Start here if you're new
what it is
Rambus sells chip IP and memory technology built over 30+ years.
how it gets paid
Last year Rambus made $708M in revenue.
why it's growing
Revenue grew 27.1% last year. The $517.0M quarter mattered because it was up 190% vs. prior year.
what just happened
Rambus beat again, with $0.58 EPS versus $0.52 expected.
At a glance
B++ balance sheet — above average — nothing keeping you up at night
20/100 earnings predictability — expect surprises
42.0x trailing p/e — you're paying up for this one
25.0% return on capital — every dollar works hard here
xvary composite: 58/100 — below average
What they do
Rambus sells chip IP and memory technology built over 30+ years.
Rambus has 791 employees and $708M in annual revenue. That is a small staff for that much money. You do not swap out memory IP lightly once it sits in your server path, and 79.9% gross margin says customers keep paying.
How they make money
$708M
annual revenue · their business grew +27.1% last year
total revenue
$708M
+27.1%
The products that matter
licenses memory and interface IP
Memory Interface IP
$708M revenue · entire reported business
it's the whole $708M revenue base. That simplicity helps margins, but it also means you do not have another segment stepping in if licensing demand cools.
core engine
DDR5-related demand driver
DDR5 marketshare gains
named driver in 2025 update
DDR5 share gains show up in commentary as demand for memory IP; latest quarter revenue on this page is about $517M— do not mix that with older partial figures.
current catalyst
broader silicon IP portfolio
Silicon IP Portfolio
supporting growth, smaller contributor
management commentary says this portfolio is also performing well, though to a lesser extent. That means the story still runs through the same $708M business rather than a second breakout engine.
secondary
Key numbers
$708M
annual revenue
That is the whole business for a year. For 791 employees, it is a lot of money per person.
41.9%
operating margin
Rambus keeps 41.9 cents of every sales dollar after running the business. That is why a small team can look big.
25.0%
return on capital
For every $1 tied up in the business, Rambus generated $0.25 in operating profit. That is why capital keeps showing up.
42.0x
trailing p/e
You are paying 42 dollars for $1 of trailing earnings. That only works if the next few years stay hot.
Financial health
B++
strength
- balance sheet grade B++ — above average financial health
- risk rank 3 — safer than 50% of stocks
- price stability 20 / 100
- net profit margin 36.3% — keeps 36 cents of every dollar in revenue
- return on equity 26% — $0.26 profit for every $1 investors have put in
B++ — above-average balance sheet vs typical tech names; still watch deal and licensing timing.
Total return vs. market
You invested $10,000 in RMBS 3 years ago → it's now worth $20,710.
The index would have given you $14,540.
source: institutional data · total return
What just happened
beat estimates
Rambus beat again, with $0.58 EPS versus $0.52 expected.
EDGAR shows $517M of latest-quarter revenue and a 79.9% gross margin. Yahoo’s last-earnings line shows $0.58 versus $0.52 expected, so the quarter cleared the bar either way.
$517.0M
quarter revenue
$0.58
eps
79.9%
gross margin
the number that mattered
The $517.0M quarter mattered because it was up 190% vs. prior year, which is the kind of jump that makes a 42.0x multiple less absurd.
-
rambus closed out 2025 with solid financial results.
-
latest reported quarter revenue was up sharply vs. prior year on a reported basis (this page uses ~190% vs the prior-year quarter— confirm in the filing).
-
this was largely a result of ddr5 marketshare gains.this memory technology is broadly recognized for incorporation into critical data center and ai infrastructure. the company is positioned at the intersection of memory bandwidth expansion and artificial intelligence (ai) infrastructure buildout.
-
this augurs well, given that agentic ai is emerging as a major catalyst for server demand.
-
the silicon ip portfolio is also performing well for these reasons, though to a lesser extent.
source: company earnings report, 2026
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What could go wrong
the #1 risk is patent license renewal and pricing pressure with major memory customers.
med
license renewals can reset the economics
Rambus is not selling a broad consumer product lineup. It is monetizing IP. If a major customer pushes back on renewals or pricing, the effect lands directly on the revenue base.
impact: this is a risk to the same $708M revenue stream investors are paying 42.0x trailing earnings for.
med
IP litigation and antitrust history still matter
A licensing-heavy model only works if the company can defend and monetize its patents cleanly. Legal friction can raise costs, slow deals, or weaken negotiating leverage.
impact: pressure on a 38.5% operating-margin model hurts faster than it would in a lower-margin hardware business.
med
DDR5 and AI-server momentum could cool
Recent commentary ties growth to DDR5 share gains and AI infrastructure demand. If that tailwind softens, the growth narrative behind the stock softens with it.
impact: slower demand would make the $800M revenue estimate harder to hit.
med
earnings are less predictable than the margin profile suggests
A 33.5% net margin looks stable. A 20/100 predictability score says otherwise. Timing, renewals, and mix can move reported results around more than the headline margins imply.
impact: even if the business stays profitable, a few uneven quarters can compress a premium multiple.
all $708M of revenue runs through the same licensing-heavy model, so you are not diversified away from the core risk.
source: institutional data · regulatory filings · risk analysis
Pay attention to
catalyst
can revenue get from $708M to $800M
That is the growth bridge implied by current estimates. If it breaks, the multiple probably follows.
calendar
major license renewal timing
This is a contract business. Renewal timing matters almost as much as underlying demand.
trend
DDR5 and server-memory demand
Recent momentum is tied to bandwidth-heavy computing. If that trend holds, Rambus keeps its best growth argument.
risk
20/100 earnings predictability
High margins do not guarantee smooth quarters. Expect noise, and watch how the market reacts to it.
Analyst rankings
short-term outlook
average
momentum score 3 — the stock is trading like a normal name right now, not a consensus favorite.
risk profile
average
stability score 3 — middle of the pack risk. In human-speak: this is not a bunker stock, but it is not chaos either.
chart momentum
top 5%
technical score 1 — the highest rating. in human-speak: the chart has been strong enough that analysts think momentum is on your side.
earnings predictability
20 / 100
results can move around more than the margin profile suggests. That matters when the stock already trades at a premium.
source: institutional data
Institutional activity
institutions have been net buying for 3 consecutive quarters — 204 buyers vs. 188 sellers in 4q2025. total institutional holdings: 98.2M shares. net buying for 3 quarters.
source: institutional data
Price targets
3-5 year target range
$50
$155
$89
current price
$103
target midpoint · +16% from current · 3-5yr high: $150 (+70% · 14% ann'l return)
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