BACK vs XTLB vs NRXP vs ATXI

Over the past 5 years, XTL Biopharmaceuticals Ltd.

(XTLB) delivered a total return of -80. 4%, compared to -100. 0% for Avenue Therapeutics, Inc. (ATXI). Over 10 years, the gap is even starker: XTLB returned -87. 3% versus ATXI's -100. 0%. 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), Avenue Therapeutics, Inc.

(ATXI) is the lower-risk stock at -0. 11β versus NRx Pharmaceuticals, Inc. 's 1. 91β — meaning NRXP is approximately -1837% more volatile than ATXI relative to the S&P 500.

On earnings-per-share growth, the picture is similar: Avenue Therapeutics, Inc.

grew EPS 98. 8% year-over-year, compared to -5. 4% for IMAC 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.

XTL Biopharmaceuticals Ltd.

(XTLB) is the more profitable company, earning -227. 7% net margin versus -125. 5% for IMAC Holdings, Inc. — meaning it keeps -227. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ATXI leads at -279. 8% versus -78. 0% for BACK. At the gross margin level — before operating expenses — ATXI leads at 100. 0%, 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, BACK (100.

0% yield) pays a dividend. XTLB, NRXP, ATXI do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, IMAC Holdings, Inc.

(BACK) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 05), 100. 0% yield). NRx Pharmaceuticals, Inc. (NRXP) carries a higher beta of 1. 91 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (BACK: -100. 0%, NRXP: -96. 8%), 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 Healthcare sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: BACK is a small-cap income-oriented stock; XTLB is a small-cap quality compounder stock; NRXP is a small-cap quality compounder stock; ATXI is a small-cap quality compounder stock. BACK pays a dividend while XTLB, NRXP, ATXI 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.