Skip to Content
Symphonies
Sort Bug
Today’s Change
—

A symphony is an automated trading strategy — Learn more about symphonies here

About

Owns whichever of SPY (broad US stocks) or XLE (US energy stocks) has the lower 180‑day RSI (weaker recent performance), aiming for mean reversion. Puts 100% into that one and holds until re‑run; no scheduled rebalancing.
NutHow it works
It always owns just one ETF: either SPY (big US companies) or XLE (US energy companies like Exxon/Chevron). It checks the last ~9 months of price moves using RSI, a 0–100 gauge of recent weakness/strength. It picks the one with the lower RSI (the weaker one), betting on a rebound. No set rebalance schedule. 100% in the chosen ETF until you run it again.
CheckmarkValue prop
RSI-based rotation between SPY and XLE with 100% in the weaker, aiming for mean-reversion. Out-of-sample: lower drawdown (14.8% vs 18.8%), Calmar ~0.89, Sharpe ~0.68. Delivers disciplined downside protection with rebound potential vs the S&P 500.
1M
3M
6M
YTD
1Y
3Y
Max
www.composer.trade
Performance
Compared to selected benchmarks
AlphaBetaR2R
SPY
01.030.630.8
Performance Metrics
Cumulative ReturnAnnualized ReturnTrailing 1M ReturnTrailing 3M ReturnSharpe Ratio
SPY
687.87%8.11%-1.77%0.2%0.5
Sort Bug
525.75%7.17%-1.77%16.29%0.4
Initial Investment
$10,000.00
Final Value
$62,574.85
Regulatory Fees
$111.68
Total Slippage
$642.97
Invest in this strategy
OOS Start Date
May 24, 2024
Trading Setting
Threshold 10%
Type
Stocks
Category
Etf rotation, mean reversion, rsi-based, sector tilt, tactical asset allocation
Tickers in this symphonyThis symphony trades 2 assets in total
Ticker
Type
SPY
State Street SPDR S&P 500 ETF Trust
Stocks
XLE
State Street Energy Select Sector SPDR 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.

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

"Sort Bug" is currently allocated toSPY. Holdings automatically adjust as market conditions change based on the strategy's rules.

Year-to-date, "Sort Bug" has returned 14.55%. You can adjust the performance chart above to view returns across different time horizons.

The maximum drawdown for "Sort Bug" is 14.81%. 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 "Sort Bug", 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.