The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Block is the larger company, worth $46.7B, close to Zscaler's $43.2B.
  • Zscaler grew revenue faster over the last year (+24.9% vs +9.3%).
  • Block keeps more of each dollar of revenue as operating profit (4.7% vs -4.0%).
  • Zscaler's price assumes faster free cash flow growth: about 18% a year, against 5% for Block (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureXYZZS
Market cap$46.7B$43.2B
Share price$77.24$233.73
Revenue (last fiscal year)$24.2B$3.4B
Free cash flow (last fiscal year)$2.4B$779M
Revenue growth, last year+9.3%+24.9%
Revenue growth per year, last 5 fiscal years+8.2%+32.4%
Operating margin4.7%-4.0%
Net margin1.4%-1.9%
Return on equity1.6%-2.4%
P/E (trailing)61.3x—
Price / free cash flow19.3x59.5x
EV / EBITDA38.1x174.0x
FCF growth the price implies4.5%18.4%
Dividend yield——
Debt / equity0.78x2.03x
Fundamental gradeDD
Superinvestors holding it73
Insider purchases, last 12 months00

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Block

YearRevenueFree cash flowOp. margin
2021$17.7B$714M0.91%
2022$17.5B$5M-3.6%
2023$21.9B-$50M-1.3%
2024$24.1B$1.6B3.7%
2025$24.2B$2.4B7.1%

Zscaler

YearRevenueFree cash flowOp. margin
2022$1.1B$231M-30.0%
2023$1.6B$334M-14.5%
2024$2.2B$585M-5.6%
2025$2.7B$727M-4.8%
2026$3.4B$779M-4.0%

Where the revenue comes from

Block · by segments, 2025

Cash App$15.4B65%
Square$8.5B35%

Zscaler · by regions, 2019

United States$149M49%
Europe, Middle East and Africa$124M41%
Asia Pacific$24M8%
Other$6M2%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open XYZ in Investingly

Questions

Which is bigger, Block or Zscaler?

Block (XYZ), at $46.7B against $43.2B.

Which grows faster, XYZ or ZS?

Zscaler: revenue grew +24.9% over the last year, against +9.3%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.