I believe that anybody who routinely passes judgment on publicly-traded stocks, their managers, and other investors has an obligation to disclose their own performance. My performance numbers are not independently audited and would only be compliant with GIPS through a miracle of coincidence. Nevertheless, it's a sincere effort to accurately record and reflect how my own personal accounts have performed. These are "real money" accounts, not models or paper portfolios.
I should also note that I do not seek the highest total possible returns. My investment/portfolio goal is to achieve market-matching (or market-beating) returns with below-market volatility (as measured by beta). The beta of my combined portfolios has hovered pretty consistently (approx 15 years) around 0.90.
2017
Portfolio A - +34.7%
Portfolio B - +31.0%
Combined portfolios - +33.2%
S&P 500 - +21.8%
Nasdaq - +29.6%
2016
Portfolio A - (2.4)%
Portfolio B - (3.7)%
Combined portfolios - (2.9)%
S&P 500 - +12.0%
Nasdaq - +8.9%
2015
Portfolio A - +8.0%
Portfolio B - (7.5)%
Combined portfolios - +3.9%
S&P 500 - 1.4%
Nasdaq - +7.0%
2014
Portfolio A - +11.6%
Portfolio B - +10.1%
Combined portfolios - +11.1%
S&P 500 - +13.7%
Nasdaq - +14.8%
2013Portfolio A - +34.9%
Portfolio B - +25.7%
Combined portfolios - +31.0%
S&P 500 - +32.4%
Nasdaq - +31.0%
2012
Portfolio A - +27.3%
Portfolio B - +26.8%
Combined portfolios - +27.1%
S&P 500 - +16.0%
Nasdaq - +17.5%
2011
Portfolio A - (2.8%)
Portfolio B - (0.8%)
Combined portfolios - (2.2%)
S&P 500 - (0.0%)
Nasdaq - (1.8%)
2010
Portfolio A - +25.2%
Portfolio B - +19.4%
S&P 500 - +12.8%
Nasdaq - +16.9%
2009
Portfolio A - +29.3%
Portfolio B - +27.5%
S&P 500 - +23.5%
Nasdaq - +43.9%
2008
Portfolio A - (29.0%)
Portfolio B - (25.0%)
S&P 500 - (38.5%)
Nasdaq - (40.5%)
2007
Portfolio A - (7.7%)
Portfolio B - +2.1%
S&P 500 - +3.5%
Nasdaq - +9.8%
2006
Portfolio A - +33.1%
Portfolio B - +42.5%
S&P 500 - +13.6%
Nasdaq - +9.5%
2005
Portfolio A - +9.9%
Portfolio B - +8.6%
S&P 500 - +3.0%
Nasdaq - +1.4%
2004
Portfolio A - +9.0%
Portfolio B - +19.4%
S&P 500 - +9.0%
Nasdaq - +8.6%
2003
Portfolio A - +69.4%
Portfolio B - +40.1%
S&P 500 - +26.4%
Nasdaq - +50.0%
My records prior to 2003 aren't consistent/complete enough for reliable performance numbers.