MRX vs VIRT vs HOOD vs IBKR vs MKTX

For growth investors, Robinhood Markets, Inc.

(HOOD) is the stronger pick with 51. 6% revenue growth year-over-year, versus 3. 8% for MarketAxess Holdings Inc. (MKTX). Virtu Financial, Inc. (VIRT) offers the better valuation at 9. 7x trailing P/E (8. 3x forward), making it the more compelling value choice. Analysts rate Marex Group plc Ordinary Shares (MRX) a "Buy" — based on 6 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.

On trailing P/E, Virtu Financial, Inc.

(VIRT) is the cheapest at 9. 7x versus Interactive Brokers Group, Inc. at 37. 7x. On forward P/E, Virtu Financial, Inc. is actually cheaper at 8. 3x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Robinhood Markets, Inc. wins at 0. 16x versus MarketAxess Holdings Inc. 's 3. 03x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Interactive Brokers Group, Inc.

(IBKR) delivered a total return of +386. 1%, compared to -61. 8% for MarketAxess Holdings Inc. (MKTX). Over 10 years, the gap is even starker: IBKR returned +823. 8% versus MKTX's +38. 3%. 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 Robinhood Markets, Inc. 's 3. 05β — meaning HOOD is approximately -1186% more volatile than MKTX relative to the S&P 500. On balance sheet safety, Interactive Brokers Group, Inc. (IBKR) carries a lower debt/equity ratio of 0% versus 8% for Marex Group plc Ordinary Shares — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Robinhood Markets, Inc.

(HOOD) is pulling ahead at 51. 6% versus 3. 8% for MarketAxess Holdings Inc. (MKTX). On earnings-per-share growth, the picture is similar: Virtu Financial, Inc. grew EPS 72. 7% year-over-year, compared to -8. 5% for MarketAxess Holdings 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.

Robinhood Markets, Inc.

(HOOD) is the more profitable company, earning 42. 1% net margin versus 8. 5% for Marex Group plc Ordinary Shares — meaning it keeps 42. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: IBKR leads at 86. 0% versus 32. 0% for MRX. 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.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Robinhood Markets, Inc. (HOOD) is the more undervalued stock at a PEG of 0. 16x versus MarketAxess Holdings Inc. 's 3. 03x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Virtu Financial, Inc. (VIRT) trades at 8. 3x forward P/E versus 40. 5x for Robinhood Markets, Inc. — 32. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for HOOD: 53. 6% to $117. 14.

In this comparison, VIRT (2.

1% yield), MKTX (2. 0% yield), MRX (1. 4% yield), IBKR (0. 4% yield) pay a dividend. HOOD 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). Robinhood Markets, Inc. (HOOD) carries a higher beta of 3. 05 — 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: +38. 3%, HOOD: +119. 1%), 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.

Both stocks operate in the Financial Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: MRX is a small-cap high-growth stock; VIRT is a small-cap high-growth stock; HOOD is a mid-cap high-growth stock; IBKR is a mid-cap quality compounder stock; MKTX is a small-cap quality compounder stock. MRX, VIRT, MKTX pay a dividend while HOOD, IBKR do 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.