Inception: December 23, 2025 | Last Updated: January 5, 2026
⚠️ LEGAL DISCLAIMER
This page documents ONE INDIVIDUAL'S personal investment account for educational purposes only. This is NOT investment advice, NOT an offer to manage money, NOT a solicitation for advisory services. The author is NOT a registered investment advisor. Performance data has not been independently verified. Do NOT make investment decisions based on this content. Past performance does not predict future results. All investing involves risk of total loss.
Inception Date: December 23, 2025
Track Record Length: 10 trading days (as of January 2, 2026)
Current Position: RBRK (Rubrik, Inc.)
Entry Price: $67.51 (December 23, 2025)
Current Price: $75.47 (January 2, 2026 close)
Position Return: +11.8% (partial month)
Why Starting Now: Track record begins December 2025 with first RBRK purchase at $67.51. All future performance will be calculated from this baseline. Earlier research and framework development (2024) documented separately but not included in performance tracking.
| Month | Portfolio Return | S&P 500 Return | Outperformance | Notes |
|---|---|---|---|---|
| Dec 2025 | +11.8%* | +2.4%* | +9.4% | Partial month (Dec 23-31, 2025). RBRK entry at $67.51, ended year at $76.48 |
| *December returns are partial month (Dec 23-31, 2025 only). Portfolio return: $67.51 → $75.47 = +11.8%. S&P 500 (SPY) return Dec 23-31: ~+2.4% (estimated from +16.4% full year 2025). First full month reporting begins February 2026. | ||||
| First full month: January 2026 (update posted February 7, 2026) | ||||
All returns calculated using industry-standard time-weighted return methodology, which removes the impact of cash deposits/withdrawals to isolate investment decision performance.
Monthly Return Formula:
Return = (Ending Portfolio Value / Beginning Portfolio Value) - 1
Example: If portfolio starts month at $10,000 and ends at $11,500:
Return = ($11,500 / $10,000) - 1 = 0.15 = +15%
S&P 500 returns calculated using SPY ETF total return (includes dividends), using the same time-weighted methodology for apples-to-apples comparison.
Rubrik, Inc.
Portfolio Allocation: RBRK represents concentrated position in dedicated track record account. Remaining allocation held in FDRXX/SPAXX money market funds at 3.69% yield for defensive positioning and future deployment opportunities.
All performance data derived directly from Fidelity brokerage statements. Monthly statements showing beginning balance, ending balance, and all transactions are maintained and available for verification upon reasonable request.
Frequency: Monthly, updated within 5 business days of month-end
Next Update: February 7, 2026 (January 2026 performance)
Timing: Always first Friday of the month
Why Monthly (Not Daily): Long-term investing requires long-term perspective. Monthly updates reduce noise, prevent emotional decision-making, and focus on business fundamentals rather than daily price fluctuations. Daily/weekly tracking creates false precision and encourages harmful trading behavior.
Track Record Maturity Requirements
1 month: Meaningless noise
6 months: Still not meaningful
12 months: Barely worth mentioning
3 years: Minimum for evaluation
5 years: Professional standard
10 years: Statistically meaningful
This track record will not be meaningful until at least December 2028 (3 years from inception). Everything before then is experimental documentation, not evidence of skill.
This track record is published for three reasons:
What This Is NOT: This is NOT marketing for investment services, NOT solicitation for capital, NOT a recommendation to invest similarly. This is personal documentation shared for educational transparency only.
Each month (first Friday), this page will be updated with:
Complete Legal Disclosure: This page documents ONE INDIVIDUAL'S personal investment portfolio for educational purposes only. This is NOT investment advice, NOT investment research, NOT an offer to manage money, and NOT a solicitation for advisory services. The author is NOT a registered investment advisor and does NOT provide investment advisory services. All positions and analysis represent subjective personal opinions that may be incorrect. The author has financial interest in securities mentioned and may buy/sell at any time. Performance data represents one personal account and has not been independently verified. Past performance does not predict future results. All investing involves substantial risk including total loss. DO NOT make investment decisions based on this content—consult a licensed financial professional.