BLBX vs MKTX

For growth investors, MarketAxess Holdings Inc.

(MKTX) is the stronger pick with 8. 6% revenue growth year-over-year, versus -5. 3% for Blackboxstocks Inc. (BLBX). MarketAxess Holdings Inc. (MKTX) offers the better valuation at 20. 4x trailing P/E (18. 2x forward), making it the more compelling value choice. Analysts rate MarketAxess Holdings Inc. (MKTX) a "Hold" — based on 23 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

Over the past 5 years, Blackboxstocks Inc.

(BLBX) delivered a total return of -7. 2%, compared to -62. 8% for MarketAxess Holdings Inc. (MKTX). Over 10 years, the gap is even starker: MKTX returned +37. 2% versus BLBX's -92. 4%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), MarketAxess Holdings Inc.

(MKTX) is the lower-risk stock at -0. 28β versus Blackboxstocks Inc. 's 2. 09β — meaning BLBX is approximately -844% more volatile than MKTX relative to the S&P 500. On balance sheet safety, Blackboxstocks Inc. (BLBX) carries a lower debt/equity ratio of 4% versus 5% for MarketAxess Holdings Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), MarketAxess Holdings Inc.

(MKTX) is pulling ahead at 8. 6% versus -5. 3% for Blackboxstocks Inc. (BLBX). On earnings-per-share growth, the picture is similar: MarketAxess Holdings Inc. grew EPS 6. 3% year-over-year, compared to -13. 6% for Blackboxstocks Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

MarketAxess Holdings Inc.

(MKTX) is the more profitable company, earning 33. 6% net margin versus -182. 1% for Blackboxstocks Inc. — meaning it keeps 33. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MKTX leads at 41. 7% versus -165. 7% for BLBX. At the gross margin level — before operating expenses — MKTX leads at 68. 9%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

In this comparison, MKTX (2.

0% yield) pays a dividend. BLBX does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, MarketAxess Holdings Inc.

(MKTX) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 28), 2. 0% yield). Blackboxstocks Inc. (BLBX) carries a higher beta of 2. 09 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MKTX: +37. 2%, BLBX: -92. 4%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (BLBX (Technology) and MKTX (Financial Services)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

MKTX pays a dividend while BLBX does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.