BLBX vs IBKR

For growth investors, Interactive Brokers Group, Inc.

(IBKR) is the stronger pick with 9. 8% revenue growth year-over-year, versus -5. 3% for Blackboxstocks Inc. (BLBX). Interactive Brokers Group, Inc. (IBKR) offers the better valuation at 37. 7x trailing P/E (33. 6x forward), making it the more compelling value choice. Analysts rate Interactive Brokers Group, Inc. (IBKR) a "Buy" — based on 19 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, Interactive Brokers Group, Inc.

(IBKR) delivered a total return of +386. 1%, compared to -7. 2% for Blackboxstocks Inc. (BLBX). Over 10 years, the gap is even starker: IBKR returned +823. 8% 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), Interactive Brokers Group, Inc.

(IBKR) is the lower-risk stock at 1. 93β versus Blackboxstocks Inc. 's 2. 09β — meaning BLBX is approximately 8% more volatile than IBKR relative to the S&P 500. On balance sheet safety, Interactive Brokers Group, Inc. (IBKR) carries a lower debt/equity ratio of 0% versus 4% for Blackboxstocks Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Interactive Brokers Group, Inc.

(IBKR) is pulling ahead at 9. 8% versus -5. 3% for Blackboxstocks Inc. (BLBX). On earnings-per-share growth, the picture is similar: Interactive Brokers Group, Inc. grew EPS 28. 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.

Interactive Brokers Group, Inc.

(IBKR) is the more profitable company, earning 9. 6% net margin versus -182. 1% for Blackboxstocks Inc. — meaning it keeps 9. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: IBKR leads at 86. 0% versus -165. 7% for BLBX. At the gross margin level — before operating expenses — IBKR leads at 89. 8%, 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, IBKR (0.

4% yield) pays a dividend. BLBX does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Interactive Brokers Group, Inc.

(IBKR) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+823. 8% 10Y return). 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 (IBKR: +823. 8%, 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 IBKR (Financial Services)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

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.