COE vs RNG vs ZM Stock Comparison

51Talk Online Education, RingCentral and Zoom Communications Prices as of Oct 28, 2026 Peers: Industry group
RNG RingCentral, Inc.
$86.27 +13.4% 1M +183.0% 1Y
Market cap
$7.29B
P/E
10.9x
Revenue (TTM)
$2.62B
Div. yield
0.31%
Communications Platforms Technology
1 win
ZM Zoom Communications, Inc.
$100.26 +14.8% 1M +18.1% 1Y
Market cap
$29.31B
P/E
9.2x
Revenue (TTM)
$4.97B
Div. yield
–
Communications Platforms Technology
6 wins

Head to Head

9 decided of 12

Zoom Communications leads on 6 of the 12 questions below (Zoom Communications 6, 51Talk Online Education 2, RingCentral 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCOERNGZMLeader
Larger companyMarket capitalisation $276.95M $7.29B $29.31B ZM
Cheaper on earningsLower P/E, profitable companies only -16.1x 10.9x 9.2x ZM
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 16.3x 15.5x ZM
Faster revenue growthRevenue growth, trailing twelve months +74.9% +5.5% +4.6% COE
More profitableNet margin, trailing twelve months -14.1% 25.3% 64.1% ZM
Better return on capitalReturn on invested capital — 26.1% — –
Less leveragedLower net debt / EBITDA — 1.5x — –
Higher dividend yieldTrailing dividend yield 0.00% 0.31% — –
Better 1-year returnPrice return, last 12 months -76.6% +183.0% +18.1% RNG
Better 5-year returnAnnualised price return, 5 years +4.5%/yr -18.8%/yr -18.3%/yr COE
Less volatileAnnualised volatility, 1 year 72.2% 67.6% 44.8% ZM
Higher overall scoreMean of the five percentile scores vs peers 44/100 59/100 79/100 ZM

Percentile Scorecard

COERNGZM

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisCOERNGZM
Valuation 49 #46 of 89 71 #9 of 29 68 #10 of 29
Growth 63 #31 of 81 65 #10 of 27 69 #9 of 27
Profitability 52 #37 of 76 76 #7 of 26 84 #5 of 26
Financial Health 12 #83 of 94 20 #25 of 31 97 #2 of 31
Shareholder Returns – 63 #7 of 17 –
Overall 44 59 79
  • COE ranked among 98 companies in Vertical Software
  • RNG ranked among 32 companies in Workplace Software
  • ZM ranked among 32 companies in Workplace Software

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodCOERNGZMSPY
1 month -1.7%+13.4%+14.8% +0.9%
3 months -29.9%+49.8%+8.5% +5.9%
6 months -58.7%+114.7%+4.7% +8.5%
Year to date -63.8%+198.7%+16.2% +13.3%
1 year -76.6%+183.0%+18.1% +12.4%
3 years +44.6%+241.0%+69.1% +88.1%
3 years, per year +13.1%+50.6%+19.2% +23.5%
5 years +24.7%-64.6%-63.5% +68.2%
5 years, per year +4.5%-18.8%-18.3% +11.0%
10 years -83.8%+327.1%— +263.4%
10 years, per year -16.6%+15.6%— +13.8%

Risk

MeasureCOERNGZMSPY
Volatility, 1Y 72.2%67.6%44.8% 12.7%
Downside volatility, 1Y 76.0%55.7%42.6% 12.7%
Beta vs S&P 500, 1Y 0.861.131.03 1.00
Return / volatility, 1Y -1.062.710.40 0.98
Max drawdown, 5Y -82.0%-92.4%-80.6% -25.4%
From 52-week high -76.6%-0.1%-10.4% -0.9%
52-week high $49.50$86.35$111.88 $779.14
52-week low $10.01$24.82$72.72 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleCOERNGZM
P/E now vs peer median -16.1xmedian 40.6x 10.9xmedian 31.0x 9.2xmedian 31.0x
P/S now vs peer median 2.3xmedian 2.4x 2.8xmedian 2.5x 5.9xmedian 2.5x
EV/EBITDA now vs peer median —median 18.3x 14.1xmedian 11.2x 14.4xmedian 11.2x
P/FCF now vs peer median —median 20.5x 10.9xmedian 15.6x —median 15.6x
P/B now vs peer median -7.5xmedian 1.8x -588.2xmedian 3.2x 2.6xmedian 3.2x
PEG now vs peer median 1.01median 1.74 0.20median 0.74 0.05median 0.74

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsCOERNGZM
Revenue $120.53M $2.62B $4.97B
Gross profit $88.35M $1.89B $3.84B
Operating income -$13.29M $196.64M $1.20B
Net income -$11.57M $662.40M $3.19B
Free cash flow – $667.24M –
R&D $7.56M $330.14M $881.96M
EPS (diluted) $-0.72 $7.55 $10.64
Cash & equivalents $39.98M $110.12M $931.99M
Total debt – $1.01B –
Shares (diluted) 23.67M 87.69M 299.75M
Enterprise value $140.38M $6.81B -$1.48B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricCOERNGZM
P/E -16.1x 10.9x 9.2x
P/FCF – 10.9x –
P/Operating cash flow – 10.4x –
P/S 2.3x 2.8x 5.9x
P/B -7.5x -588.2x 2.6x
P/Tangible book -7.5x -129.2x 2.6x
EV/EBITDA – 14.1x 14.4x
EV/EBIT -17.8x 41.6x 18.4x
EV/Revenue 2.0x 3.1x 4.4x
EV/FCF – 12.3x –
EV/Operating cash flow – 11.7x –
PEG (3Y EPS CAGR) 1.01 0.20 0.05

