Bill Bernstein Coward's Portfolio: Rebalancing Strategy

Data Source: from January 1976 to November 2024
Consolidated Returns as of 30 November 2024

Managing the Bill Bernstein Coward's Portfolio with a yearly rebalancing, you would have obtained a 9.64% compound annual return in the last 30 Years.

With a quarterly rebalancing, over the same period, the return would have been 7.32%.

How do returns and drawdowns change, implementing different rebalancing strategies?

Rebalancing Strategies

In order to keep risk under control, you should rebalance assets quotes from time to time, so to keep them at the original percentage of the asset allocation.

Rebalancing can be performed in several ways.

At fixed time intervals:
  • Yearly: Jan 1st
  • Half Yearly: Jan 1st, Jul 1st
  • Quarterly: Jan 1st, Apr 1st, Jul 1st, Oct 1st
When a component (at least one) diverges from its original weight beyond a certain threshold (e.g. 5% or 10%).

Portfolio Returns as of Nov 30, 2024

Implementing different rebalancing strategies, the Bill Bernstein Coward's Portfolio guaranteed the following returns.

According to the available data source, we assume we built the portfolio on January 1976.

Portfolio returns are calculated in USD, assuming:
  • No fees or capital gain taxes
  • the reinvestment of dividends, if existing
BILL BERNSTEIN COWARD'S PORTFOLIO RETURNS
Period: January 1976 - November 2024
Annualized Returns
Swipe left to see all data
Return (%) and number of rebalances as of Nov 30, 2024
Rebalancing Strategy 1Y 5Y 10Y 30Y MAX
(~49Y)
No Rebalancing 29.41 (0) 10.39 (0) 9.25 (0) 9.64 (0) 11.36 (0)
Yearly Rebalancing 17.59 (1) 6.85 (5) 6.22 (10) 7.45 (30) 9.76 (49)
Half Yearly Rebalancing 17.57 (2) 7.00 (10) 6.27 (20) 7.32 (60) 9.63 (98)
Quarterly Rebalancing 17.55 (4) 7.24 (20) 6.39 (40) 7.42 (120) 9.67 (196)
5% Tolerance per asset 18.41 (0) 7.40 (3) 6.54 (5) 7.50 (16) 9.73 (23)
10% Tolerance per asset 18.70 (0) 7.16 (1) 6.39 (2) 7.53 (6) 9.83 (8)

In order to have complete information about the portfolio, please refer to the Bill Bernstein Coward's Portfolio: ETF allocation and returns page.

Performances as of Nov 30, 2024

Historical returns and stats of Bill Bernstein Coward's Portfolio, after implementing different rebalancing strategies.

BILL BERNSTEIN COWARD'S PORTFOLIO PERFORMANCES
Period: January 1976 - November 2024
Swipe left to see all data
Standard Deviation
Max Drawdown (%)
Rebalancing Strategy Return % Std Dev(%) Ret. / Std Dev MaxDD(%) Ret. / MaxDD
No Rebalancing 11.36 (0) 13.93 0.82 -49.73 0.23
Yearly Rebalancing 9.76 (49) 9.25 1.06 -32.68 0.30
Half Yearly Rebalancing 9.63 (98) 9.24 1.04 -33.42 0.29
Quarterly Rebalancing 9.67 (196) 9.26 1.04 -33.78 0.29
5% Tolerance per asset 9.73 (23) 9.37 1.04 -33.80 0.29
10% Tolerance per asset 9.83 (8) 9.68 1.02 -33.43 0.29
(*) Since Jan 1976 (~49 yrs) | Annualized Returns (and number of rebalances)

Drawdowns as of Nov 30, 2024

Historical Drawdowns of Bill Bernstein Coward's Portfolio, after implementing different rebalancing strategies.

BILL BERNSTEIN COWARD'S PORTFOLIO DRAWDOWNS
Period: January 1976 - November 2024
Swipe left to see all data
Rebalancing
Tolerance per asset
No Rebalancing Yearly Half Yearly Quarterly 5% 10%
-49.73
Jun 2007 - Apr 2011
-32.68
Nov 2007 - Dec 2010
-33.42
Nov 2007 - Dec 2010
-33.78
Nov 2007 - Dec 2010
-33.80
Nov 2007 - Dec 2010
-33.43
Nov 2007 - Dec 2010
-29.30
Jan 2020 - Nov 2020
-16.51
Sep 1987 - Jan 1989
-16.09
Jan 2022 - Feb 2024
-16.16
Jan 2022 - Dec 2023
-16.41
Jan 2022 - Feb 2024
-16.59
Jan 2020 - Nov 2020
-22.06
May 2002 - Oct 2003
-15.87
Jan 2022 - Feb 2024
-15.78
Sep 1987 - Dec 1988
-15.30
Sep 1987 - Dec 1988
-15.82
Sep 1987 - Jan 1989
-16.55
Jan 2022 - Feb 2024
-21.33
Jan 2022 - Feb 2024
-14.45
Jan 2020 - Nov 2020
-14.45
Jan 2020 - Nov 2020
-14.45
Jan 2020 - Aug 2020
-14.69
Jan 2020 - Aug 2020
-15.82
Sep 1987 - Jan 1989
-20.48
Sep 1987 - Jan 1989
-12.22
May 2011 - Mar 2012
-12.72
Feb 2001 - Aug 2003
-12.09
Feb 2001 - Jul 2003
-12.63
Apr 2002 - Aug 2003
-14.43
Feb 2001 - Oct 2003
5 Worst Drawdowns - Average
-28.58 -18.35 -18.49 -18.35 -18.67 -19.36
10 Worst Drawdowns - Average
-23.04 -14.25 -14.31 -14.22 -14.51 -14.97

For a deeper insight, please refer to the Bill Bernstein Coward's Portfolio: ETF allocation and returns page.