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Symphonies
Warren Buffett
Today’s Change
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A symphony is an automated trading strategy — Learn more about symphonies here

About

Half in Berkshire Hathaway (BRK/B), half in a 90/10 stock‑bond mix using SPY (S&P 500) and VGSH (short‑term Treasuries). Daily rebalanced. Aggressive, U.S.-focused, with a small bond buffer and a sizable Berkshire tilt.
NutHow it works
It splits your money into two equal buckets and rebalances daily. Bucket 1: Berkshire Hathaway stock (BRK/B). Bucket 2: a 90/10 mix—90% SPY (tracks the S&P 500) and 10% VGSH (short‑term U.S. Treasury bonds). Net weights: 50% BRK/B, 45% SPY, 5% VGSH. Mostly U.S. large caps, with a small Treasury cushion.
CheckmarkValue prop
A Berkshire-tilt strategy (BRK/B 50%, SPY 45%, VGSH 5%) with daily rebalance reduces downside: oos max drawdown 9.6% vs 18.8% for SPY, oos Calmar ~0.70, and beta ~0.68. A resilient, US-focused core with Berkshire discipline.
1M
3M
6M
YTD
1Y
3Y
Max
www.composer.trade
Performance
Compared to selected benchmarks
AlphaBetaR2R
SPY
0.010.880.850.92
Performance Metrics
Cumulative ReturnAnnualized ReturnTrailing 1M ReturnTrailing 3M ReturnSharpe Ratio
SPY
711.21%13.72%-1.77%0.2%0.84
Warren Buffett
620.46%12.9%-1.82%-0.93%0.83
Initial Investment
$10,000.00
Final Value
$72,045.90
Regulatory Fees
$81.91
Total Slippage
$66.50
Invest in this strategy
OOS Start Date
Feb 17, 2025
Trading Setting
Daily
Type
Stocks
Category
Us equities, berkshire tilt, s&p 500, short-term treasuries, concentrated, daily rebalance
Tickers in this symphonyThis symphony trades 3 assets in total
Ticker
Type
BRK/B
BERKSHIRE HATHAWAY Class B
Stocks
SPY
State Street SPDR S&P 500 ETF Trust
Stocks
VGSH
Vanguard Short-Term Treasury ETF
Stocks

FAQ

A Composer symphony is an automated trading strategy that executes trades based on parameters of your choice. Some symphonies are similar to holding one ETF in normal conditions and rotating to a different ETF when market conditions shift, for example a 5% drop in the S&P 500, while others use complex rules with dozens of triggers. However, complex doesn’t always mean better. A simple, well-structured symphony can be just as effective as an intricate one. Learn more about how symphonies work here.

"Warren Buffett" is currently performing the same as yesterday today. Performance updates in real time during market hours.

"Warren Buffett" is currently allocated toSPY, VGSHandBRK/B. Holdings automatically adjust as market conditions change based on the strategy's rules.

Year-to-date, "Warren Buffett" has returned 6.08%. You can adjust the performance chart above to view returns across different time horizons.

The maximum drawdown for "Warren Buffett" is 9.62%. The maximum drawdown measures the largest peak-to-trough decline. It's an important metric to evaluate risk and the strategy's behavior during market stress.

To invest in "Warren Buffett", simply click the Invest button on this page. You'll need to open an account with Composer if you don't have one yet, then you can start investing. Composer will automatically execute the trades for you based on the strategy's rules. Composer also supports trading individual stocks, ETFs, and options.