SIEB vs MFIN vs TREE vs IBKR

For growth investors, LendingTree, Inc.

(TREE) is the stronger pick with 24. 1% revenue growth year-over-year, versus 9. 8% for Interactive Brokers Group, Inc. (IBKR). LendingTree, Inc. (TREE) offers the better valuation at 3. 7x trailing P/E (7. 1x forward), making it the more compelling value choice. Analysts rate LendingTree, Inc. (TREE) a "Buy" — 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.

On trailing P/E, LendingTree, Inc.

(TREE) is the cheapest at 3. 7x versus Interactive Brokers Group, Inc. at 37. 7x. On forward P/E, LendingTree, Inc. is actually cheaper at 7. 1x.

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

(IBKR) delivered a total return of +386. 1%, compared to -78. 7% for LendingTree, Inc. (TREE). Over 10 years, the gap is even starker: IBKR returned +823. 8% versus TREE's -45. 7%. 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), Medallion Financial Corp.

(MFIN) is the lower-risk stock at 1. 15β versus Interactive Brokers Group, Inc. 's 1. 93β — meaning IBKR is approximately 68% more volatile than MFIN relative to the S&P 500. On balance sheet safety, Interactive Brokers Group, Inc. (IBKR) carries a lower debt/equity ratio of 0% versus 152% for LendingTree, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), LendingTree, Inc.

(TREE) is pulling ahead at 24. 1% versus 9. 8% for Interactive Brokers Group, Inc. (IBKR). On earnings-per-share growth, the picture is similar: LendingTree, Inc. grew EPS 443. 3% year-over-year, compared to 17. 1% for Medallion Financial Corp.. 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.

Siebert Financial Corp.

(SIEB) is the more profitable company, earning 16. 5% net margin versus 9. 6% for Interactive Brokers Group, Inc. — meaning it keeps 16. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: IBKR leads at 86. 0% versus 7. 3% for TREE. At the gross margin level — before operating expenses — MFIN leads at 96. 7%, 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.

On forward earnings alone, LendingTree, Inc.

(TREE) trades at 7. 1x forward P/E versus 33. 6x for Interactive Brokers Group, Inc. — 26. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for TREE: 73. 2% to $69. 00.

In this comparison, MFIN (4.

7% yield), IBKR (0. 4% yield) pay a dividend. SIEB, TREE do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Medallion Financial Corp.

(MFIN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 15), 4. 7% yield). LendingTree, Inc. (TREE) carries a higher beta of 1. 55 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MFIN: +60. 3%, TREE: -45. 7%), 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: SIEB is a small-cap high-growth stock; MFIN is a small-cap high-growth stock; TREE is a small-cap high-growth stock; IBKR is a mid-cap quality compounder stock. MFIN pays a dividend while SIEB, TREE, 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.