely useful rhetorical and strategic move, and it is why the study gets cited in board decks far more than any satisfaction survey ever will.

The scepticism should sit elsewhere. A basket of "CX Leaders" is also, inevitably, a basket of well-run companies more broadly — stronger operations, often stronger brands, sometimes simply larger and more resilient firms better equipped to survive a downturn. Good customer experience rarely exists in isolation from good management generally, which makes it difficult to isolate experience as the sole driver of the return gap. The study does not claim to solve that attribution problem, and leaders who cite it should not pretend it does either. The honest claim is narrower and still valuable: experience quality is a reliable marker of a well-run business, and well-run businesses tend to be rewarded by markets over time.

There is a second caution worth naming. Rankings built from a single benchmark reward whatever that benchmark measures. Forrester's Customer Experience Index weighs specific dimensions of interaction quality; a company could improve against those dimensions without improving the underlying service economics that actually drive loyalty. Treat the ranking as a signal, not a scoreboard to optimise for its own sake.

A satisfaction score tells you how customers feel today. A market only pays for what it believes will still be true next year — which is precisely why durable experience quality, not a single good quarter of survey results, is what gets priced in.

What should CX leaders do with this evidence?

Citing the study in a board meeting is the easy part. Building a business case that survives the follow-up questions is harder. The study is most useful as a template for the kind of argument it makes — linking experience quality to a metric finance already respects — rather than as a number to be quoted and left unexamined.

1. Translate experience quality into financial exposure, not sentiment. Identify where friction in the journey correlates with measurable churn, complaint cost, or reduced share of wallet — the same discipline a CX ROI calculator forces by requiring real inputs rather than aspirational ones.
2. Separate leading indicators from lagging ones. Satisfaction scores move quickly and mean little on their own; retention, repeat purchase rate, and referral volume move slowly and mean a great deal. Report both, but weight decisions on the slower, harder metrics.
3. Map the moments that carry disproportionate weight. Given the peak-end rule, invest first in the endings — cancellations, complaints, renewals, offboarding — rather than spreading improvement evenly across a journey where not every touchpoint carries equal emotional weight.
4. Benchmark externally, not just internally. An internal NPS trend tells you if you are improving. An external, industry-wide ranking tells you if you are improving fast enough relative to the competitor a customer will compare you to. A structured CX maturity assessment gives that external anchor without waiting for a third-party index to publish.
5. Tie the roadmap to governance, not goodwill. The firms that sustain an experience advantage over years, the kind that shows up in a multi-year stock study, build it into operating cadence and ownership rather than a single transformation project. That is a CX governance problem as much as a design one.

Is the CX-to-shareholder-value argument still relevant now?

If anything, the argument matters more in 2026 than it did when the study began. Cost pressure has pushed many organisations to strip out service capacity, automate contact channels aggressively, and treat experience spend as the first line to cut when margins tighten. That is precisely the environment in which the gap between experience leaders and laggards tends to widen, because laggards cut further and recover more slowly once customer patience runs out.

Generative AI changes the mechanics of service delivery, but it does not change the underlying behavioural economics. A faster, cheaper resolution that still leaves a customer feeling unheard is still a bad ending, and endings are still what people remember. The organisations most likely to show up on the right side of the next version of this kind of analysis will be the ones using automation to remove friction from the journey, not simply to remove headcount from the budget — a distinction worth making explicit in any transformation plan that touches both digital transformation and customer experience strategy at the same time.

There is also a quieter shift worth naming. A decade ago, the CX-ROI argument had to be imported from outside the business — a third-party study, a market index, a benchmark report. Today, the tools exist to build that evidence internally, continuously, at the level of individual touchpoints rather than company-wide averages. That is a more defensible and more actionable version of the same argument Watermark made with public market data.

What the study ultimately proves

Watermark Consulting's CX ROI Study will keep getting cited for a simple reason: it answers the one question every CX leader is asked and struggles to answer cleanly — does any of this actually matter to the business. The honest answer is not that good service guarantees a rising share price. It is that neglecting experience quality rarely survives contact with a market that eventually notices when customers start leaving quietly, one renewal at a time. The leaders who win the next decade will not be the ones who can quote the study. They will be the ones who built their own version of its evidence, inside their own numbers, long before an analyst asked them to.

Renascence works with executive teams on exactly that translation — turning experience ambition into a governed, measurable programme finance will back. Explore our approach to customer experience strategy or see how behavioural economics can sharpen the business case your board actually reads.