Harry Mamaysky, Author at QuantStreet Capital

Investing in financial markets involves risks. Investors may lose money. Our investment strategies cannot ensure a profit or protect against loss. There are many factors that affect future risks and returns that we are unable to anticipate. Past performance does not guarantee future results, which may be materially worse.

Forecasting models may do a poor job of describing actual market outcomes and any estimates of expected returns, including efforts to achieve a particular return for a given level of risk, are inherently uncertain and may not be realized. Strategies that are intended to replicate the performance of target-date funds may not achieve this goal and may produce materially worse results.

Articles, commentary, and research materials available on this website are provided for informational and educational purposes only and do not constitute investment or tax advice. Please consult with the appropriate professional before making investing , tax, or legal decisions. See the links below for additional important materials and disclosures.

Author: Harry Mamaysky

October 2026 Update

QuantStreet Performance October 2026

September 2026 Update

QuantStreet Performance September 2026

Investing After a Liquidity Event

Gated: Incentive Stock Option Appendix for “Investing After a Liquidity Event”

August 2026 Update

QuantStreet Performance August 2026

Systemic Risk Scorecard

July 2026 Update