NSA vs SST vs AMZN vs PSA

For growth investors, Amazon.

com, Inc. (AMZN) is the stronger pick with 12. 4% revenue growth year-over-year, versus -22. 6% for System1, Inc. (SST). Public Storage (PSA) offers the better valuation at 34. 3x trailing P/E (32. 4x forward), making it the more compelling value choice. Analysts rate System1, Inc. (SST) a "Buy" — based on 4 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, Public Storage (PSA) is the cheapest at 34.

3x versus National Storage Affiliates Trust at 61. 9x. On forward P/E, Public Storage is actually cheaper at 32. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Amazon. com, Inc. wins at 1. 24x versus National Storage Affiliates Trust's 14. 39x — a reasonable growth-adjusted valuation.

Over the past 5 years, Amazon.

com, Inc. (AMZN) delivered a total return of +64. 8%, compared to -96. 1% for System1, Inc. (SST). Over 10 years, the gap is even starker: AMZN returned +697. 8% versus SST's -95. 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), Public Storage (PSA) is the lower-risk stock at 0.

51β versus Amazon. com, Inc. 's 1. 51β — meaning AMZN is approximately 195% more volatile than PSA relative to the S&P 500. On balance sheet safety, Amazon. com, Inc. (AMZN) carries a lower debt/equity ratio of 37% versus 2% for National Storage Affiliates Trust — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Amazon.

com, Inc. (AMZN) is pulling ahead at 12. 4% versus -22. 6% for System1, Inc. (SST). On earnings-per-share growth, the picture is similar: Amazon. com, Inc. grew EPS 29. 7% year-over-year, compared to -677. 6% for System1, Inc.. Over a 3-year CAGR, AMZN leads at 11. 7% annualised revenue growth. 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.

Public Storage (PSA) is the more profitable company, earning 37.

0% net margin versus -24. 6% for System1, Inc. — meaning it keeps 37. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PSA leads at 46. 7% versus -23. 3% for SST. At the gross margin level — before operating expenses — AMZN leads at 50. 3%, 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, Amazon. com, Inc. (AMZN) is the more undervalued stock at a PEG of 1. 24x versus National Storage Affiliates Trust's 14. 39x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Public Storage (PSA) trades at 32. 4x forward P/E versus 82. 3x for National Storage Affiliates Trust — 49. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for SST: 269. 9% to $14. 50.

In this comparison, NSA (5.

3% yield), PSA (4. 2% yield), SST (0. 1% yield) pay a dividend. AMZN does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Public Storage (PSA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

51), 4. 2% yield). Both have compounded well over 10 years (PSA: +56. 8%, SST: -95. 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.

These companies operate in different sectors (NSA (Real Estate) and SST (Industrials) and AMZN (Consumer Cyclical) and PSA (Real Estate)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NSA is a small-cap income-oriented stock; SST is a small-cap quality compounder stock; AMZN is a mega-cap quality compounder stock; PSA is a mid-cap income-oriented stock. NSA, PSA pay a dividend while SST, AMZN 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.