Growth

14 metrics
MetricCOERNGZM
Revenue growth (1Y) 74.9% 5.5% 4.6%
Revenue CAGR (3Y) 77.8% 6.7% 3.7%
Gross profit growth (1Y) 67.1% 7.0% 5.7%
Gross profit CAGR (3Y) 73.8% 8.0% 4.5%
Operating income growth (1Y) -110.8% 109.8% 23.2%
Operating income CAGR (3Y) -9.0% 35.4% 112.9%
Net income growth (1Y) -114.9% 4,905% 168.3%
Net income CAGR (3Y) 35.6% 53.9% 182.3%
EPS growth (1Y) -132.4% 5,149% 175.9%
EPS CAGR (3Y) -16.0% 55.7% 184.2%
Operating cash flow growth (1Y) – 16.3% –
Operating cash flow CAGR (3Y) – 29.1% –
Free cash flow growth (1Y) – 16.5% –
Free cash flow CAGR (3Y) – 30.7% –

Profitability

14 metrics
MetricCOERNGZM
Gross margin 73.3% 72.2% 77.2%
EBITDA margin – 22.2% 30.9%
Operating margin -11.0% 7.5% 24.1%
Pretax margin -12.5% 5.0% 82.5%
Net margin -14.1% 25.3% 64.1%
FCF margin – 25.5% –
Operating cash flow margin – 26.7% –
Return on equity – – 30.2%
Return on assets -17.1% 40.7% 25.0%
Return on invested capital – 26.1% –
Return on capital employed – 20.7% 11.2%
Asset turnover 1.8x 1.6x 0.4x
Cash conversion (OCF / net income) – 1.1x –
Stock comp / revenue – 9.2% –

Financial Health

11 metrics
MetricCOERNGZM
Debt / assets – 53.9% –
Debt / equity – -81.6x –
Net debt / EBITDA – 1.5x –
Debt / FCF – 1.5x –
Liabilities / assets 153.1% 100.7% 16.8%
Equity / assets -53.1% -0.7% 83.2%
Interest coverage – 3.1x –
Current ratio 0.6x 1.1x 3.8x
Quick ratio 0.4x 0.9x 3.7x
Cash ratio 0.4x 0.2x 3.4x
Altman Z-score – 3.27 9.68

Shareholder Returns

7 metrics
MetricCOERNGZM
Dividend yield – 0.3% –
Net buyback yield – 4.4% –
Shareholder yield 0.0% 4.7% –
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusCOERNGZM
Forward P/E – 16.3xFY2026 15.5xFY2026
EPS, next fiscal year $-0.06FY2027 $5.28FY2026 $6.45FY2026
EPS growth, next FY – +21.1%FY2026 +9.0%FY2026
EPS growth, the year after – +0.6% +2.8%
Revenue, next fiscal year $179.19MFY2026 $2.76BFY2026 $4.76BFY2026
Revenue growth, next FY +89.7%FY2026 +9.7%FY2026 -2.4%FY2026
Revenue growth, the year after +56.9% -3.9% +8.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCOERNGZM
Held by institutions – 100.0% 67.2%
Institutions holding – 379 862
Change in shares held, QoQ – +2.0% +2.9%
Institutions buying – 212 477
Institutions selling – 121 279
Buyers to sellers – 1.75 1.71

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

COERNGZM
COE 1.00 0.14 0.12
RNG 0.14 1.00 0.50
ZM 0.12 0.50 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, COE, RNG and ZM?

Zoom Communications (ZM) is the largest by market capitalisation: 51Talk Online Education (COE) $276.95M, RingCentral (RNG) $7.29B, Zoom Communications (ZM) $29.31B.

Which stock is cheaper, COE, RNG and ZM?

Zoom Communications (ZM) trades on the lowest price-to-earnings ratio (51Talk Online Education (COE) -16.1x, RingCentral (RNG) 10.9x, Zoom Communications (ZM) 9.2x). On next year's consensus earnings, Zoom Communications (ZM) is cheapest (RingCentral (RNG) 16.3x, Zoom Communications (ZM) 15.5x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

51Talk Online Education (COE) grew revenue fastest over the trailing twelve months: 51Talk Online Education (COE) +74.9%, RingCentral (RNG) +5.5%, Zoom Communications (ZM) +4.6%.

Which company is more profitable?

Zoom Communications (ZM) has the highest net margin (51Talk Online Education (COE) -14.1%, RingCentral (RNG) 25.3%, Zoom Communications (ZM) 64.1%).

Which stock has performed better?

Over the past year RingCentral (RNG) returned the most: 51Talk Online Education (COE) -76.6%, RingCentral (RNG) +183.0%, Zoom Communications (ZM) +18.1%. Over five years, 51Talk Online Education (COE) compounded fastest (51Talk Online Education (COE) +4.5%/yr, RingCentral (RNG) -18.8%/yr, Zoom Communications (ZM) -18.3%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: 51Talk Online Education (COE) 0.00%, RingCentral (RNG) 0.31%. 51Talk Online Education (COE) and Zoom Communications (ZM) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Zoom Communications (ZM) has been the steadiest (51Talk Online Education (COE) 72.2%, RingCentral (RNG) 67.6%, Zoom Communications (ZM) 44.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, COE, RNG and ZM?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Zoom Communications (ZM) leads on 6. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.